Features:
• Multi-parameter portable conductivity meter is equipped with a large backlit LCD display.
• 1 to 5 points push-button calibration with automatic calibration solution recognition.
• Selectable cell constants (0.1/1/10), normalization temperatures, linear and pure watercompensation modes, seawater and practical salinity measurement modes.
• Automatic Temperature Compensation provides accurate reading over the entire range.
• Calibration Due Reminder prompts user to calibrate the meter regularly.
• Stability indicator automatically shows current measurement status.
• Auto-Hold function freezes stable measured value for easy viewing and recording.
• Selectable temperature unit (°C or °F) meets different application requirements.
• Automatic electrode diagnosis shows cell constant of the sensor.
• Help message as a operational guide that helps you quickly begin using the meter.
• System menu allows setting the 10 parameters, including the number of calibration points,
stability conditions, temperature units, hold function, etc.
• Reset feature automatically resumes all parameters back to factory default options.
• Expanded memory stores and recalls up to 500 readings.
• Built-in real-time clock stamps stored data to meet GLP standard.
• Stored data can be transferred into computer by USB communication interface.
• Multi-mode power scheme (battery, power adapter, computer's USB port) ensures that use the meter smoothly.
- Useful for Laboratory and research
Applictaions:
• Water quality monitoring
• Geological and ecological research
• Cooling towers
• Printing industry
• Swimming pools and Spas
• Agriculture and aquaculture
• Aquariums
• Education and lab applications
Specification :
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Model |
CM-30A |
CM-31A |
CM-34A |
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Conductivity |
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Range |
0~20.00, 200.0, 2000µS/cm, 20.00, 200.0mS/cm |
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Accuracy |
±0.5% F.S |
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Resolution |
0.01, 0.1, 1 |
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Calibration Points |
1 to 5 points |
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Calibration Solutions |
10µS/cm, 84µS/cm,1413µS/cm,12.88mS/cm,111.8mS/cm |
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TDS |
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Range |
0~10ppt (Max. 20ppt, depending on factor setting) |
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0~10ppt (Max. 20ppt, depending on factor setting) |
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Accuracy |
±1% F.S |
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±1% F.S |
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TDS Factor |
0.1~1.0 (Default 0.5) |
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0.1~1.0 (Default 0.5) |
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Salinity |
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Range |
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0~10ppt (Max. 80ppt) |
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Accuracy |
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±1% F.S |
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Measurement Modes |
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Seawater or Practical Salinity |
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Resistivity |
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Range |
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0~100MΩ |
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Accuracy |
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±1% F.S |
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Resolution |
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0.01, 0.1, 1 |
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Temperature |
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Range |
0~105°C, 32~221°F |
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Accuracy |
±0.5°C, ±0.9°F |
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Resolution |
0.1°C |
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Calibration Points |
1 point |
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Calibration Range |
Measured value ±10°C |
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Others |
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Temperature Compensation |
0~100°C, 32~212°F, Manual or Automatic |
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Temperature Coefficient |
0.0~10.0%/°C |
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Compensation Modes |
Linear or Pure Water |
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Cell Constant |
K=0.1, 1, 10 |
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Normalization Temperature |
20 or 25°C |
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Hold Function |
Manual or Automatic |
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Stability Conditions |
Low or High |
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Calibration Due |
0 to 31 days |
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Power Off |
Manual or Automatic (10, 20, 30 minutes) |
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Reset Function |
Yes |
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Memory |
Stores up to 500 data sets |
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Output |
USB Communication Interface |
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Power Requirements |
3×1.5V "AA" Batteries |
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Battery Life |
Approximately 150 hours (Turn off the backlit) |
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Dimensions |
170(L)×85(W)×30(H)mm |
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Weight |
300g |
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