Catalog Number 8990 Sigma 900 MAX Refrigerated Sampler INSTRUMENT MANUAL 07/03 4ed
Catalog Number 8990 Sigma 900 MAX Refrigerated Sampler INSTRUMENT MANUAL © Hach Company, 2002, 2003. All rights reserved. Printed in the U.S.A.
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Table of Contents Safety Precautions .................................................................................................................................................... 7 Specifications ............................................................................................................................................................ 9 Section 1 Introduction ..............................................................................................................................
Table of Contents 4.1.3 Downlook Ultrasonic Sensor Calibration ................................................................................................. 61 184.108.40.206 Liquid Depth................................................................................................................................ 61 220.127.116.11 Sensor Height ............................................................................................................................. 62 18.104.22.168 Setting the Invisible Range .........
Table of Contents 6.3 4–20 mA Option ................................................................................................................................................ 87 6.3.1 4–20 mA Connection ............................................................................................................................... 87 6.3.2 4–20 mA Programming............................................................................................................................ 87 6.3.
Table of Contents Selecting the Channel .................................................................................................................................... 114 Tabular or Graph Format................................................................................................................................ 114 Graph Manipulation ........................................................................................................................................
Safety Precautions Please read this entire manual before unpacking, setting up, or operating this instrument. Pay particular attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage to the equipment. To ensure the protection provided by this equipment is not impaired, do not use or install this equipment in any manner other than that which is specified in this manual.
Safety Precautions Hazardous Locations The Sigma 900 MAX Refrigerated Sampler is not approved for use in hazardous locations as defined in the National Electrical Code. DANGER Although some Sigma products are designed and certified for installation in hazardous locations as defined by the National Electrical Code, many Sigma products are not suitable for use in hazardous locations.
Specifications Specifications are subject to change without notice. General Dimensions Width 61 cm (24 in.), Depth 61 cm (24 in.), Height 110 cm (43.5 in.), Weight 63.3 kg (140 lb) Cabinet Fiberglass reinforced plastic with beige UV inhibited polymer laminate. Temperature Range -29 to +50 °C (-20 to 122 °F); With optional controller compartment heater, -40 to +50 °C (-40 to 122 °F). Recovery Time With door open one minute in 24 °C (75 °F) ambient and 4 °C sample temperature, 5 minutes.
Specifications Sample Bottle Capacity Single Bottle Mode 6 gal polyethylene (with polypropylene cap) Two Bottle Sampling: Set of two 2.5 gal glass (with Teflon®-lined lid) or 3 gal polyethylene bottle (with polypropylene cap) Multiple Bottle Mode Four Bottle Sampling: Set of four 2.5 gal glass (with Teflon-lined lid) or 3 gal polyethylene bottles (with polypropylene cap) Eight Bottle Sampling: Set of eight 1.9 liter glass bottles (with Teflon-lined lid) or 2.
Specifications Intake Purge Air purged automatically before and after each sample; duration automatically compensates for varying intake line lengths. Pump/Controller Housing High impact injection molded ABS; submersible, watertight, dust tight, corrosion & ice resistant; NEMA 4X,6. Internal Clock Indicates real time and date; 0.007% time base accuracy. Manual Sample Initiates a sample collection independent of program in progress.
Specifications Rain Gauge Input General Information For use with the Tipping Bucket Rain Gauge. The Sampler Program can be initiated upon field selectable rate of rain. Sampler records rainfall data. Each tip = 0.25 mm (0.01in.) of rain. Analog Input Channels General Information Up to 3 additional data logging channels record data from external source(s) Field assignable units -4.0 to +4.0 V dc and 0 to 20 mA 4–20 mA Output General Information Up to 2 output signals available.
Specifications Submerged Area/Velocity Probe Method Doppler Principle/Pressure Transducer. Material Polymer body, 316 series stainless steel diaphragm. Cable 8-conductor urethane sensor cable with air vent. Cable Length 7.6 m (25 ft) standard Sensor Dimension Length: 12.7 cm (5 in.) Width: 3.8 cm (1.5 in.) Height: 2 cm (0.8 in.) Velocity Velocity accuracy: 2% of reading; Zero Stability: <0.015 mps (<0.05 fps). Response time: 4.8 seconds. Profile Time: 4.8 seconds. Range: -1.52 to 6.
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Section 1 Introduction 1.1 Controller Cover The controller is mounted on top of a specially designed refrigerator. The sample line passes through the top of the refrigerator and into the refrigerated compartment where the sample containter(s) are located. The compartment is surrounded by rigid foam insulation and utilizes a 120 CFM condenser fan. An optional controller cover locks and protects the controller from damage and unauthorized users.
Section 1 1.2.1 Keypad Description The keypad includes the numeric keypad, soft keys, and function keys. Numeric Keypad The numeric keypad consists digits 0 through 9, a +/- key, and a decimal key. “Soft” Keys Soft keys are blank, white keys located to the left and right of the display. If no function is shown for a specific key, that key is not currently active. The soft key labels appear on the display and indicates (with a straight line) the proper soft key to push for that action.
Section 1 Status Bar The Status Bar appears along the bottom edge of the display. The appearance of the status bar changes depending upon the function performed (Figure 1). The lower left corner of the Status Bar indicates whether a program is Complete, Running, Halted, or Ready To Start. If it is not needed during a programming step, it disappears. The lower right corner displays system alarm conditions, such as low memory battery, jammed distributor etc. For a list of possible alarms refer to section 6.
Section 1 1.3 Interface Connectors Interface connectors are located on the left side of the controller housing. An optional weather tight terminal box located on the back of the sampler provides conduit termination for all input/output lines. 1 2 3 1. 12 V dc 2. RS232 3. Auxiliary The sampler comes standard with two interface receptacles.
Section 1 1.4 Principle of Operation 1.4.1 Liquid Sensing The sampler is designed for indoor, permanent installation. All controls are located on the front panel. Capped, watertight connectors for interfacing to external devices are located along the left side of the controller. The sampler uses a liquid sensing system to detect the absence or presence of liquid at the peristaltic pump intake. The liquid sensor (Figure 3) is located on the front of the control housing.
Section 1 Intake Tube Pre-Rinse The liquid sensor also rinses the intake tubing with the liquid from the sample source before taking each sample. Upon sample initiation, the pump purges the intake line. The pump then reverses, pulling liquid through the tubing, until it reaches the liquid sensor. When the sensor detects liquid, the pump purges back to the source, and then draws a sample. After the desired sample is collected, the pump purges the intake line and awaits the next sample cycle.
INSTALLATION DANGER Some of the following manual sections contain information in the form of warnings, cautions and notes that require special attention. Read and follow these instructions carefully to avoid personal injury and damage to the instrument. Only personnel qualified to do so, should conduct the installation/maintenance tasks described in this portion of the manual.
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Section 2 DANGER This instrument should be installed by qualified technical personnel to ensure adherence to all applicable electrical codes. Installation DANGER Cet appareil doit être installé par du personnel technique qualifié, afin d'assurer le respect de toutes les normes applicables d'électricité. 2.1 Unpacking the Instrument Remove the sampler from the shipping carton and inspect it for any damage. Contact Hach Customer Service at 1-800-227-4224 if any items are missing or damaged. 2.
Section 2 2.3 Installing the Pump Tube in the Sensor Body 1. Remove the four screws on the pump cover (Figure 5). Note: Do not stretch the tubing in the sensor body, as this could affect the ability of the sensor to detect liquid through the pump tubing. 2. Remove the front cover of the pump housing. Remove the tubing. Locate the black dots on the tubing. The end of the tube that extends farthest beyond the black dot attaches to the stainless steel tubing connector. 3.
Section 2 2.3.1 Attaching the Intake Line 22.214.171.124 Attaching the Vinyl Tubing The connection kit (Cat. No. 2248) contains two identical assemblies, one for connecting vinyl tubing to the tubing attached to the sampler, and the other for connecting the vinyl tubing to an intake strainer or remote pump. The kit contains four hose clamps and two stainless-steel tubing connectors. 1.
Section 2 4. Repeat the procedure for the fitting that connects the Teflon-lined tubing to the silicone pump tubing. Figure 8 3/8″ ID Teflon-lined Tubing Attached to Intake Strainer and Tubing Connector 1. Intake strainer 4. Stainless-steel tubing connector 2. Tubing clamp (3 required) 5. Teflon-lined intake tubing 3. Two-inch piece of silicone tubing 6. Wide end of stainless steel tubing connector 2.3.
Section 2 Figure 9 Bottle Configurations 2.5 Setting Up the Bottles 2.5.1 One-Bottle Sampling For single bottle composite sampling, install the Full Bottle Shut-off (refer to Section 2.7 on page 31) and place the bottle in the center of the refrigerator (Figure 15 on page 31). The Full Bottle Shut-off positions the sample tubing over the bottle mouth. 2.5.2 Two- and Four-bottle Sampling For two-bottle sampling, install the distributor (refer to Section 2.6.
Section 2 For four-bottle sampling, install the distributor and place all four bottles in the tray as shown in Figure 11. Figure 10 Two-bottle Locations 2 2 3 1 1 Front 1. Single Bottle Location Figure 11 2. Two Bottle Location 3. Slots for Wire From Bottle Tray (8 or 24 bottle) Four-bottle Locations 1 2 3 1 4 2 Front 1. 1, 2, or 4 Bottle Locations 2. Slot for Wire From Bottle Tray (8 or 24 bottles) 2.5.
Section 2 Figure 12 Eight-, 12-, or 24-bottle Configuration 1 2 3 1. Distributor 2. Retainer 3. Bottles and Bottle Tray 2.6 Installing the Distributor (Multiple Bottle Operation) Note: Make sure the sampler is powered off before removing or installing the distributor. For multiple bottle sampling, a motorized arm (Distributor) is provided to automatically position the sample tube over the proper bottle.
Section 2 2.6.1 Distributor Arm Alignment 1. Program the sampler for 24-bottle operation. 2. Press START PROGRAM to set the distributor shaft to the Bottle #1 position. 3. Place the arm on the distributor shaft and align the rib on the inside wall of the control housing skirt. 4. Secure the arm to the shaft by tightening the 1/8 in. hex-head screw, located on the distributor arm. Figure 13 Distributor Tubing in Arm 1 2 1. Distributor Shaft Figure 14 2. Nozzle End (1/8 in.
Section 2 2.7 Installing the Full-Bottle Shut-Off Device (Single Bottle Operation) 1. Install the rubber grommet into the hole provided in the cap of the composite bottle. 2. Slide the Full Bottle Shut-Off, float first, into the bottle through the center of the grommet. 3. Insert the Full Bottle Shut-Off connector into the receptacle (Figure 15) and securely tighten. Figure 15 Full Bottle Shut-off Installation 2 1 1. Full Bottle Shut-off 2. Refrigerator 2.
Section 2 Important: Whenever electricity is present, there is a possibility of electrical shock. Before connecting the sampler to an ac power source, the following safety precautions should be taken: • Check the power source to make sure that it satisfies the ac power requirements of the sampler. • Make sure that all electrical installations and connections are in accordance with national and local electrical codes. • Before performing any maintenance, disconnect the sampler from the power source.
Section 2 2.9.1 Splitter Interface Use the Splitter Interface (Cat. No. 939) when more than one signal is needed simultaneously. Connecting the interface to the 6-pin connector on the sampler provides three additional connectors. Two or more interfaces may be connected in series to allow for additional connections. Figure 16 8990hrd.
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OPERATION DANGER Handling chemical samples, standards, and reagents can be dangerous. Review the necessary Material Safety Data Sheets and become familiar with all safety procedures before handling any chemicals. DANGER La manipulation des échantillons chimiques, étalons et réactifs peut être dangereuse. Lire les Fiches de Données de Sécurité des Produits (FDSP) et se familiariser avec toutes les procédures de sécurité avant de manipuler tous les produits chimiques.
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Section 3 Basic Programming Setup 3.1 Initial Power-Up of Sampler After pressing the ON key, the sampler performs a complete diagnostic test and displays the menu shown when the unit was last turned off. Set the instrument programming features when the Main Menu is displayed. The Main Menu is the starting point for all programming operations.
Section 3 To make changes to the program entries after the basic programming setup, press MAIN MENU and select SETUP>MODIFY SELECTED ITEMS and highlight the program entry using the UP and DOWN keys. To review all information in the Setup and Option menus without worrying about accidentally changing the information, use the Review All Items function to verify that the program is properly set up. For more information on this function refer to Review All Items on page 113. 1.
Section 3 1-C. Enter the bottle volume using the numeric keypad and select gallons or milliliters using the CHANGE UNITS key. 11:00 AM 21 - APR - 01 ACCEPT BOTTLES BOTTLE VOLUME —— CHANGE UNITS CLEAR ENTRY BACKUP ENTER: 0.500—99.90 1-D. Press ACCEPT and continue to Intake Tubing. Step 2 - Intake Tubing 11:00 AM 21 - APR - 01 ACCEPT INTAKE TUBING INTAKE TUBE LENGTH: _____ CHANGE UNITS CLEAR ENTRY BACKUP ENTER: 3—99 2-A.
Section 3 Step 4 - Program Delay Note: If both Setpoint Sampling and Program Delay are enabled, the program delay is evaluated first, prior to any checking for setpoint conditions. 4-A. Enable or Disable Program Delay using the CHANGE CHOICE key. Enabling the Program Delay will cause the sampling program to delay starting until a user specified time and day of week are programmed. 4-B. After enabling the program delay, enter the time and day of week that the program will begin.
Section 3 b. Enter the Interval Between Samples. Press ACCEPT to continue. 11:00 AM 21 - APR - 01 SAMPLE COLLECTION ACCEPT INTERVAL: 00:00 (hrs:min) CANCEL CLEAR ENTRY ENTER: 000:01—999.00 (hrs:min) c. Select either Take First Sample Immediately or After The First Interval? Note: When the program is started, the first sample is taken immediately upon pressing the start button or after the first interval has elapsed.
Section 3 c. Select either Integral or External flow meter and press ACCEPT. d. Enter the flow volume between samples using the numeric keypad and select a unit of measure using the CHANGE UNITS key, then press ACCEPT. Refer to Table 2 for flow unit choices. 11:00 AM 21 - APR - 01 ACCEPT SAMPLE COLLECTION CHANGE UNITS TAKE SAMPLE EVERY: 1500 gal CLEAR ENTRY CANCEL ENTER: 1.
Section 3 Flow Proportional Constant Time, Variable Volume Sampling (CTVV) A Level-Velocity Sensor Input must be logged and electrically connected for the CTVV feature to work correctly. CTVV samples are taken at user-specified constant (fixed) intervals.
Section 3 a. In the Sample Collection menu, press CHANGE CHOICE until Flow Proportional is displayed. Press ACCEPT. 11:00 AM 21 - APR - 01 SAMPLE COLLECTION CHANGE UNITS ACCEPT SAMPLE COLLECTION: FLOW-PROPORTIONAL CANCEL ENTER: 1.00 - 99999999 b. In the Flow Pacing menu, press CHANGE CHOICE until Const Time/Var Vol appears. Press ACCEPT. 11:00 AM 21 - APR - 01 FLOW PACING CHANGE CHOICE ACCEPT FLOW PACING MODE: CONST TIME/ VAR VOL CANCEL CHOICES: VAR T / CST VOL, CST T / VAR VOL c.
Section 3 f. In the Collection Period menu use the numeric keypad to enter the time period for collecting samples. 11:00 AM 21 - APR - 01 ACCEPT CONST TIME/ VAR VOL COLLECTION PERIOD 0:30 (hrs:min) CLEAR ENTRY CANCEL ENTER: 000:01—999:00 (hrs: min) g. Press ACCEPT to continue to Sample Distribution. Step 6 - Sample Distribution Sample distribution describes the way samples are deposited in a bottle(s). Several bottle combinations are available with the sampler (Figure 10 on page 24).
Section 3 If NO is selected: a. Select Samples per Bottle or Bottles per Sample. Example 1: Samples Per Bottle • Bottles— 8 • Sample Collection; Time-Proportional; Sampling Interval—30 min. • Sample Distribution; Deliver Each Sample to All Bottles?— No Samples Per Bottle— Yes Number of Samples Per Bottle— 3 • Sample Volume—100 mL Every 30 minutes a sample is initiated.
Section 3 b. If Stop After Last Sample is chosen, enter the samples to collect using the numeric keypad. Press ACCEPT to continue to Liquid Sensor.
Section 3 Step 8 - Sample Volume Note: The minimum sample volume is ten milliliters. When multiple bottles are selected in Bottle Per Sample mode all bottles in a subset receive a full sample volume. The volume is not divided among the bottles. 8-A. Enter the desired volume of each sample using the numeric keypad. Press ACCEPT to continue to Intake Rinses. 11:00 AM 21 - APR - 01 SAMPLE VOLUME ACCEPT BACKUP SAMPLES VOLUME: ______ CLEAR ENTRY ENTER: 10 — 9999 Step 9 - Intake Rinses 9-A.
Section 3 Step 11 - Site ID 11-A. Enter a site identification number of up to 8 digits. This Site ID will appear on all data printouts. This feature is useful when multiple sites are monitored using a single flow meter or if data readings from multiple flow meters are collected. 11:00 AM 21 - APR - 01 SITE ID ACCEPT BACKUP SITE ID: 00000000 CLEAR ENTRY (USE NUMERIC KEYPAD) 11-B. Press ACCEPT. 11-C.
Section 3 Step 12 - Program Complete Output Program Complete Output sends a +12 V dc signal out Pin F of the Auxiliary Receptacle at the completion of the sampling program. This signal is also sent when a Full Bottle condition causes the program to complete. The Program Complete signal remains on (+12 V dc) for 61 seconds and then turns back off (0 V dc). Program Complete Output is used for the following purposes: • Multiple Sampler Operation.
Section 3 13-C. Select either Start on Setpoint or Stop on Setpoint by pressing CHANGE CHOICE. Press ACCEPT to continue. • Start on Setpoint will start a program when the setpoint condition is met. The program continues to run even if the condition falls back within the setpoint limits. • Stop On Setpoint halts the program if the setpoint condition falls back within the setpoint limits and starts again if the limits are exceeded. 13-D. Highlight the desired channel to trigger from, then press SELECT.
Section 3 13-I. Enter a delay when input is active. This delay will keep the program from starting until the end of the delay period. Using the numeric keypad, enter the delay in minutes and/or hours. Press ACCEPT.
Section 3 Bottle Number If the Program Complete Output is disabled, then it is used in conjunction with this Special Output to transmit the bottle number to the connected device. The Special Output signal can be configured to activate during one of the following conditions: • After Each Sample—One second pulse at the completion of each sample cycle. It signals an external datalogger or PC that a sample cycle was initiated.
Section 3 15-E. Enter the Start Time #1, press ACCEPT to continue. Enter Stop Time # and press ACCEPT to continue. 11:00 AM 21 - APR - 01 ACCEPT START/STOP TIMES PROGRAM START # (TIME:DAY) 1 CLEAR ENTRY HIT CLEAR, THEN ACCEPT, AFTER LAST ENTRY CHANGE DAY 11:00 AM 21 - APR - 01 ACCEPT CHANGE AM/PM START/STOP TIMES PROGRAM STOP # (TIME:DATE) CLEAR ENTRY HIT CLEAR, THEN ACCEPT, AFTER LAST ENTRY 1 CHANGE AM/PM CHANGE DAY 15-F. Continue entering Start and Stop times until finished.
Section 3 • Storm water samplers are equipped with a special prerinse that occurs only with the first sample collection. This “one time only” rinse ensures a clean intake for installations that may remain dormant for extended periods, and extends battery life by eliminating the prerinse for subsequent samples. 16-A. Highlight Storm Water using the UP and DOWN keys on the Advanced Sampling Menu. Press SELECT to continue.
Section 3 The number of first flush bottles will depend on the sample volume requirements in the NPDES permit. 11:00 AM 21 - APR - 01 ACCEPT CANCEL STORM WATER FIRST FLUSH: NUMBER OF BOTTLES: 1 CLEAR ENTRY ENTER: 1— 4 b. Enter number of samples to collect using the numeric keypad. 11:00 AM 21 - APR - 01 ACCEPT CANCEL STORM WATER FIRST FLUSH: SAMPLER TO COLLECT: 6 CLEAR ENTRY ENTER 1 — 999 c. Enter the first flush sampling interval. This is the time period between sample cycles.
Section 3 f. Enter the Program Time Limit. NPDES typically requires monitoring during the first three hours of any given storm. If the flow volume was not as high as expected, flow-weighted sampling could continue for some time as flow rates drop off and sample intervals become longer. 11:00 AM 21 - APR - 01 ACCEPT CANCEL SETPOINT SAMPLING STORM WATER: PROGRAM TIME LIMIT: (hrs:min) CLEAR ENTRY ENTER: 000:01 — 999:00 (hrs:min) g. Press ACCEPT to continue to Timed Bottle Sets.
Section 3 17-D. Enable or Disable Continuous Mode using the CHANGE CHOICE key. If Continuous Mode is enabled the program will continuously run and switch bottle sets after every specified duration elapses, until manually stopped. If Continuous Mode is disabled, then the sampling halts when the last bottle set in the tray is full. 17-E. Press ACCEPT to continue to Upset Sample.
Section 3 18-E. Enter the desired high or low trigger point using the numeric keypad. Press ACCEPT to continue. 11:00 AM 21 - APR - 01 ACCEPT CANCEL UPSET SAMPLES UPSET SAMPLING: HIGH TRIGGER POINT: 00000 in. CLEAR ENTRY (USE NUMERIC KEYPAD) 18-F. Enter the Deadband value or, if programming for Flow Rate Of Change or Rainfall, enter a time interval when the flow or rainfall change must take place (refer to Alarm Relays Programming on page 91).
Section 3 Step 19 - Variable Intervals 19-A. Highlight Variable Intervals using the UP and DOWN keys on the Advanced Sampling Menu. Press SELECT to continue. 11:00 AM 21 - APR - 01 STORM WATER TIMED BOTTLE SETS SELECT UPSET SAMPLING VARIABLE INTERVALS VARIABLE VOLUME ADVANCED SAMPLING RETURN 19-B. Enable or Disable Variable Intervals using the CHANGE CHOICE key. Press ACCEPT to continue. 19-C. Set sample intervals using the numeric keypad.
Section 4 Sensor Setup 4.1 Downlook Ultrasonic Sensor 4.1.1 Downlook Ultrasonic Sensor Connection The downlook ultrasonic sensor connection is located on the back side of the refrigerated cabinet. The gray rectangular box houses the ultrasonic module and the transducer connector labeled ULTRASONIC. The connector is keyed and can only be inserted in the proper orientation (key up). 4.1.
Section 4 4. Enter the ambient air temperature at the transducer location. For optimum results, allow enough time (100 minutes) to ensure that the sensor is at equilibrium with the surrounding ambient temperature. Press ACCEPT. 5. Select the Liquid Depth method and enter the new level. 6. Take a physical measurement of the liquid depth (level) and enter the value. Press ACCEPT when finished. 4.1.3.
Section 4 4. Select either inches or centimeters using the CHANGE UNITS key. The distance must be greater than the minimum deadband of 10 in. (25.4 cm) for the 75 kHz sensor and 15 in. (38.1 cm) for the 50 kHz sensor. 5. Press ACCEPT when finished. 4.2 Submerged Area/Velocity Sensor The Submerged area/velocity sensor simultaneously measures level and velocity. 4.2.
Section 4 7. Set the Velocity Units (fps or m/s), using the UP and DOWN arrow keys. Press ACCEPT to continue. 8. Highlight Velocity Cutoff, using the UP and DOWN keys. Press SELECT. 9. Read the Velocity Cutoff information screen. Press any key to continue. 10. Set the Velocity Cutoff using the numeric keypad. Press ACCEPT. 11. Set the Velocity Default, using the numeric keypad. Press ACCEPT. Press RETURN to go back to the Setup Menu or Main Menu to return to the Main Menu display. 4.2.
Section 4 3. Place the sensor face up in the bucket or liquid. Tap lightly to remove air bubbles. If these bubbles are not removed you can receive false readings from the sensor during calibration (Figure 17). Note: Always check the Level Adjust when reinstalling the sampler following a calibration. (See Keypad Description on page 16.) 4. Place the sensor face down under at least 16 cm (6 in.) of water and wait 20 seconds. Make sure the water surface is calm and the sensor is stable. 5.
Section 4 Table 6 Submerged Level Sensor Base Board Connection (J21) Pin Signal Description Wire Color A V+ Red B Out + Yellow C Out - Green D Ground Black 4.3.2 Submerged Pressure Sensor Programming 1. From the Main Menu, select OPTIONS>LEVEL SENSOR. 2. Select Submerged Xducer using the CHANGE CHOICE key and press ACCEPT. 4.3.3 Submerged Pressure Sensor Calibration In sites with harsh conditions (extremes of level, temperature, harsh chemicals, etc.
Section 4 Vertical Orientation Only a. Place the sensor under at least 16 cm (6 in.) of water in a vertical orientation. Make sure the sensor is stable and not moving around. Then press ACCEPT to continue. b. Carefully measure the depth (D1) from the surface of the water to the first weld mark that encircles the sensor body just above the breather vent holes (Figure 19). The weld mark indicates the location of the internal diaphragm. c. Enter the depth (D1) and press ACCEPT when done.
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Section 5 Optional Device Installation This section describes how to setup a rain gauge to the Sampler as well as how to connect, program, calibrate, and maintain the optional water quality probes: • Rain Gauge (section 5.1 on page 69 • Dissolved Oxygen Probe (section 5.4 on page 74) • pH Probe (section 5.2 on page 70) • Conductivity Probe (section 5.5 on page 76) • ORP Probe (section 5.3 on page 72) 5.1 Rain Gauge An external “tipping bucket” rain gauge (Cat. No.
Section 5 5.1.1 Rain Gauge Programming 1. From the Main Menu select OPTIONS>ADVANCED OPTIONS>DATALOG. 2. Highlight Select Inputs using the UP and DOWN keys and press SELECT. 3. Highlight Rainfall using the UP and DOWN keys and press SELECT. Note: When logging is enabled, an arrow will point to the logged channel. 4. Press the CHANGE CHOICE key to cycle between Logged and Not Logged, then press ACCEPT. 5. Enter a logging interval using the numeric keypad, then press ACCEPT.
Section 5 Figure 22 pH Probe Wiring to Junction Box (grounded) RTD RTD REF GND Yellow Green Red Black pH Clear Glass Figure 23 pH Probe Wiring to Junction Box (un-grounded) RTD RTD REF GND Yellow Green Red pH Clear Glass 5.2.2 pH Probe Programming 1. From the Main Menu, select OPTIONS>ADVANCED OPTIONS>DATALOG. 2. Highlight Select Inputs using the UP and DOWN keys and press SELECT. 3. Highlight pH using the UP and DOWN keys, then press SELECT. 4.
Section 5 Probes must be calibrated to the sampler each time they are cleaned or replaced. Regular inspection and comparison to a hand-held pH meter can help determine the optimum cleaning and calibration schedule for specific applications. 1. From the Main Menu, select OPTIONS > ADVANCED OPTIONS > CALIBRATION > pH. 2. Place the pH probe into the first buffer solution, then press any key to continue. 3. Enter the temperature of the first buffer solution using the numeric keypad. Press ACCEPT to continue.
Section 5 Table 9 ORP Connector Pin Assignments (J3) Pin Signal Description Wire Color A +5 V dc White B ground Blue C reference Yellow D pH/ORP Black E 5 V dc Red F RTD Green The ORP probe consists of three wires; a pink, black, and red wire. There is no temperature sensor on the ORP probe. 1. Attach the clear wire to either screw on the terminal strip labeled GLASS. 2. Attach the black wire to the REF screw on the other terminal strip. 3.
Section 5 4. Attach the positive battery terminal to the terminal block screw labeled “glass” and the negative battery terminal to the terminal block screw labeled “ref.” 5. After making all connections, measure the exact voltage on the “C” cell or power supply with a voltmeter. Then press a key to continue. The sampler displays the message “Waiting for ORP to Stabilize.” 6. Once the reading is sufficiently stable enter a new millivolt level. The “C” cell battery should be approximately 1500 mV (or 1.
Section 5 5.4.3 Dissolved Oxygen Probe Temperature Programming 1. From the Main Menu, select OPTIONS>ADVANCED OPTIONS>DATALOG 2. Highlight Select Inputs using the UP and DOWN keys and press SELECT. 3. Highlight D.O. Temp. using the UP and DOWN keys, then press SELECT. 4. Cycle between Logged and Not Logged, then press ACCEPT. 5. Enter a logging interval using the numeric keypad, then press ACCEPT. Valid logging intervals are shown on the status bar. 6. Select temperature units (°C, °F) using CHANGE CHOICE.
Section 5 5.5 Conductivity Probe 5.5.1 Conductivity Probe Connection Table 11 Conductivity Probe Wiring (J20) Pin Signal Description Wire Color A Probe Black B Probe Red C RTD White D RTD Green 5.5.2 Conductivity Probe Programming 1. From the Main Menu, select OPTIONS>ADVANCED OPTIONS>DATALOG. 2. Highlight Select Inputs using the UP and DOWN keys. Press SELECT. 3. Highlight Conductivity (COND.) using the UP and DOWN. Press SELECT. 4.
Section 5 5.5.4 Conductivity Probe Calibration 1. From the Main Menu, select OPTIONS > ADVANCED OPTIONS > CALIBRATION > CONDUCTIVITY. 2. Clean and dry the probe. 3. Place the sensor and thermometer in the calibration solution (Cat. No. 3230). The temperature sensor is located in the middle of the sensor body allowing the probe to be completely submerged in the solution. 4. Allow the sensor to stabilize in the solution about 10 minutes to ensure that the probe and the solution are the same temperature. 5.
Section 5 c. If the calibration temperature is lower than the labeled value, then subtract that value from the standard (1.0 mS) to get the actual value to be used for calibration. 1.0 mS - (correction factor) 0.13002 = 0.86998 mS d. If the calibration temperature is higher than the labeled value, then add that value to the standard (1.0 mS) to get the actual value to be used for calibration. 7.
Section 6 Communication Setup Communication setup details connections and programming features of the: • RS232 Serial Port (section 6.1 on page 79) • Optional Modem (section 6.2 on page 80) • 4–20 mA Option (section 6.3 on page 87) • Alarm Relays (section 6.4 on page 89) • Analog Inputs (section 6.5 on page 93) 6.1 RS232 Cable 6.1.
Section 6 6.2 Modem 6.2.1 Modem Connection This connection is for interfacing the optional internal modem (Cat. No. 1602) with a standard public telephone line. Table 14 Modem CPU Connections (J8) Pin Signal Description A Tip B Ring C 12 V dc D 12 V dc Reference 6.2.2 Modem Programming 1. From the Main Menu, select OPTIONS>ADVANCED OPTION>COMMUNICATIONS SETUP.
Section 6 4. Select either pulse or tone dialing modes. This will depend on the type of phone service selected for the site phone line. Press ACCEPT. 11:00 AM 21 - APR - 01 ACCEPT MODEM SETUP CHANGE CHOICE DIAL METHOD: TONE CANCEL CHOICES: TONE, PULSE 5. Enter a phone number using the numeric keypad. This phone number is used by the modem when it sends an alarm report to a personal computer running InSight software.
Section 6 4. Loosen the four screws on the cover of the cell phone enclosure and remove the cover, to view the signal strength. The signal strength is indicated by the number of dashes across the bottom of the cell phone display. The more dashes the greater the signal. 126.96.36.199 Reliable Communications In order to ensure reliable communications between the sampler and the host computer, it is absolutely essential that the host computer is equipped with a Cellular Compatible modem.
Section 6 188.8.131.52 Cellular Modem Scheduling Basis After enabling Cellular Modem Scheduling it will be necessary to choose the type of scheduling; Hourly, Daily or Weekly. If Hourly is chosen the modem and cell phone are powered up once every hour on the hour for a user defined duration. If Daily is chosen the modem and cell phone are powered up once a day, every day, at a user defined time and duration.
Section 6 184.108.40.206 Cellular Modem Triggering When Cellular Modem Triggering is enabled both the cell phone and modem remains on for a user specified duration after calling a pager or remote computer when an alarm condition is met. It is useful when calling back to a site via modem, after receiving an alarm, or viewing the current status.
Section 6 2. Enter the phone number of the paging service. Press ACCEPT. 11:00 AM 21 - APR - 01 ACCEPT PAGER SERVICE PHONE NUMBER: 555-5555 CANCEL MODEM SETUP CLEAR ENTRY (USE NUMERIC KEYPAD) 3. Enter the number of pagers to call when an alarm occurs. Press ACCEPT. 11:00 AM 21 - APR - 01 MODEM SETUP ACCEPT NUMBER OF PAGERS: 3 CANCEL CLEAR ENTRY ENTER 1 - 3 4. Enter the phone numbers of the individual pagers to send the message to.
Section 6 Table 15 Pager Alarm Codes Alarm Code Equipment Reason Alarm Code Equipment Reason Low Main Battery 1 — Battery pack is less than 11.5 V High CH5 28 — — Memory Battery 2 — Internal memory battery is low High CH6 29 — — Low Slate Memory 3 — Less than 10% slate memory left High CH7 30 — — 31 — — Slate Memory Full 4 — Slate memory is used up High Reference Temp.
Section 6 6.3 4–20 mA Option The 4–20 mA option provides a current loop for controlling external devices such as a chart recorder or PC. Either one or both of the 4–20 mA outputs can be factory installed and are isolated from each other. 6.3.1 4–20 mA Connection The interface has a 3-ft cable with a connector on one end, and a 10-ft cable with two open wire leads on the other. Insert the connector into the sampler receptacle labeled “Auxiliary”, located on the left side of the control housing.
Section 6 5. Select an analog Input Channel (e.g., channel 1, 2, 3, or, flow, etc.) to assign to that output. Press CHANGE CHOICE to cycle through the channel names. When the desired channel is displayed, press ACCEPT. 11:00 AM 21 - APR - 01 4–20 mA OUTPUTS CHANGE CHOICE ACCEPT INPUT CHANNEL: FLOW CANCEL SELECT APPROPRIATE UNITS 6. Assign a channel value to the 4 mA current value. This value is typically 0, however any value can be set.
Section 6 7. Press any key to set the output to 20.00 mA dc. 8. Measure the current on the selected output using the multimeter and enter the measured value using the numeric keypad. Press ACCEPT to complete the calibration. By entering the measured current values, the microprocessor will electronically adjust the outputs to compensate for the difference between the measured values and the expected values.
Section 6 6.4.1 Alarm Relays Connection Table 17 Relay Connector (J17) Pin Signal Description Wire Color A +12 V dc Red B Relay #1 Yellow C Relay #2 Black D Relay #3 Red E Relay #4 Green Figure 26 Relay Pin Connections Table 18 Relays Connector Relay J2 1 J3 2 J4 3 J5 4 Relay Junction Box Required relay box is an alarm relay box assembly with a 10-ft long cable with a 6-pin connector on one end and a relay box on the other end (Figure 27). 1.
Section 6 Figure 27 Single Relay Wiring Inside the Relay Junction Box 6.4.2 Alarm Relays Programming Program alarms activate based on certain conditions (low battery, low memory, etc.). When an alarm is tripped, an action is initiated (report via modem, dial a pager, or set a relay). There are two types of alarms: Trouble Alarms and Set Point Alarms. 220.127.116.11 Trouble Alarms Trouble Alarms initiate an action when a trouble condition occurs. For example, a relay may close when the memory is full.
Section 6 1. Enable one of the alarm conditions. 2. Select an action to occur when the alarm is activated. 3. Set either a High trip point or a Low trip point. 4. After entering the trip point enter the deadband value. The deadband is the area between the alarm “turn on” and “turn off.” Note: Log rainfall to use an alarm on a rainfall condition; likewise, log flow in order to implement an alarm on a flow rate of change.
Section 6 Figure 28 Deadband Concept 7.60 7.40 pH 7.20 Alarm Off 7.00 Deadband 6.80 Alarm On 6.60 Low Alarm Setpoint= 6.9 pH 6.40 6.5 Analog Inputs 6.5.1 Analog Inputs Connection Note: 4–20 mA inputs must be isolated. Maximum load per unit is 200 ohms. Analog voltage as well as analog current input signals are accommodated in a single connector. To connect the analog voltage signal (-4.0 to +4.0 V dc): 1. Tie ground wire to Pin B (ground). 2.
Section 6 There are a total of three analog input channels available on the sampler. These inputs accept 4–20 mA dc or -4.0 to +4.0 V dc analog signals. They can be logged and graphed and can also be used to trigger alarms, cause setpoint samples, and control 4–20 mA outputs. 6.5.2 Analog Inputs Programming Analog input channels can accept a signal from an external device. This signal may range from -4.0 V dc (min) to +4.0 V dc (max) or from 4 to 20 mA dc depending on the input selected.
MAINTENANCE DANGER Some of the following manual sections contain information in the form of warnings, cautions and notes that require special attention. Read and follow these instructions carefully to avoid personal injury and damage to the instrument. Only personnel qualified to do so, should conduct the installation/maintenance tasks described in this portion of the manual.
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Section 7 DANGER Always disconnect power to the sampler before performing any maintenance or service. Maintenance DANGER Débranchez toujours l'alimentation de l'analyseur d'echantillonneur avant de procéder à un entretien ou une réparation. 7.1 Cleaning the Sampler 7.1.1 Cleaning the Sampler Cabinet Clean the interior and exterior of the sampler cabinet with a damp sponge and mild detergent. Do not use abrasive cleaners. 7.1.
Section 7 Note: To extend the life of the tubing, rotate the pump tube 90 degrees in the pump housing after approximately 2/3 of the life has been realized (once the tube life has been determined through use). Experience at a particular site will be your best indicator of tubing life. Visually inspect the tubing and rollers on a regular basis after initial installation to get a feel for what maintenance your site will require.
Section 7 Electrostatic Discharge (ESD) Considerations To minimize ESD risks, maintenance procedures not requiring power to the sampler should be performed with power removed. Delicate internal electronic components can be damaged by static electricity, resulting in degraded instrument performance or eventual failure.
Section 7 To open the controller: 1. Remove the 17 screws from around the perimeter of the controller back panel. 2. Carefully pull open the bottom panel and let the attached connectors swing out of the way. 3. If necessary for the repair being performed, unplug the appropriate connectors. Always note each connector location before unplugging anything. Re-installing a plug into the wrong connector can cause extensive damage.
Section 7 7.7 Circuit Board Identification There are two main circuit boards in the sampler; the Utility Board and the CPU board. The CPU board is attached to the bottom panel and the Utility board is located inside the control housing behind the motor/gearbox assembly. Note: Removal and handling of the circuit boards used in the sampler requires knowledge of ESD (Electro-Static Discharge) precautions and the CMOS (Complementary Metal-Oxide Semiconductor) circuit components used in the sampler.
Section 7 Figure 32 Utility Board UTILITY BOARD J17 J21 J6 J19 J7 J18 J5 J1 J3 C11 J20 TB1 J15 J22 J2 F2 J16 J4 J8 J9 J10 J11 J12 J13 J14 Table 21 Utility Board Connections ID Description ID Description J1 Distributor J12 Analog Input Channel 5 J2 Auxiliary J13 Analog Input Channel 6 J3 pH/ ORP J14 Analog Input Channel 7 J4 CPU Board J15 Thermal Control J5 Rain Gauge J16 12 V dc Main J6 Bubbler Module J17 Relay Output J7 Fluid Sensor #1 J18 4–20 mA PCB J8 A
Section 7 7.8 Replacing the Fuse DANGER For continued protection against fire, replace fuses with only fuses of specified type and current rating. PELIGRO Para una continua protección contra incendios, reemplace los fusibles únicamente por los del tipo y capacidad recomendados. Medium Delay Fuse, 5 Amp The main 12 volt line is fused as soon as it enters the controller housing. This is a 5-amp medium delay fuse (Cat. No.
Section 7 7.11 Memory Battery Random Access Memory (RAM) is a very reliable data storage medium for microprocessor applications. However, RAM requires power at all times. If power is removed, the data stored in the RAM chip is lost. Therefore, RAM chips cannot be powered from the sampler power supply because data and program settings would be lost every time the power cord was unplugged. A separate battery located inside the sampler controller is provided to power the RAM chips and the real-time clock.
Appendix A Quick Start Guides For best results, read the instrument manual before beginning. Use this guide as a reminder. Sigma 900 MAX Refrigerated Sampler Main Menu Flow Chart Bottles Intake Tubing Program Lock Program Delay Sample Collection Sample Distribution Liquid Sensor Sample Volume Intake Rinses Sample Retries Site ID Advanced Sampling * Sample History Level Flow ..etc. Graph Data Display Data Date / Time June15 June15 June15 June15 2:10pm 2:15pm 2:20pm 2:25pm Flow Setup MAIN MENU 314.
Appendix A Sigma 900 MAX Refrigerated Sampler Setup Flow Chart Main Menu Display Data Options Status Setup Notes *1 Note: grey menu not available if CTVV selected for Flow Pacing Displays all program items (no changes allowed) Review All Items or Steps you through each program item (same items as Modify Selected Items below) Modify All Items *2 Note: Flow Pacing menu will not remember previous setting whenever you re-enter that menu, i.e., it reverts to default CVVT.
Appendix A Sigma 900 MAX Refrigerated Sampler Options Flow Chart Main Menu Display Data Advanced Options or select 4-20 mA Outputs Enable or Disable Status Setup Select Output A or B select Select a Channel to Assign to Output A or B Accept Enter 4 mA Input Value Accept or Alarms Time / Date select Options Enter 20 mA Input Value select See ALARMS Flowchart - select See CALIBRATION Flowchart - or Calibration or Communications Setup select select Enable / Disable Modem Power RS232 S
Appendix A Sigma 900 MAX Refrigerated Sampler Advanced Sampling Flow Chart Main Menu Display Data Modify Selected Items Options Status Setup An arrow displayed next to an Advanced Sampling option in the menu display signifies it is enabled. Advanced Sampling Note: Enables pin F for Program Complete output on Auxillary connector. Also disables its use for Bottle# & Full Bottle Indicator.
Appendix A Sigma 900 MAX Refrigerated Sampler Alarms Flow Chart Main Menu Display Data Advanced Options Options Status Setup (arrow indicates enabled) Alarms Memory Battery Low Slate Memory Slate Memory Full Modem Failure U-Sonic Echo Loss X-Ducer Ringing U-Sonic Failure RS-485 Timed Out Modem Failure Missed Sample Purge Failure Jammed Distributor Full Bottle Unable to Cool Unable to Heat (arrow indicates enabled) Pick One Enable or Disable select Report via Modem Set Relay #1 Set Relay #2 Set
Appendix A Sigma 900 MAX Refrigerated Sampler Calibration Flow Chart (1 of 2) Main Menu Display Data Options Status Setup Advanced Options Calibration 4-20 mA Outputs select Select Output A or Output B Output A Output B Press a key for 4 mA Press a key for 20 mA select select Enter Actual Output Current or ORP select select Apply Positive Reference Signal to ORP Input select Enter Actual Output Current Enter New mV Value or pH select Place Sensor in First Buffer Place Sensor in Sec
Appendix A Sigma 900 MAX Refrigerated Sampler Calibration Flow Chart (2 of 2) Main Menu Display Data Options Status Setup Advanced Options Calibration select Submerged Probe select Select Orientation of Sensor (horizontal or vertical) select Place Probe on a Flat Surface and Press Any Key select Remove Sensor From Liquid (press a key) select Submerge Sensor to Known Depth select Submerge Sensor to Known Depth select Enter new Depth or Submerged Velocity Probe select Enter new Depth
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Appendix B Programming Features Review All Items This function reviews all information in the Setup and Option menus without worrying about accidentally changing the information. Use this function to verify that the program is set up properly. All program entries and the status of all logged channels are displayed. Since this information fills more than one screen, scroll through the setup information one page at a time with the arrow keys.
Appendix B Selecting the Channel Note: Only the channels for which logging has been enabled will be listed. 1. Press DISPLAY DATA from the Main Menu to display a list of logged channels. 2. Highlight the desired channel using the UP and DOWN keys then press SELECT. 11:00 AM 21 - APR - 01 SELECT DISPLAY DATA FLOW RAINFALL PH RETURN Tabular or Graph Format 1. Highlight the desired display method using the UP and DOWN keys then press SELECT.
Appendix B Graph Manipulation Table 23 Graphing Functions and Descriptions Functions Description Status Bar Displays the time, date, measured value, and unit of measure at the intersection of the data cursor. Placing the cursor’s data on the status bar eliminates the need for X or Y axis labels and provides a larger graph viewing area. Moving the Data Cursor with the Arrow Keys The data cursor appears as a vertical line in the center of the graph.
Appendix B Options Menu Features 1. From the Main Menu, select OPTIONS. 11:00 AM 21 - APR - 01 OPTION MENU VOLUME CALIBRATION TIME / DATE ADVANCED OPTIONS READY TO START LEVEL ADJUST Optional Programs • Time and Date for internal real-time clock • Calibrate the sample volume • Advanced Features • Adjust level readings of optional integral flow meter Setting the Time and Date 1.
Appendix B Sensor Enabled When the sensor is enabled, and volume calibration is selected, a single manual calibration is taken. It does not matter if multiple volumes are programmed (such as when using stormwater or upset sampling). When the sensor is enabled, a single “Manual Calibration” choice provides sufficient information to adjust the sensor to all programmed volumes (see Table 24).
Appendix B When calibrating a Timed Rinse, the line is purged, then liquid is pumped toward the sensor. When the liquid reaches the predetermined point, press any key to stop the pump. The pump will reverse and purge the line. Timed Rinse Calibration Procedure—Sensor Disabled: 1. From the Main Menu, press OPTIONS. 2. Press VOLUME CALIBRATION. 3. Select Timed Calibrate and press SELECT. 4. Press START PUMPING. Wait while the pump purges the line, it will then start pulling liquid toward the pump. 5.
Appendix B Data Log From the Main Menu, select SETUP > ADVANCED OPTIONS > DATALOG. The sampler can record up to 116,000 readings from any or all input channels and store them in solid state, battery-backed memory for later viewing or retrieval. This option allows the selection of channels to log, how often to log, and how to treat the memory when it becomes full (Slate or Wrap).
Appendix B Power Save Mode. Selecting a five minute logging interval in Extended Power Mode causes a reading to be taken and logged every five minutes. All channels must share the same logging interval. Note: The Review All Items selection from the Setup menu indicates the maximum available logging hours for the channels and recording intervals you selected. The sampler calculates this information when the program is run using the RUN/STOP key.
Appendix B Slate Memory Mode Slate mode causes logging to stop when memory becomes full. The sampler continues to operate but no more data is logged. Use this mode to keep data from the beginning of the logging period. Wrap Memory Mode In Wrap mode, when memory becomes full, the oldest reading is discarded each time a new reading is taken. When memory becomes full, the sampler continues to operate and log data. This mode is best used when interested in the most recent data readings.
Appendix B Distributor Test The distributor positions the sample tube over the appropriate bottle during multiple bottle sampling. If the distributor arm is obstructed or if a problem exists with the distributor assembly, the arm will not position over the desired bottle correctly. This test assumes that 24 bottles are installed which is the most difficult to position for the distributor (the most stops and the smallest bottle mouth).
Appendix B LCD Test Display Test allows you to verify that all pixels in the Liquid Crystal Display (LCD) are functional. The LCD is made up of 14,400 pixels that are turned on and off as needed to create the display of graphics and text. Each individual pixel is turned on and off by its own transistor, which means that if a transistor failed, the pixel might not turn on, which could cause an unreadable or confusing display.
Appendix B Load Program From the Main Menu, select OPTIONS> ADVANCED OPTIONS> LOAD PROGRAM. The sampler stores up to five sets of program instructions. Each program consists of entries made in the Setup Menu and the Advanced Options Menu. The sampler is shipped with PROGRAM #1 as the loaded program. To see what program is currently loaded, press REVIEW ALL ITEMS in the Setup Menu. All program entries made in the Setup Menu and the Advanced Options Menu pertain to the currently loaded program.
Appendix B Flow Totalizer The Flow Totalizer consists of three numeric counters that keep track of the total flow being measured. Two software totalizers are standard with a third external mechanical totalizer as an option. The two software totalizers consist of a resettable totalizer and a non-resettable totalizer. Both totalizers are set to zero upon program start. Scaling multipliers are provided to allow tailoring of the totalizer response to meet the requirements of the application.
Appendix B Reset (Totalizer) The non-resettable totalizer will only be reset if one of the following conditions occur: • Change in totalizer scaling • Change in primary device • Change in totalizer units of measure • Start of new program Note: The totalizer cannot be reset manually. 1. Select RESET from the Totalizer menu. A confirmation message will be displayed. 2. Press YES to reset the totalizer or press NO to not reset the totalizer.
Appendix C Troubleshooting and Error Messages Error Messages Error Message Reason *****Warning!***** Logged data will be lost if you choose to continue? Yes/No. Making a program change when a program is halted. • • • A minimum of 4 points are required. The entered level value must be greater than the previous value. No values have been entered in the selectable table.
Appendix C Stormwater mode is not allowed when the sampler is configured with one bottle. Tried to enable Storm Water with a single bottle. The program cannot start: timed rinse required. Occurs if the liquid sensor is disabled and timed calibration has not been performed for the rinse cycle. The program cannot start: the primary device is not properly set up. If the operator goes partially through the flow meter setup screens but stops before entering all necessary parameters.
Appendix C Trouble Alarm Conditions, Causes, and Solutions Trouble Condition Cause Solution Low Main Battery Power supply voltage is less than 11 V dc. Change batteries. Memory Battery Internal memory battery voltage is too low. Change memory batteries. Low Slate Memory Free slate memory is less than 20%. RAM memory is almost full and will stop recording soon. Download data from unit, halt and restart the program or download data, halt, and change data to wrap mode.
Appendix C Downlook Ultrasonic Sensor Troubleshooting Problems RS485 Time Out—Did not get a reading with the specified time allotted. Loss of Ultrasonic as Level Measuring Device. U-Sonic Echo Loss—Flow Meter Not Receiving a Return Echo from the Ultrasonic Transducer. U-Sonic Failure—No Signal from the Ultrasonic Transducer. XDucer Ringing—False Return Echo mask Real Echoes. Causes CPU is having trouble communicating with the Ultrasonic board. Wait a few minutes and see if the condition goes away.
Appendix C pH Troubleshooting Symptom Possible Cause Solution • Meter continuously reads pH 14 or drifts above 14. Open circuit in either glass or reference electrode. • • • Temperature is constant or incorrect. Electrode won’t calibrate. Interface is wired wrong. Check interface wiring. Thermistor is open. Check interface wiring. Check for open at electrode RTD wire. Disconnect to make measurement. (Should read approximately 100–110 ohms.) Gain or offset error.
Appendix C Sigma 900 MAX Refrigerated Sampler Troubleshooting Issues Problem Cause Blown Fuse. Instrument Will Not Power Up With ac Power. Submerged Pressure Sensor level readings are inaccurate or no change in level readings. Check the 5-amp fuse on the back of the controller. Circuit breaker issue. Check the circuit breaker for the main power. Breaker is good, but still no power. Check to see if the outlet is receiving power. Breaker and outlet are good, still no power.
Appendix D How to Calculate Pulses/Counts The sampler is equipped to receive either a momentary dry contact closure or a +5 to +12 V dc pulse from a flow meter, where each pulse represents a known flow increment. For example, if the flow meter is set to send a flow pulse for every 1000 gallons of measured flow and the sampler can count 1 to 9,999 flow pulses between sample intervals, you can program the sampler to receive 10 pulses between samples to take one sample for every 10,000 gallons of liquid flow.
Appendix D 1. Determine the flow increment between samples: gallons- = 3,542 gallons/sample f = Q ---- = 85,000 -------------------------------------n 24 samples 2. Multiply the flow increment, f, by the pulse frequency output of the flow meter. 1 pulse 3,542 gallons/sample × --------------------------- = 70.84 pulse/sample 50 gallons Therefore, the value for INTV = _ _ _ _ CNTS is 71. Example 3 You want to collect 48 samples over a 16-hour period.
Appendix D Use the following examples to help you determine the value that you need to enter when programming for sampling based on counts. Example 1 You want to collect 24 samples over a 24-hour period on a 4–20 mA flow proportional basis. Average Flow Rate = 3.5 mgd (average flow rate over the 24-hour period) Maximum Flow Rate = 10 mgd a = 1440 minutes 1. Calculate Q. Average Flow Rate- = 3.5 mgd- = 0.
Appendix D 2. Calculate t. 1440 min - = 15 min/sample t = a --- = -----------------------------n 96 samples 3. Multiply Q x t x 10. 0.26 mgd × 15 min/sample × 10 = 39 Therefore, the value entered for INTV = _ _ _ _ CNTS is 39. Example 4 You want to collect 32 samples over an 8-hour period. Average Flow Rate = 70 gpm (average flow rate over the 8-hour period) Maximum Flow Rate = 210 gpm a = 480 minutes 1. Calculate Q. Average Flow Rate- = ---------------------70 gpm- = 0.
Appendix E Exploded Drawings Sigma 900 MAX Refrigerated Sampler Assembly Drawing (1 of 3) 12 11 1 10 2 3 4 5 9 6 8 7 Item Description Quantity Catalog Number 1 Hook and Loop Fastener 2 8791 2 Hook Fastener 1 8792 3 Battery Pack 1 8765 4 C-cell Battery 2 2709 5 Power Supply Cable Assembly 1 8783 6 Distributor Cable Assembly 1 8623 7 Nut 17 SE 301 8 Lock Washer 17 SE 306 9 Desiccant Bag 1 8849 10 O-ring (8606) Lubricant 1 SE 1048 11 Screw 17 SE 343 12
Appendix E Sigma 900 MAX Refrigerated Sampler Assembly Drawing (2 of 3) 17 16 1 2 3 15 4 14 13 12 11 5 6 7 10 8 9 Item Description QTY Cat. No. Item Description QTY Cat. No.
Appendix E Sigma 900 MAX Refrigerated Sampler Assembly Drawing (3 of 3) 1 17 2 3 16 4 15 14 Insert wires into motor terminals from the gearbox side. Solder wires directly to the motor terminals. Snip excess wire 13 12 11 5 10 9 8 7 6 Item Description 1 Sub Probe 2 Relay Option 3 Bubbler 4 pH/ORP 5 Gearbox Assembly (Cat. No. 8910) 6 Fuse Holder, 5 x 20 mm (Cat. No.
Appendix E Sigma 900 MAX Refrigerated Composite Sampler Assembly 1 2 3 4 5 9 8 7 6 Item Description Catalog Number 1 900 Refrigerated Sampler 2 120-V Transition Assembly 8924 3 Composite Refrigerator Sampler 8955 4 Grommet 2050 5 Sample Extension Fitting 8966 6 Composite Tube Support 7 Screw SE 724 8 Lock Washer SE 708 9 Washer SE 728 Page 140 Exploded Drawings 8971 8938 8990apdx_exploded.
Appendix E Sigma 900 Composite Refrigerator Assembly 1 2 3 4&5 10 9 8 6 7 Item Description Quantity Catalog Number 1 Plate 1 8979 2 Screw 3 SE 313 3 Screw 3 SE 312 4 Cable Feed-thru Fitting 1 8967 5 Sealant 1 SE 979 6 120-V Refrigerator 1 7686 7 Molded Fitting (Adhesive SE 1054) 1 8936 8 Screw 2 1519 9 Distributor Mounting Plate 1 8978 10 Standoff 3 1772 8990apdx_exploded.
Appendix E Sigma 900 MAX Refrigerated Discrete Sampler Assembly 1 2 3 8 7 4 6 5 Item Description Catalog Number 1 Sigma 900 MAX Refrigerated Sampler 8973 2 120-V Transition Assembly 8924 3 Steel Refrigerator 8959 4 Grommet 2050 5 Sample Extension Fitting 8966 6 Screw SE 724 7 Lock Washer SE 708 8 Washer SE 728 Page 142 Exploded Drawings 8990apdx_exploded.
Appendix E Sigma 900 Discrete Refrigerator Assembly 1 2 3 4&5 6 18 7 17 16 8 9 10 15 14 13 12 11 Item Description QTY Cat. No. Item Description QTY Cat. No.
Appendix E Transition Tray Assembly 1 21 20 2 19 18 6 3 4 7 17 5 8 16 15 14a or 14b 9 10 11 13 12 Item Description QTY Cat. No. Item Description QTY Cat. No.
Appendix E 110 cm (43.5”) ref. Sigma 900 MAX Refrigerated Sampler Reference Dimensions 61 cm (2 4” 8990apdx_exploded.fm )r ef. 61 cm ”) (24 .
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GENERAL INFORMATION At Hach Company, customer service is an important part of every product we make. With that in mind, we have compiled the following information for your convenience. 8990gen_info.
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Parts and Accessories Description Part Number 3-way Splitter Assembly ........................................................................................................................................ 939 4–20 mA Interface, 10 ft Cable............................................................................................................................ 2021 Cascade Sampling for 25-ft Cable ..........................................................................................................
Parts and Accessories Base/Bottle, Composite/Multiple Sampling Accessories Part Number Sampler Composite Multiple Bottle Bottle Type Bottle Full Bottle Shut-Off Tube Support Extension Tube Bottle Tray/Positioner Retainer Distributor 2.5 gal Glass 6559 8847 8986 3527 N/A N/A N/A 3 gal Poly. 1918 8847 8986 3527 N/A N/A N/A 6 gal Poly. 6494 8847 8986 N/A N/A N/A N/A (24) 1 L Poly.
Parts and Accessories Depth Measurement Sensors Option Description Ultrasonic Sensor 40 kHz Part Number Factory Installed Integral Ultrasonic Flow Meter Option 8851 40 KHz Range 0-10 ft, with 25-ft cable 3028 Ultrasonic Sensor with Horn, 40 KHz, with 25-ft cable 4008 Ultrasonic Sensor, CSA Approved for Class I, Division I, Groups A, B, and D Hazardous Locations; with 50-ft cable 4010 Ultrasonic Sensor, 40 KHz, Range 0-10 ft, with 25-ft cable with bare lead ends 2653 Junction Box for ultrasonic
Parts and Accessories Submerged Depth Only Sensor Mounting Band for 15–42 in. Pipes 15 9706100 1771 18 9706200 1771 21 9706300 1771 24 9706400 1771 27 9706500 1771 30 9706600 1771 33 9706700 1771 36 9706800 1771 42 9706900 1771 Option Description Part Number Insertion Tool To remove P/N 1361–1370 mounting rings.
Contact Information for U.S.A. and Outside Europe Ordering Information for the U.S.A. By Mail: Hach Company P.O. Box 389 Loveland, Colorado 80539-0389 U.S.A By Telephone: (800) 635-4567 By Fax: (970) 461-3915 Ordering information by E-mail: orders@hach.
Contact Information for Europe For technical support, repair service, and ordering information please refer to the contact information below for your specific country. Belgium Lange Group Ragheno Business Center 2 Motstraat 54 B-2800 Mechelen Tel.: ++32/(0)15 42/ 35 00 Fax: ++32/(0)15 41/ 61 20 email: email@example.com Denmark Dr. Lange Danmark A/S Jernhoolmen 34-40 DK-2650 Hvidovre Tel.: ++45/(0)36 77/ 2911 Fax: ++45/(0)36 77/ 4911 email: firstname.lastname@example.org www.drlange.de Poland Dr. Lange Sp. z o.o. ul.
Warranty Hach Company warrants this product to the original purchaser against any defects that are due to faulty material or workmanship for a period of one year from date of shipment. In the event that a defect is discovered during the warranty period, Hach Company agrees that, at its option, it will repair or replace the defective product or refund the purchase price, excluding original shipping and handling charges.
Index Numerics 4-20 mA Option ..................................................... 87 Calibration ...................................................... 88 Connection ..................................................... 87 Interface Connector ........................................ 87 Programming .................................................. 87 Pulse Duration Input ..................................... 133 A ac Power ............................................................. 124 Access Code ....
Index E Eight-, 12-, or 24-bottle Sampling ......................... 28 Electrostatic Discharge ......................................... 99 Error Messages ................................................... 127 Extended Power Mode ........................................ 119 F First Flush Bottles ................................................. 55 Flow Totalizer ...................................................... 125 Flow Units .....................................................
Index Receptacle Caps ................................................... 18 Reliable Communications ..................................... 82 Reporting Devices ................................................. 85 Reset (Totalizer) ................................................. 126 Retainers ............................................................... 26 Review All Items ................................................. 113 RS232 Connection .....................................................