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Summary of Contents for Amprobe WT-60
- Page 1 WT-60 Conductivity / TDS Water Quality Meter Users Manual • Mode d’emploi • Bedienungshandbuch • Manual d’Uso • Manual de uso GlobalScientificSupply GLOBAL SCIENTIFIC SUPPLY info@GlobalScientificSupply.com www. .com The Laboratory Supply Company!
- Page 2 WT-60 Conductivity / TDS Water Quality Meter Users Manual September 2009, Rev.1 ©2009 Amprobe Test Tools. All rights reserved. Printed in China GlobalScientificSupply GLOBAL SCIENTIFIC SUPPLY info@GlobalScientificSupply.com www. .com The Laboratory Supply Company!
- Page 3 Limitation of Liability Your Amprobe product will be free from defects in material and workmanship for 1 year from the date of purchase. This warranty does not cover fuses, disposable batteries or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on Amprobe’s behalf.
- Page 4 WT-60 Conductivity / TDS Water Quality Meter Probe socket Probe LCD display Temperature sensor Adaptor port Battery cover (rear side) USB port Tripod mount hole (rear side) Operation keys GlobalScientificSupply GLOBAL SCIENTIFIC SUPPLY info@GlobalScientificSupply.com www. .com The Laboratory Supply Company!
- Page 5 Conductivity reading (unit: uS or mS ) or TDS reading (unit: ppt or ppm or mg/l) Display temperature in either degree Celsius or degree Fahrenheit Freeze display ATC to indicate auto temp. compensation READY to indicate the reading is stable low battery indicator POWR/SET KEY: Press key to turn on and off the meter.
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Page 6: Table Of Contents
WT-60 Conductivity / TDS Water Quality Meter CONTENTS SYMBOLS .........................2 UNPACKING AND INSPECTION ................2 INTRODUCTION .......................2 Features .......................3 OPERATION ......................3 Auto Power Off ....................4 Set Up ........................5 Calibration Mode ....................8 Conductivity calibration ................8 TDS calibration ....................9 SPECIFICATION .......................10 MAINTENANCE AND REPAIR ................11 Battery Replacement ..................11... -
Page 7: Conductivity / Tds Water Quality Meter
For example, conductivity measurements are used to monitor quality in public water supplies, in hospitals, in boiler water and industries which depend on water quality such as brewing. WT-60 is a convenient instrument to measure water conductivity, TDS and temperature. -
Page 8: Features
Features • Dual display with ATC (°C / °F switchable) • Data hold to freeze display • Selectable conductivity to TDS conversion factor • USB download capabilities • Low battery indicator. • Auto power off • Maximum 5 calibration points OPERATION Conductivity Measurement 1. -
Page 9: Auto Power Off
5. Rinse the probe with deionized or distilled water to remove any impurity adhering to electrode body. If the electrode isn't used for a long time, please soak probe for more than 8 hours to clear up the lazy effect of the probe. -
Page 10: Setup
Setup The advanced setup mode lets you customize your meter. 4 types parameter are available. P1.0: Meter configuration: (CoF) P1.1:TDS factor(tdS) P1.2: READY indicator:(rdy) P1.3: ATC or Manual TC: (Atc) P2.0: Unit :(Unt) P2.1 select OC or OF:(t) P2.2 select ppm or mg/L: (tdS) P3.0: temperature parameters: (t) P3.1: Temperature coefficient:(tCo) P3.2: Normalization temperature:(nor) - Page 11 P1.2: READY indicator: (rdy) Meter is defaulted as "ON". Icon displays when measurement gets stable. Users can turn it off for faster response. Press UP /DOWN to switch "on" and "off". Press ENTER to confirm and enter P1.3. P1.3: ATC or Manual TC: (Atc) Meter is defaulted as ATC on.
- Page 12 P3.2: Normalization temperature: (nor) The meter will normalize its cond. measurement to a standard temp. which you preset. The adjustable range is 15 to 30 °C (59 to 86 °F). Meter default is 25 °C (77°F). When in P3.2, press ENTER again and the default normalization temperature flashes on LCD.
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Page 13: Calibration Mode
Calibration Mode Selecting a calibration standard For best results, select a conductivity or TDS standard near the sample value you are measuring. Alternatively, use a calibration solution value which is approximate 2/3 of the full scale of the measurement range you plan to use. For example, in the 0 to 1999 uS range, use 1413 uS solution for calibration. -
Page 14: Tds Calibration
8. Press UP/DOWN to change the value in order to match the value to the standard solution (solution must be referred to normalization temp. 20°C if P3.2 has re-adjusted as 20°C). You can adjust the conductivity reading for +20%. However, if the measured value and standard value differs by more than 20%, it is suggested to clean probe or replace meter. -
Page 15: Specification
8. Press the UP/DOWN to adjust the value to match the value to the standard solution. 9. When calibration is stable, ”READY” will display on LCD, press SET to confirm and return to TDS measurement mode 10. Repeat 1~9 for other ranges if needed. Option2: Using Conversion Factors TDS values are related to conductivity. -
Page 16: Maintenance And Repair
MAINTENANCE AND REPAIR If there appears to be a malfunction during the operation of the meter, the following steps should be performed in order to isolate the cause of the problem. 1. Check the battery. Replace the battery immediately when the symbol “... -
Page 17: Usb Pc Interface Capabilities
USB PC INTERFACE CAPABILITIES The USB cable and software are required to transfer data to a pc. The USB port is located on the right side of the instrument. The USB cable is not included. it can be purchased separately as an optional accessory. The protocol is: Format: C***. - Page 18 Error code Parameter: Conductivity “E01”, Probe is disconnected or damaged. • Check the probe socket. If E01 still appears, replace probe. “E02”, Conductivity value is over the range limit or meter is damaged. • Put the meter in standard solution. If E02 still appears, send back for repair. “E03”, Conductivity value is over the range limit or meter is damaged.
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Page 19: Appendix A
APPENDIX A: CONDUCTIVITY TO TDS CONVERSION FACTORS Conductivity TDS KCL TDS (NaCL) TDS (442) at 25 °C Factor Factor Factor 23μS 11.6 0.5043 10.7 0.4652 14.74 0.6409 84μS 40.38 0.4807 38.04 0.4529 50.5 0.6012 447μS 225.6 0.5047 215.5 0.4822 0.6712 1413μS 744.7 0.527... -
Page 20: Appendix B
APPENDIX B: CALCULATING TDS CONVERSION FACTORS The meter can be calibrated using TDS calibration standard solutions. The calibration standard only needs to give the TDS value at a standard temperature such as 25°C. To determine the Conductivity-to-TDS conversion factor use the following formula: Factor = Actual TDS ÷... - Page 21 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, e.g. for saline solutions, acids and leaching solutions.
- Page 22 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 shown below: Acids: 1.0 - 1.6%/°C Bases: 1.8 - 2.2%/°C Salts: 2.2 - 3.0%/°C Drinking water: 2.0%/°C Ultrapure water: 5.2%/°C Average temperature coefficients of standard electrolyte solutions expressed...
- Page 23 GlobalScientificSupply GLOBAL SCIENTIFIC SUPPLY info@GlobalScientificSupply.com www. .com The Laboratory Supply Company!