Bench-Top Meters 860031, 860032, 860033 Instruction Manual 1
Bench-Top Meters 860031, 860032, 860033 Copyright ©2009 by Sper Scientific ALL RIGHTS RESERVED Printed in the USA The contents of this manual may not be reproduced or transmitted in any form or by any means electronic, mechanical, or other means that do not yet exist or may be developed, including photocopying, recording, or any information storage and retrieval system without the express permission from Sper Scientific. 7720 E. Redfield Rd.
TABLE OF CONTENTS INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . 6 FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 POWER SUPPLY . . . . . . . . . . . . . . . . . . . . . . . 8 METER COMPONENTS . . . . . . . . . . . . . . . . . . 9 LCD DISPLAY. . . . . . . . . . . . . . . . . . . . . . . . . . . 12 KEYPAD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 REAR PANEL. . . . . . . . . . . . . . . . . . . . . . . . . . . 14 SETUP MODE. . . . . . . . . . . . . . . . .
TABLE OF CONTENTS PH PROBE CALIBRATION. . . . . . . . . . . . . . . . . . . . 29 CONDUCTIVITY PROBE CALIBRATION. . . . . . . . . 31 TDS CALIBRATION. . . . . . . . . . . . . . . . . . . . . . . . . 36 SALT CALIBRATION. . . . . . . . . . . . . . . . . . . . . . . . . 37 MEASUREMENT PROCEDURES . . . . . . . . . . . . . 38-49 Preparing for Measurement. . . . . . . . . . . . . . . . 38 Hold Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 pH Measurement . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS ERROR CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 PC CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . 57 APPENDICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 OPTIONAL ACCESSORIES . . . . . . . . . . . . . . . . . . . 65 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 67 WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION Sper Scientific is pleased to offer the following line of bench -top meters: Model 860031 (pH/mV) Model 860032 (Conductivity/TDS/Salinity) Model 860033 (Water Quality) Please note that the meter itself is identical in each of the above models. Each model can be used for pH/mV, Conductivity/TDS/Salinity or Water Quality depending on the probe used. To utilize your meter under additional parameters, please refer to the list of probes in OPTIONAL ACCESSORIES on page 65.
FEATURES Multi-display LCD screen Automatic buffer recognition 5 point pH calibration Hold function Maximum and minimum Reliable, replaceable probe with temperature compensation Easy to view probe calibration data “Ready” icon on LCD display indicates stability for reading PC connection for online logging and uploading 99 memories for analysis Automatic or manual temperature compensation Analog output for chart recorders 7
POWER SUPPLY The meter is powered by a 9 Volt DC adapter (included). The plug of the adaptor is USA type; you will need to purchase a plug converter if using the meter outside of the US. Plug the adaptor into the power port labeled “DC,” located on the rear of the meter.
METER COMPONENTS Meter Drawer A built-in drawer is located on the bottom of the bench-top meter. Pull the drawer out and use to store notes and other important reference data. Probe Holder The probe holder is composed of two parts: the base and arm. Holder assembly does not require tools. The maximum swing angle is 70° and the maximum height of the holder is 378 mm.
METER COMPONENTS Holder Disassembly 1. Turn the base upside down. 2. Use a cylindrical object with an approximate 12 mm diameter to push the arm out of the base. Attaching Holder to the Meter After assembling the holder, attach the holder to the meter. 1. Find the two holes on the bottom of the meter that are used to hold the base. 2. The holder can be attached to the right or left side of the meter.
METER COMPONENTS Locate the two holes at the bottom of the meter. The cylindrical knob on the holder base is designed to fit into the hole on the bottom of the meter. The holder can hold up to 4 probes. The wire of the probe can be fixed to the arm. Turn clockwise to lock the holder into place. Turn counterclockwise to adjust the holder up and down.
LCD DISPLAY Primary Data Screen displays pH, mV, ORP, Conductivity, TDS or Salinity value. Icons CON, TDS, SALT, ORP, pH, mV indicate the parameter displayed. Icons ppt, ppm, mg/l, mS, µS, kPA, or mmHg indicate the unit of measure displayed. READY indicates the reading is stable. AUTO indicates auto-ranging function. MAX, MIN indicate a maximum or minimum memory value. HLD Holds the current reading on the display. REC indicates the meter is in recall mode. MEM indicates the current measured value is saved.
KEYPAD POWER/SET Press to turn the meter on/off. Press and hold for more than 1 second to enter SET Mode. The meter will default to the last mode used when turned off and back on. CAL/ESC Switch between NORMAL and CALIBRATION Mode. Press to enter manual temperature setting. In Calibration, Setting or Recall Modes, press to return to Normal Mode. HLD/REC Press to freeze the reading. Press again to release. Press for more than 1 second to switch between NORMAL and RECALL Modes.
REAR PANEL The bench-top meter provides a complete set of input connectors for various commonly-used accessories: Connection Function DC Connection of the AC to DC adaptor power supply RS232 Connection of a RS232 or USB cable to a computer to capture online or stored data MIC Conductivity probe input GND (I) Earth ground jack inputs (standard tip connectors) GND (II) ANALOG Strip chart recorders input. Use subminiature plug with positive tip. BNC The port accepts pH, ORP with a BNC connector.
SETUP MODE The advanced Setup Mode allows you to customize the following meter preferences and defaults: Memory Transmission Clear Memory Slope and Offset (pH) or Calibration Review (Conductivity) Buffer Solution (pH) or Cell Constant (Conductivity) Temperature Setting (pH) Ready Function Temperature Units Real Time Clock Reset To enter Setup Mode, press SET for more than 2 seconds while the meter is in Normal Mode. Note...
SETUP MODE software associated with this feature. 2. Press SET for 2 seconds to enter setup. “TR” appears on the middle of the LCD display and P1.0 appears under “TR.” 3. Press . “OUT” flashes on the upper display and P1.1 appears under “OUT.” This indicates that memories are transferring. After transmission, the LCD will return to P1.0. Note.. The meter can store up to 99 records for each parameter.
SETUP MODE 4. Press to enter step P2.1. The default “NO” icon flashes on the middle display and P2.1 appears in the lower display. 5. Press ▲ to change the status from “NO” on the display to “YES” and then press again to confirm clear memory. The LCD will return to P2.0 when all memories are deleted. CAUTION: THE MEMORY CLEAR PROGRAM IS DESIGNED TO CLEAR 99 MEMORIES AT ONE TIME. PLEASE CAREFULLY CONSIDER IF YOU WANT TO CLEAR THE MEMORY AS THIS OPERATION CANNOT BE REVERSED.
SETUP MODE View Slope & Offset (pH Probe) 1. Press MODE to select the probe type as pH. 2. Press SET for 2 seconds to enter setup. 3. Press ▲ until “ELE” appears in the middle display and P3.0 appears in the lower display. 4. Press to enter P3.1, the LCD displays one of four available slope values; P3.1, P3.2, P3.3, P3.4. If the value is less than 75% or more than 115%, change the probe immediately. 5. Press to enter P3.2, P3.3, and P3.4. Note...
SETUP MODE 6. Press to enter P3.5 and view the offset value. The offset value is the mV value of pH 7 (default 0.0). The offset value will be different after calibration. If the value is outside the range of ± 60 mV, replace the probe. Calibration Review (Conductivity Probe) This feature allows you to review which range has been calibrated and the last calibration value. The program reviews the probe calibration data of Conductivity, TDS or SALT.
SETUP MODE 4. Press to enter P3.1. Press P3.3, P3.4, P3.5. to enter P3.2, 5. Press ESC to return to P3.0. 6. Press ESC to return to Normal Mode. The default values are: pH Calibration Buffer (pH Probe) This meter allows the selection of two different types of pH buffers: NIST or CUSTOM. Selection of the proper buffer more accurately calibrates the probe to specific requirements. NIST buffer: (five settings) pH 1.68, 4.01, 6.86, 9.18, 12.45 CUSTOM buffer: (five ranges) pH 1.00~3.00, 3.50~5.50, 6.00~8.
SETUP MODE Select Buffer 1. Press SET for 2 seconds to enter setup. 2. Press ▲ to select pH buffer. “BUF” appears on the middle of the LCD and P4.0 appears on the lower portion. 3. Press to enter P4.1. The default “NIST” will flash on the LCD and P4.1 will appear on the lower portion of the display. If you use NIST buffers, press to confirm and the meter returns to P4.0. 4. If your requirement is not for NIST buffers, press ▲ to change the status to CUSTOM buffer. 5.
SETUP MODE 6. Press ESC to return to Normal Mode. Cell Constant (Conductivity Probe) To view the probe data (cell constant) of each range: Note… If the range is not yet calibrated, the LCD will display the default value (1.000). 1. Press MODE to select the probe program. 2. Press SET for 2 seconds to enter setup. 3. Press ▲ to select CELL. “CELL” will appear on the middle of the LCD and P4.0 will appear on the lower portion. 4. Press to enter P4.1. Press P4.3, P4.4, P4.5. to enter P4.
SETUP MODE Temperature Setting (Conductivity Probe) Use this program to set the temperature parameters and TDS conversion factors. 1. Press MODE to select the probe program. 2. Press SET for 2 seconds to enter setup. 3. Press ▲ to select COEF. “COEF” will appear on the middle of the LCD and P5.0 will appear on the lower portion. 4. Press to enter P5.1. The default “Auto” flashes on the middle of the LCD and P5.1 will appear on the lower portion.
SETUP MODE P5.2 will appear on the lower portion. 6. To adjust the temperature coefficient from 2.1, press ▲ or ▼. Press to confirm and enter P5.3. Note… When using Manual Temperature Compensation Mode (MTC), you must set the temperature solution in P5.3. 7. At P5.1, press twice to enter P5.3. The default “25.0” flashes on the middle of the LCD and P5.3 will appear on the lower portion. To adjust the solution temperature setting, press ▲ or ▼. 8. Press to confirm and enter P5.4.
SETUP MODE ▼ to adjust the value. Press to P5.0. to confirm and return Ready Icon This feature enables/disables the “READY” icon, which indicates that the measured reading is stable. 1. Press SET for 2 seconds to enter setup. 2. Press ▲ to select “READY” on the display. P6.0 will appear on the lower display. 3. Press to enter P6.1. “YES” will flash on the LCD display and P6.1 will appear on the lower display. 4. Press ▲ to switch between YES or NO. 5. Press to confirm and return to P6.0. 6.
SETUP MODE Temperature Units To select either Celsius or Fahrenheit temperature scale: 1. Press SET for 2 seconds to enter setup. 2. Press ▲ to select “unit” on the upper display. P7.0 will appear in the lower portion of the display. 3. Press to enter P7.1. The last selected unit “C” or “F” will appear on the LCD. 4. Press ▲ to select either display. 5. Press to save the selection and return to P7.0. 6. Press ESC to return to Normal Mode.
SETUP MODE on the lower display. 3. Press to enter P8.1. The year flashes in the lower left corner of the LCD display. (The year is the last two digits only; for example, 1999 would be 99). Symbol: Definition: Range: Y-M-D Yr.-Mo.-Day 99-12-31 H:M:S Hr.-Min.-Sec. 23-59-59 4. Press to step through the following “P’s.” All are two digits. P8.1 = Year P8.4 = Hour P8.2 = Month P8.5 = Minute P8.3 = Day P8.6 = Seconds 5. Press ▲ and ▼ to adjust values up or down, respectively. 6. Press ESC to return to P8.
SETUP MODE mode as COND/TDS/SALT. Refer to pages 70-71 for default values of each parameter. 1. Press SET for 2 seconds to enter setup. 2. Press ▲ to select the reset section of the meter. 3. “rSt” will appear on the LCD and P9.0 will appear directly below. 4. Press to enter P9.1. 5. Press ▲ to switch between “YES” or “NO.” 6. Press to confirm and return to P9.0. 7. Press ESC to return to Normal Mode.
PH PROBE CALIBRATION Calibration is necessary before measurement. For the highest accuracy, we recommend a two point calibration. If only calibrating at a single point, make certain that the buffer value is close to that of the sample being measured and that the buffer temperature remains stable. 1. Press POWER to turn the meter on and press MODE continuously to select pH. 2. Rinse the probe in de-ionized water or rinse solution. Shake and air dry but DO NOT wipe the pH probe dry.
PH PROBE CALIBRATION 7. If NIST is selected, the lower display indicates the value of the solution at the current temperature. Note... If this secondary value continues to fluctuate, check the buffer or probe. (Refer to TROUBLESHOOTING page 55). If CUST is selected, the lower middle display indicates the default, 2.00. Press HLD to select the buffer range needed. Press ▲ or ▼ to adjust the lower middle display to coincide with the main display reading. 8.
CONDUCTIVITY PROBE CALIBRATION Selecting Calibration Standard Solution For best results, select a conductivity, TDS or NaCl standard near the sample value that you are measuring. Alternatively, use a calibration solution value that is approximately 2/3 of the full scale of the measurement range that you plan to utilize. For example, in the 0 to 1999 uS range, use 1413 uS solution for calibration. DO NOT reuse the calibration solution.
CONDUCTIVITY PROBE CALIBRATION 1999 range), the previous 1413 uS calibration point will be replaced in this range (0 ~ 1999 uS). However, the meter will retain the calibration data for other ranges that have not yet been calibrated. Note… The temperature coefficient of the meter defaults to 2.1% per °C and provides good results for most applications. To reset the coefficient, see P5.2 on page 23. Selecting Calibration Schedule For first use and best results, use solution to calibrate.
CONDUCTIVITY PROBE CALIBRATION 4. Rinse the probe in one of the containers. Gently stir the probe. 5. Dip the rinsed probe into the other container. Tap the probe on the bottom of the container to remove air bubbles. Let the probe stabilize to the solution temperature. A (Step 4) B (Step 5) 6. Turn the meter on. In Normal Mode, press MODE continuously to select the mode as CON. 7. Press CAL to enter Calibration Mode. The probe tomatically detects the conductivity value of the solution.
CONDUCTIVITY PROBE CALIBRATION Note… You can adjust the conductivity reading ± 20% from the measured value. If the detected value and the standard value differ by more than ± 20%, clean or replace the probe. Example: Standard: 10uS; Detected value: 19 uS Adjustable range: ± 3.8 uS (19*20%) However, under the above situation, the values already differed over 20%. Note… When the calibration is stable, “READY” will appear on the LCD.
CONDUCTIVITY PROBE CALIBRATION Example 2: Standard: 1.6 uS; Detected value: 2.1 uS Adjustable range: ± 0.42 uS (2.1*20) Although the measured value differs less than 20%, the 1.6 uS is still less than the 10% range limit (19.99*10%). Therefore, the maximum input value is 2.00 uS.
TDS CALIBRATION There are two options for TDS calibration: Option 1: Using TDS Standards The procedure for TDS calibration is almost the same as the procedure for conductivity calibration. Differences are as follows: 1. Select the TDS standard for calibration. The default TDS conversion factor is 0.50. If your solution has a different TDS factor, you can improve the calibration accuracy by setting the TDS factor before starting the calibration.
SALINITY CALIBRATION The procedure for salinity calibration is almost the same as the procedure for conductivity calibration. Differences are as follows: 1. In Measurement Mode, press MODE to select the mode as SALT and press CAL to enter Calibration Mode. 2. There are two measuring ranges for salinity: 0 to 11.38 ppt and 0 to 80.0 ppt. Please select a NaCl standard that is near the sample value you are measuring.
MEASUREMENT PROCEDURES Preparing for Measurement 1. Assemble the probe holder and attach the holder to the meter (pages 9-10). 2. Connect an adaptor to the power jack. Slide the adaptor jack into the meter, making sure it is firmly in place. (The meter’s voltage is 9V.) 3. For pH and ORP measurements, connect a sensor probe to the BNC port. For conductivity, TDS and salinity measurements, connect a sensor probe to the MIC port. 4.
MEASUREMENT PROCEDURES IMPORTANT: The temperature of the measured liquid must be stable. pH and conductivity probes CANNOT be placed in the same container while taking measurements. Hold Function This function allows you to freeze current readings on the display in Normal Mode. 1. Press POWER to turn the meter on. 2. Press HLD while in Normal Mode. “HOLD” appears on the display. 3. To release the Hold function, press HLD again. pH Measurement pH measurement range is 0 ~ 14 pH.
MEASUREMENT PROCEDURES minutes in a KCl solution. DO NOT wipe the pH probe dry. Wiping the probe may cause static and cause calibration and measurement instability. 2. Press POWER to turn the meter on. ATC appears on the LCD to indicate that the automatic temperature compensation probe is connected and working properly. 3. Immerse the probe tip (glass bulb) completely into the sample. 4. Stir the probe gently to create a uniform sample. 5. Wait until the reading has stabilized.
MEASUREMENT PROCEDURES 3. Follow Steps 3-5 in the pH Measurement section (page 40) to obtain a reading. 4. Press MODE to switch between mV and pH. ORP (mV) Measurement (± 1999 mV) Oxidation Reduction Potential (ORP) measurement range is -1999 mV to +1999 mV. Use an ORP probe for measurement: 1. Follow Step 1 in the pH Measurement section (page 39) to clean and soak the probe. 2. Press POWER to turn the meter on. Press MODE to select mV measurement. 3.
MEASUREMENT PROCEDURES Conductivity Measurement The conductivity probe measures 0 ~ 19.99 uS/cm, 0 ~ 199.9 uS/cm, 0 ~ 1999 uS/cm, 0 ~ 19.99 mS/cm, 0 ~ 199.9 mS/cm. In Normal Mode, the ATC indicator appears in the lower right corner of the LCD to indicate Automatic Temperature Compensation. If you select MTC, the ATC indicator will disappear. When selecting MTC, you must first deactivate ATC in P5.1 (page 23) and then set a MTC value in P5.3 (page 24). Before measuring, remove the probe cover if needed.
MEASUREMENT PROCEDURES 6. Press MODE to switch between CON and TDS/SALT. Total Dissolved Solid Measurement TDS readings display ppm or ppt on the LCD. The ATC indicator appears in the lower right corner of the LCD to indicate Automatic Temperature Compensation. If you select MTC, the ATC indicator will disappear. When selecting MTC, you must first deactivate ATC in P5.1 (page 23) and then set a MTC value in P5.3 (page 24). Before measuring, remove the probe cover if needed.
MEASUREMENT PROCEDURES 6. Press MODE to switch between TDS and CON/SALT. Salinity Measurement Use a conductivity probe to measure salinity range: 0 ~ 80 ppt (NaCl) with temperature compensations and temperature coefficient settings. Before measuring, remove the probe cover if needed. To measure: 1. Rinse the probe with de-ionized or distilled water. 2. Press POWER to turn the meter on. Press MODE to select salinity measurement. 3. Immerse the probe tip (glass bulb) completely into the sample. 4.
MEASUREMENT PROCEDURES Note… pH and conductivity probes CANNOT be placed in the same container while taking measurements. Improper measurement procedure Proper measurement procedure Automatic Temperature Compensation pH Probe Plug the temperature connector sensor into the ATC port at the rear of the meter. Conductivity Probe The temperature sensor is built into the conductivity probe. Plug the probe only into the MIC port at the rear of the meter. Manual Temperature Compensation pH Probe 1.
MEASUREMENT PROCEDURES 2. Press MODE to select pH Mode. 3. To set the temperature, press for more than 1 second. “CAL” will flash on the LCD. 4. Press ▲ or ▼ to change the temperature value. Press to save and return to Normal Mode. Conductivity Probe The temperature sensor is built into the conductivity probe. Follow the manual temperature setting procedures in P5.1 and P5.3 (pages 23-25) to set the temperature. Note... There is no need to take temperature compensation into consideration when measuring ORP.
MEASUREMENT PROCEDURES correspondent resolution): 1. While in Normal Mode, press setting. to select the range 2. If you select automatic range setting, “AUTO” appears on the upper left corner of the LCD. 3. When in manual range mode, E03 will appear on the LCD when the measured value is out of range. Select another range. 4. The meter will return to auto range when it is turned off. Record Memory The meter can store up to 99 records each of pH, mV, and ORP (mV), conductivity, TDS and salinity readings.
MEASUREMENT PROCEDURES 2. “MEM” will appear on the LCD. The memory number and measured value will flash and the meter will return to Normal Mode. Note… Further data can not be saved once the memory is full. See Clear Memory (page 16) to create additional space. Recall Memory This function recalls readings stored in the memory. 1. Press REC for more than 2 seconds to enter Recall Mode. “REC” will flash on the LCD display. 2. Press ▲ to select the next memory content. Press ▼ to select the previous memory.
MEASUREMENT PROCEDURES Recall Maximum & Minimum This function reviews a maximum and minimum value for all the data points stored in the memory. 1. Press REC for 2 seconds to enter Recall Mode. “REC” will flash on the LCD. 2. Press MN/MX to view the minimum value of the memory. Press MN/MX again to view the maximum value. 3. To exit memory recall, press REC for more than 2 conds and return to Normal Mode. Note… All records are retained even when the meter is off. To clear records, see page 16.
MAINTENANCE pH Probe It is important to keep the pH probe wet when not in use. The probe is protected by a plastic bottle containing solution. To use or store the probe: 1. Rotate the bottle to remove the bottle from the probe. Pull down the cover and remove it from the probe. 2. After use, put the cover back on the probe and plug the probe into the bottle. Rotate the bottle to fit into the cover tightly.
MAINTENANCE The following actions will keep the probe in good working condition: Always keep the pH glass bulb wet by using the plastic bottle to protect and store the probe. You can also store it in a KCl solution. Never use distilled or de-ionized water for storage. Always rinse the pH probe in de-ionized water before using. Never touch or rub the glass bulb tip. This probe is designed with a fiber junction.
MAINTENANCE To expose the new unused fiber portion: 1. Use tweezers to pull out the fiber junction and expose the new unused portion. 2. Cut the clogged fiber and expose the new portion. Conductivity Probe Before using, soak the conductivity probe in distilled water for 30 minutes. We recommend leaving the cover on the probe but you may remove it before calibration and measurement. If removing the cover, the probe must be uncapped in Calibration and Measurement Modes.
MAINTENANCE Do NOT touch the surface of the conductivity probe’s testing element with hard objects. Do NOT use anything to rub the platinum black surface of the probe or the original constants will be changed and the testing range will be affected. If the surface of the testing element becomes contaminated, place the probe into diluted detergent or diluted acid for about 15 minutes, then rinse the probe with distilled water.
MAINTENANCE the probe should be rinsed and stored in the soaker bottle filled with the soaking solution. ORP Probe Cleaning A contaminated sensing element can result in a slow response and/or inaccurate reading. If the contamination is mineral matter, put the sensing element in a 0.1 N HCl solution for 10 minutes. Rinse in distilled water. If the contamination is oil or grease, clean with a mild detergent. Rinse in distilled water.
TROUBLESHOOTING Meter does not turn on: 1. Press POWER for more than 2 seconds. 2. Check the power adapter connection. Unstable readings: 1. Stir the solution to make a uniform sample and make sure the sensor is completely immersed in the solution. The measurement must be done while the probe is in the container/solution. 2. Clean and re-calibrate or replace with the probe. 3. Move to a new location for measurement, RF emissions from unknown sources may disrupt readings. Readings not changing: 1.
ERROR CODES E02 Reading is under the lower range limit; See page 67 for range specifications for all parameters E03 Reading is over the upper range limit; See page 67 for range specifications for all parameters E04 Error in measuring original data (damaged temperature sensor or temperature out of specicifications) results in conductivity or pH value error. E02 or E03 will also appear in the temperature column. If E04 is caused by high liquid temperature (E03), cool down the liquid temperature.
PC CONNECTION The meter can interface with a personal computer to capture on-line or stored data. Connection procedures: 1. Plug a USB or RS232 cable into the jack labeled RS232 on the rear side of the meter. 2. Plug the D-sub 9 pin type connector into a computer Serial COM port. COM ports 1-8 can be used. 3. Insert the CD-Rom into the computer and follow the procedure in the operation manual located on the CD. Protocol information RS232 protocol settings: 9600 bps, 8 data bits, no parity.
PC CONNECTION Note... The first value is the pH reading in pH, the second value is the Voltage reading in mV, the third value is Conductivity in mS/uS, the fourth value is TDS in ppm/ppt, the fifth value is SALT in ppt, the sixth value is Temperature of the pH probe in °C/°F, the seventh value is Temperature of the conductivity probe in °C/°F. “x” means one of {0|1|2|...|9|-} Format in Memory Transmit (pH Mode) Normal Data: pxx.xxpH: Txxx.
PC CONNECTION Description: $mV:Temp LRC CRLF Format in Memory Transmit (Conductivity Mode) Normal Data: Cxxxx(xx.xx, xxx.x)mS(uS) : Txxx.xC(F) #xx @2007-04-18 18:48:48LRCCRLF Errors: ExxNul: ExxNul #xx @2007-04-18 18:48:48LRCCRLF Description: $Cond: Temp LRC CRLF Format in Memory Transmit (TDS Mode) Normal Data: Dxxxx(xx.xx, xxx.x)ppm(ppt) : Txxx.
PC CONNECTION Format in Memory Transmit (Salt Mode) Normal Data: Sxx.x(xx.xx) ppt : Txxx.
APPENDICES APPENDIX A: CONDUCTIVITY to TDS CONVERSION FACTORS Conductivity at 25°C 1413 uS 2070 uS 2764 uS 8974 uS 12,880 uS 15,000 uS 80 mS TDS KCl TDS NaCl TDS 442 ppm value Factor ppm value Factor ppm value Factor 744.7 1045 1382 5101 7447 8759 52,168 0.527 0.5048 0.5 0.5685 0.5782 0.5839 0.6521 702.1 1041 1414.8 4487 7230 8532 48,384 0.4969 0.5029 0.5119 0.5 0.5613 0.5688 0.6048 1000 1500 2062.7 7608 11,367 13,455 79,688 0.7078 0.7246 0.7463 0.8478 0.8825 0.897 0.
APPENDICES Actual Conductivity: Value measured using a properly ibrated Conductivity/TDS/Temperature meter. cal- Both the actual TDS and the actual conductivity values must be in the same magnitude of units. For example, if the TDS value is in ppm, the conductivity value must be in uS; if the TDS value is in ppt, the conductivity value must be in mS. Check this number by multiplying the conductivity reading by the factor in the formula and the result is the TDS in ppm.
APPENDICES Linear Temperature Correction In moderately and highly conductive solutions, temperature correction can be based on a linear equation involving a temperature coefficient (θ). The coefficient is usually expressed as a conductivity variation in %/°C. Linear temperature correction is used for saline, acids, and leaching solutions. Where: KTref = Conductivity at Tref KT = Conductivity at T (while Tc in P5.2 is set as 0.
APPENDICES T2 should be selected as a typical sample temperature and should be approximately 10°C different from T1. The temperature coefficients of the following electrolytes generally fall into the ranges show below: Acids: 1.0 - 1.6%/°C Bases: 1.8 - 2.2%/°C Salts: 2.2 - 3.0%/°C Drinking water: 2.0%/°C Ultra-pure water: 5.2%/°C Average temperature coefficients of standard electrolyte solutions expressed as %/°C of the conductivity value at 25°C.
OPTIONAL ACCESSORIES For 860031 (pH/mV) 840016 pH Probe (non-ATC) 840049 Spear Tip pH Probe (non-ATC) 850059P Replacement ATC pH Probe 850088 ORP Probe 860008 pH4, 3 bottles, 40mL each 860009 pH7, 3 bottles, 40mL each 860010 pH10, 3 bottles, 40mL each 860011 De-ionized Water, 3 bottles, 40mL each For 860032 (Conductivity/TDS/Salinity) 850038P Replacement Conductivity/TDS/Salinity Probe For 860033 (Water Quality) 840016 pH Probe (non-ATC) 840049 Spear Tip pH Probe (non-ATC) 850038P Rep
OPTIONAL ACCESSORIES 860009 pH7, 3 bottles, 40mL each 860010 pH10, 3 bottles, 40mL each 860011 De-ionized Water, 3 bottles, 40mL each 66
SPECIFICATIONS Unit of Measure Range Resolution Accuracy pH 0 ~ 14 pH 0.01 pH ± 0.02 pH ORP -1999 ~1999 mV 0.1 mV ± 0.2 mV (-199.9 ~ 199.9 (-199.9 ~ mV) 199.9 mv) otherwise 1 mV otherwise ± 2 mV 0 ~ 19.99 uS 0 ~ 199.9 uS 0 ~ 1999 uS 0 ~ 19.99 mS 0 ~ 199.9 mS 0.01 uS 0.1 uS 1 uS 0.01 mS 0.1 mS ± (1% FS + digit) TDS 0 to (19.99*f) ppm 0 to (199.9*f) ppm 0 to (1999*f) ppm 0 to (19.99*f) ppt 0 to (199.9*f) ppt f=TDS conversion factor 0.01 ppm 0.1 ppm 1 ppm 0.01 ppt 0.
SPECIFICATIONS Unit of Measure ATC or MTC Calibration Calibration Acceptable Window pH Yes Maximum 5 points automatic buffer recognition NIST: ± 1.25 at 6.86 CUSTOM: ± 1.00 Cond.
SPECIFICATIONS pH Slope/Offset display (pH Mode only) Slope alarm Out of 75% to 115% (pH) Offset alarm Out of ±60 mV (pH) Conductivity cell constant 1.0 (Conductivity) Conductivity Temperature 0.0% to 10.0%/°C (Conductivity) Coefficient (Tc) Reference temperature (Tref) Factory set at 25°C (Conductivity) TDS conversion factor 0.300 ~ 1.
SPECIFICATIONS Conductivity Default Settings Program Function Default Display Note P1.0 P1.1 Memory transmitting MEM sent by RS232 No default “tr” “out” Follow Cond or TDS of Normal Mode P2.0 P2.1 MEM clear CLR confirm “CLr” “no” or “yes” Follow Cond or TDS of Normal Mode P3.0 P3.1~3.5 CAL view Cal solution value P4.0 P4.1~4.5 CELL Constant 1.000 P5.0 P5.1 P5.2 P5.3 P5.4 Temp setting ATC/MTC Tc M Temp TDS Factor ATC 2.1% 25°C 0.500 P6.0 P6.1 Ready function Enable or disable “yes” P7.
SPECIFICATIONS pH/mV Default Settings Program Function Default Display Note P1.0 P1.1 Memory transmitting MEM sent by RS232 No default “tr” “out” Follow pH or mV of Normal Mode P2.0 P2.1 MEM clear CLR confirm “CLr” “no” or “yes” Follow pH or mV of Normal Mode P3.0 P3.1~3.4 Electrode Slope 100.0% P3.5 Offset 0.0 mV P4.0 P4.1-4.5 Buffer solution Select buffer “NIST” “buF” “NISt” or CUSt” P6.0 P6.1 Ready function Enable or disable “yes” “rdy” “no” or “yes” P7.0 P7.
WARRANTY Sper Scientific warrants this product against defects in materials and workmanship for a period of five (5) years from the date of purchase, and agrees to repair or replace any defective unit without charge. If your model has since been discontinued, an equivalent Sper Scientific product will be substituted if available. This warranty does not cover probes, batteries, battery leakage, or damage resulting from accident, tampering, misuse, or abuse of the product.
