MICRO 200 BW TURBIDIMETER RANGE 0 - 10 AND 0 - 100 NTU HF scientific, inc. 3170 Metro Parkway Ft. Myers, FL 33916-7597 Phone: (239) 337-2116 Fax: (239) 332-7643 www.hfscientific.com CATALOG NO. 21652 (05/05) Rev. 3.
MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
FOREWORD HF TURBIDIMETERS HF turbidimeters are manufactured to meet design criteria for nephelometers as described in Standard Methods For Examination of Water and Wastewater. HF turbidimeters are approved by the U.S. EPA* as a means to measure the turbidity of potable water, waste water, and other liquids. HF turbidimeters provide a linear display of turbidity, throughout all ranges, in Nephelometric Turbidity Units (NTU).
MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
DECLARATION OF CONFORMITY Application of Council Directive: 73/23/EEC Standard to which Conformity is Declared: Product Safety UL3111-1 CSA-C22.2 No.1010-1-92 CE EN61010-1 Immunity EN50082-1 IEC801-2 IEC801-3 IEC801-4 EMI EN55011 Group 1 Class A FCC Part 15 Class A Manufacture’s Name: HF scientific, inc. Manufacture’s Address: 3170 Metro Parkway, Fort Myers, Florida 33916-7597 Importer’s Name: Importer’s Address: Type of Equipment: Turbidimeter Model No.
MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
DECLARATION OF CONFORMITY Application of Council Directive: 73/23/EEC Standard to which Conformity is Declared: Product Safety UL3111-1 CSA-C22.2 No.1010-1-92 CE EN61010-1 Immunity EN50082-1 IEC801-2 IEC801-3 IEC901-4 EMI EN55011 Group 1 Class A FCC Part 15 Class A Manufacture’s Name: HF scientific, inc. Manufacture’s Address: 3170 Metro Parkway, Fort Myers, Florida 33916-7597 Importer’s Name: Importer’s Address: Type of Equipment: Backwash Sensor and Interface Kit Model No.
MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
MICRO 200 BW TABLE OF CONTENTS 1.0 1 IMPORTANT INFORMATION ...................................................................................................................................... 1.1 1.2 1.3 1.4 1.5 1.6 HOW TO USE THIS MANUAL ...................................................................................................................... 1 SPECIAL ENVIRONMENTAL CONSIDERATIONS ...................................................................................... 1 SPECIFICATIONS .......
MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
MICRO 200 BW TABLE OF CONTENTS CONT. 5.0 ROUTINE MAINTENANCE .................................................................................................................................................. 26 5.1 CUVETTE CLEANING & CARE .................................................................................................................... 26 5.2 LAMP REPLACEMENT ..................................................................................................................................
MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
1.0 IMPORTANT INFORMATION 1.1 HOW TO USE THIS MANUAL The equipment has been designed for simple and easy operation. In keeping with that philosophy, this MICRO 200 BW User’s Manual has been written to simplify all steps in the procedures that follow. THE MOST IMPORTANT ASPECT OF THIS MANUAL IS THAT YOU, THE USER, READ IT IN ITS ENTIRETY AND REFER TO IT OFTEN. Figures and drawings have been used throughout the manual to show you how and text has been used to enhance and clarify what you have been shown.
1.3 SPECIFICATIONS FOR THE MICRO 200 BW Specification Ranges: MICRO 200 BW 0 - 10.0000 NTU & 0 - 100.00 NTU Method: Accuracy±: EPA approved* Nephelometric 1% of reading or 0.005 NTU (whichever is greater) 10 NTU range 100 NTU range Repeatability: 2% of reading 1 - 40 NTU, 5% of reading 40 - 100 NTU 1% Linearity+: Resolution: 0 to 10 NTU 1 to 100 NTU 0.0001 0.
1.3 SPECIFICATIONS FOR THE MICRO 200 BW CONTINUED Specifications Shipping Weight: Warranty: Micro 200 BW Approximately 15 lbs. (6.8 kg) One year from date of shipment Backwash Sensor - Optional: Backwash Sensor: Sensor operating depth: Standard cable lengths Sensor to Backwash/Interface: Interface to Analyzer : Maximum cable lengths Sensor to Backwash/Interface: IR sensor measures 0 - 100% Transmittance 16 psi (32 ft.: 9.
1.5 FIGURES Figure No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Title Page No. Desiccant Tray Installation ......................................................................................... 6 Analyzer Outline Dimensions ..................................................................................... 7 Turbidity Sensor Outline Dimensions ......................................................................... 7 Installation Diagram .................................
1.6 COMPLIANCE TESTING CERTIFICATION The Micro 200 BW has undergone extensive testing, therefore, HF scientific, inc. certifies that this instrument has met the following standards. Product Safety US standard tested by ETL testing labs to UL 3111 Canadian Standard tested by ETL to CSA 1010.
2.0 INSTALLATION LCD brightness may be required during this period. 2.1 PACKING LIST FOR THE MICRO 200 BW CONTENTS 2.3.1 Analyzer The location of the analyzer should be given careful consideration. As an example, if the MICRO 200 BW is to be used for performing backwash, the analyzer must be mounted where it can be viewed at the backwash control station. In this example, for convenience of maintenance, the turbidity sensor should be mounted at the backwash station and have the water plumbed to it.
Figure 2 Analyzer Outline Dimensions 8.062 XX.XX=INCHES (205) (XX)=mm LAMP LAMP MODULE HF HF# # 21541 21541 MODULE 9.802 (249) 2.000 (51) 1.000 (25) 8.780 5.820 (225) (148) Figure 3 Turbidity Sensor Outline Dimensions MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
Figure 4 Installation Diagram MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
however, replacement of the desiccant pack will be required from time to time. To determine the condition of the desiccant, check the included humidity indicator card. If required, a new sealed desiccant pouch and indicator card are available from HF scientific inc. part #21555R. It is essential that all enclosure seals be maintained. The emergency drain and o-rings that are supplied with each new instrument form part of the instrument humidity Figure 1 seal.
2.4.2 Analyzer Power The power cord (120V) provided is 6 feet (1.83 meters) long. The analyzer power requirement is 40 VA at either 120 VAC or 240 VAC. The voltage setting of the analyzer can be determined by removing the access cover and looking at the fuse cartridge, just to the left of the power cord receptacle. The voltage printed next to the two triangles that point toward each other indicate the selected voltage. To change the input voltage first remove the power cord.
tempting to make connections or disconnections from alarm terminal blocks. The SENSOR ALARM contacts are provided to indicate that the source lamp in the sensor module has failed or that the MICRO 200 BW requires routine standardization. NOTE: For external analyzer connection, other than power, #14 AWG is the largest wire the connecting terminals will accept. 2.4.8 Cable Mounted Ferrites The interconnect cable has a cable mounted ferrite on it, located near the analyzer.
particles in suspension (turbidity). The optical signal from the photodiodes is amplified and then converted to a frequency. This frequency is dependent upon the NTU level of the sample in the sample well. The resultant signal is sent to the analyzer where it is linearized for presentation on the display. All operator controls are located on the front panel of the MICRO 200 BW. Complete displays include LCD indicators which blink in the event of an alarm of the two user set alarms and a sensor alarm.
3.2.1 Turbidity Display 6 9 5 1 8 7 3 F1 -------------- --------------- --------------- ---------------------------------- F2 -------------------- F3 F4 -------------------............ ....................... ................................................ ................. -------------------- 2 Menu 4 This is the turbidity display. The display shown above is fairly typical. The display has the following parameters: 123456789- CURRENT TURBIDITY READING: 0.
3.2.2 Main Menu MAIN MENU 10NTU TURBIDITY SENSOR SETUP... F1 F4 F2 ALARMS SETUP... F3 DISPLAY PARAMETERS... MONITOR SETUP... Menu VER:M200NTUBW-8A23E This is the main menu. It is the starting point for all sub-menu selections. Shown below are all function key selections and their purpose.
3.2.3 Sensor Setup - By Pressing from Main Menu SENSOR SETUP 10NTU TURBIDITY F1 F4 F1 SENSOR 1∅NTU TURBIDITY F2 DIGIT SUPPRESS ∅ F3 NORMAL CAL... NTU FULL SCALE CAL... Menu VER:M200NTUBW-8A23E This is the Sensor Setup menu. As shown above, the cursor is highlighting 10 NTU Turbidity when you enter this menu. This parameter can be changed to 100 NTU Turbidity or Backwash. Note: Backwash only functions if you purchased the optional backwash hardware.
3.2.3 Sensor Setup - Continued To perform calibration on any cal point, move the cursor using the appropriate "F" key to highlight the Hz column and then push one of the keys. By pressing F1 in Normal Cal... menu. - Turbidity NORMAL CAL 10NTU TURBIDITY CAL POINT 1 ∅.∅2∅∅NTU 237HZ CAL POINT 2 4.∅∅∅∅NTU 4114HZ CAL POINT 3 1∅.∅∅∅∅NTU 97737HZ OFFSET LEVEL ∅ .∅∅∅∅ ∅∅∅∅ ∅.∅∅∅∅ ∅∅∅∅ NTU By pressing F4 in Normal Cal... menu.
3.2.4 Alarm Setup - By Pressing from Main Menu ALARMS SETUP 10NTU TURBIDITY F1 F4 F2 ALARM 1 ∅.55 HI 2.5% F2 ALARM 2 ∅.1∅ LOW 5.∅% F3 FLOW ALARM 15 SEC ACCESS CODE OFF F3 F1 F2 Menu VER:M200NTUBW-8A23E This is the Alarm Setup menu. The left side of the screen shows the selections described below. The main screen shown above, shows the current settings. To highlight the different parameteres in the same row, use the "F" key to the left of the row you want to change.
3.2.4 Alarm Setup - Continued By pressing F3 ALARM 1 SETUP 10NTU TURBIDITY in Alarm Setup Menu. - Turbidity/Backwash ALARM 1 ∅.55 HI In this menu you can see the Flow Alarm Retention Time, which is the time required before the Analyzer will acknowledge the alarm with a blinking "FLOW AL!" error message on the measurement screen. This is also the retention time to return to normal operation. The retention times aavailable aree 15 sec, 90 sec, 180 sec or OFF.
3.2.5 Display Parameters - By Pressing F3 from Main Menu DISPLAY PARAMETERS 10NTU TURBIDITY BRIGHTNESS 2∅ F1 F2 UPPER/LOWER LIMITS 1.∅∅ ∅.∅∅ F3 TIME BASE. 24HR SIGNAL AVERAGING 6∅SEC F4 Menu VER:M200NTUBW-8A23E This is the Display Parameters menu. The left side of the screen shows the selections described below. The main screen shown above, shows the current settings. To highlight the different parameters in the same row, use the "F" key to the left of the row you want to change.
3.2.5 Display Parameters - Continued By pressing F3 inside the Display Parameters menu. - Backwash In this menu the time base, which establishes the time increments on the measurement graph can be highlighted, but there is only one time base available, 15MIN. DISPLAY PARAMETERS BACKWASH BRIGHTNESS 2∅ UPPER/LOWER LIMITS 1.∅∅ ∅.∅.∅ TIME BASE. 15MIN SIGNAL AVERAGING 6∅ SEC VER:M200NTUBW-8A23E By pressing F4 inside the Display Parameters menu.
3.2.6 Monitor Setup - By Pressing F1 from Main Menu MONITOR SETUP 10NTU TURBIDITY F1 TIME/DATE 1∅:∅∅ MAR ∅4 1998 F2 SELECT D TO A 4-2∅MA F3 CURRENT/VOLTAGE ADJUST 4.∅∅ 2∅.∅∅ ∅.∅∅ 1∅.∅∅ COMMUNICATIONS... F4 Menu VER:M200NTUBW-8A23E This is the Monitor Setup menu. The left side of the screen shows the selections described below. The main screen shown above, shows the current settings. To highlight the different parameteres in the same row, use the "F" key to the left of the row you want to change.
3.2.6 Monitor Setup - Continued By pressing F2 MONITOR SETUP 10NTU TURBIDITY TIME/DATE 1∅:∅∅ MAR ∅4 1998 in the Monitor Setup menu. In this menu the digital to analog converter can be set to output a 4-20mA signal or a 0-10 Volt signal using the keys. The D to A automatically calibrates to the upper and lower limits you selected in the Display Parameters menu. SELECT D TO A 4-2∅MA CURRENT/VOLTAGE ADJUST 4.∅∅ 2∅.∅∅ ∅.∅∅ 1∅.∅∅ COMMUNICATIONS... VER:M200NTUBW-8A23E By pressing F3 in Monitor Setup menu.
3.2.6 Monitor Setup - Continued By pressing F3 in the Communications menu. In this menu an address may be assigned to a particular instrument. You may select the address from ∅ to F, Hexadecimal by using the keys. COMMUNICATIONS 10NTU TURBIDITY BAUD 96∅∅ PRINTER ON ADDRESS 1 REPORT 4HR VER:200NTUBW-8A23E By pressing F4 in the Communications menu. In this menu you can select two time periods that a report can be sent to the printer. You can choose a report every four hours or every 24 hours.
3.2.7 Backwash Display 9 6 5 1 8 7 3 F1 F2 F3 F4 Menu 15 2 4 This is the backwash display. It is only meaningful if the Backwash option is connected. The screen above shows a typical backwash cycle. In this mode, updates are made to the screen every 6 seconds. The reading is updated every second. The display shows the following parameters: 1CURRENT %T READING: 97.
3.3 START UP Before placing the MICRO 200 BW on line we recommend that you standardize the instrument. The following sections describe the required procedures. 3.3.2 Standardizing The calibration standard (cuvette) supplied with the MICRO 200 BW is a pure liquid sealed in glass. It has a value of 0.02 NTU. 3.3.1 Indexing The United States Environmental Protection Agency (U.S. EPA) recommends that cuvettes used for instrument calibration or sample measurement be indexed.
the desiccant on a quarterly basis or if after cleaning the cuvette readings appear erroneously high to ensure proper operation of the vaporpurge feature. It is important to keep a cover on the sample well if the flow through head is out for more than a few minutes, to avoid saturating the desiccant uselessly. A replacement desiccant pouch is available from HF scientific or your local representative HF part# 21555R. See figure 1 on page 6 when replacing the desiccant.
Figure 12 Vaporpurge MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
oughly 8 to 10 rinses in clean, distilled water, to remove all streaks. Shut-off clamp Back Pressure Valve Figure 14 Lamp Replacement 5.3 CALIBRATION PROCEDURES 5.3.1 Calibration Standards Figure 13 Critical Measurement Area 5.3.1.1 Standard Set (optional) Catalog No. 19820 The sample flow must be shut off, with the shutoff clamp on the inlet flexible tubing, when the cuvette in the flow through unit is to be cleaned or changed (see figure 14).
It is well known that diluted Formazin is unstable. If Formazin is used to calibrate the instrument ensure that a fresh stock suspension is used. Formazin stock suspension can be prepared by the user (Reference Standard Methods For Examination of Water and Wastewater) or a kit can be purchased from, HF scientific, inc., Catalog No. 50040. NOTE: When the prepared samples start to flocculate, they are unreliable and fresh ones must be made.
8. Press the . The Frequency at the time of this selection is saved as the calibration frequency for the 40 NTU standard. This frequency is displayed in the right hand column. 9. Insert the Calibration Standard. 10. Rotate the Calibration Standard to its index point. If the standard has not been indexed, see page 25. 11. Press the F1 key twice to highlight the frequency for Cal point 1. 12. Press the . The frequency for the 0.02 NTU standard is saved. This frequency is displayed in the right hand column.
7.0 TROUBLESHOOTING 7.1 GENERAL NOTES Service and technical support are available from the manufacturer, HF scientific inc. from 8:00 AM to 4:00 PM Eastern Standard Time. The following Table will supply fundamental troubleshooting information. The Guide assumes that the controls and functions of the instrument are used correctly. The intention of the guide is to eliminate common faults, not to troubleshoot down to component level. GUIDE TO FUNDAMENTAL TROUBLESHOOTING SYMPTOM SOLUTION Display not lit. 1.
7.2 SPARE PARTS LIST FOR MICRO 200 BW CATALOG NO.
When choosing an installation site for the sensor there are several things to consider. Since filters rarely will backwash consistently or uniformly, a site should be chosen that best averages the backwash water over the cycle. The sensor should also be located as close to the backwash filter as possible to reduce the time delay of the water sample. This will give the operator a correct picture as to how the backwash is proceeding and when it is complete. Refer to figure 20 for sensor outline dimensions.
this point the outer jacket of the cable should be stripped back about three inches. Care must be used to not nick the wires under the jacket. Note that the sensor cable is composed of two pairs of wires. Each pair consists of two insulated wires and an uninsulated shield wire, wrapped individually in a foil shield. The wire pairs are RED & BLACK and WHITE & BLACK. The foil can be unwrapped and removed, while keeping the pairs together. The two shield wires should be wrapped together.
contacts are still connected and active unless set to OFF in either of the modes. 8.5.1.3 Analog Outputs Analog outputs of either 4-20 mA or voltage are available. If you select voltage you may choose 0-10V, 0-1V or 0-100mV. This analog output will be shared by both modes and will automatically recalibrate to the selected mode. 8.5.1.4 Serial Port (Optional) If a serial port is connected the readings will report in NTU while in the turbidity mode and will report in %T while in the backwash mode. 8.5.
4-21/64 (110) 8-13/16 (224) 7-3/32 (180) 3-35/64 (90) Figure 16 Backwash Interface Outline Dimensions Figure 17 Backwash Interface Voltage Selection MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
4-21/64 (110) 8-13/64 (224) 7-3/32 (180) 3-35/64 (90) Figure 18 Junction Box Outline NOT USED CABLE PAIR CABLE PAIR 2-SHIELD WIRES 2-SHIELD WIRES FROM SENSOR TO ANALYZER CABLE PAIR CABLE PAIR MOUNTING HOLES 4-PLACES NOTES: USE ONLY 2-PAIR SHIELDED CABLE TYPE 6052C. Figure 19 Junction Box Wiring Diagram MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
XXXX=INCHES (xx)=mm 7-21/32 (194) 5-7/16 (138) 5-1/8 5-21/32 (144) (130) 3.0 DIA. (76) Figure 20 Backwash Sensor Outline Dimensions SENSOR CABLE TO ANALYZER TAKES 1-1/2 IN. PVC PIPE SST HOSE CLAMPS SENSOR MOUNTING CHAMBER BRACKET SENSOR CABLE TO ANALYZER Figure 21 Backwash Channel Mounting MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
SENSOR CABLE TO ANALYZER PIPE(NOT SUPPLIED IN KIT) EXTENSION HANDLE MOUNTING KIT SENSOR INLET BAFFLE OUTLET BAFFLE OUTLET BAFFLE INLET BAFFLE TO CONTROL UNIT BACKWASH TROUGH FILTER BED Figure 22 Backwash Extension Handle Mounting MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
8.0 OPTIONS - Continued SERIAL INTERFACES 8.6 SERIAL INTERFACES Each of these options maybe installed by removing the rear cover of the analyzer as shown in figure 8 on page 10 and plugging in the interface as shown in figure 23. By selecting “Printer on” via the Main Menu, Utility Menu and the COMM Port menu, the MICRO 200 BW will transmit each reading, in real time. This mode is used to drive a printer for raw data collection.
to the RS-232 Standard Voltage Mode Interface except that it transmits in a “Balanced” mode, in one direction, at one time (half-duplex). This balanced mode makes it less susceptible to noise. It also maybe “hubbed” or connected each one to the next. It is important the most remote interface, and only it, should have it’s switch “closed” to properly terminate the network. Please consult HF scientific, inc. for more specific information. See figure 25 on page 42. 8.6.
ADDRESS #1 ADDRESS #N RS232 INTERVENING RS232 VOLTAGE UNITS VOLTAGE 1ST OR HUB LAST OR STAR 1 4 5 S H I E HOST TXD CPU GRD 1 8 RXD TXD 4 5 S H I E 8 GRD RXD L D L D RXD GRD TXD "BUS" OR "BACKBONE" Figure 24 RS-232 Voltage Connection ADDRESS #N ADDRESS #1 RS485 1ST OF HUB OR STAR B GRD (SHIELD) Figure 25 RS-485 Connection Page 42 GRD A B A B A MICRO 200 BW 0-10 & 0-100 NTU (05/05) Rev. 3.
WARRANTY HF scientific, inc., as vendor, warrants to the original purchaser of the instruments to be free of defects in material and workmanship, in normal use and service, for a period of one year from date of delivery to the original purchaser. HF scientific, inc.’s, obligation under this warranty is limited to replacing, at its factory, the instrument or any part thereof.
GLOSSARY Alarms: Relay outputs that change when an alarm setpoint has been exceeded. Backwash: A method of measuring the transmission of filter backwash water. Baud: Rate of transfer of serial information. Calibrate: Electronic adjustment of the instrument to known standards. Cursor: The LCD pointer indicating which digit or figure will change. Cuvette: Glass container used to hold the sample to be measured. It is placed in the optical well of the turbidimeter.
Date: August 3, 2004 Revision: 10 SECTION 6 REACTIVITY DATA MATERIAL SAFETY DATA SHEET HF scientific, inc. 3170 Metro Parkway Fort Myers, FL 33916-7597 (239) 337-2116 Mon-Fri 8:00 am - 4:30 pm 24 Hour Emergency Telephone Number CHEMTREC 1-800-424-9300 SECTION 1 PRODUCT IDENTIFICATION PRODUCT NAME: 100 %T STANDARD SOLUTION, 0.02 NTU PRIME TIME STANDARD, REFERENCE STANDARD, 0.02 NTU 250 ML PRIMARY STANDARD, and 0.02 NTU 1GALLON PRIMARY STANDARD, WATER - INCLUDING H2O PRIME TIME STANDARD.
