641 Digital Conductivity TDS/Meter

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EI’s Digital Conductivity/TDS Meter Model 641 is an accurate test instruments for measurement of Conductivity and TDS of aqueous solutions. It uses the latest microcontroller technology to measure the Conductivity from 200 µS to 1000 mS and TDS from 200 ppm to 1000 ppt in 5 ranges respectively. The appropriate range is automatically selected by the instrument. The Resolution is 0.1 µS for Conductivity and 0.1 ppm for TDS in the lowest range. The cell constant is flashed on a digital display and can be adjusted from the front panel. Facility is also provided for automatic measurement of cell constant with a known standard solution.

 

These instruments are ideal for monitoring salt contents in water and soluble salts in soils. They are extremely useful instruments for agriculture and soil analysis lab, swimming pools, fertilizer plants, mineral water plants, petroleum refineries, textile plants etc.

 

Features

  • Microcontroller Based
  • Measures Conductivity and TDS
  • Auto Ranging Facility
  • Auto Cell Constant Measurement
  • 3½ Digit Display
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Specification

Parameter Conductivity TDS
Display 3½ Digit Bright Red LED Display
Ranges Five Ranges
0 – 200 µS/cm
0 – 2 mS/cm
0 – 20 mS/cm
0 – 200 mS/cm
0 – 1000 mS/cm
Five Ranges
0 – 200 ppm
0 – 2 ppt
0 – 20 ppt
0 – 200 ppt
0 – 1000 ppt
Range Selection Automatic
Resolution 0.1 µS/cm in lowest range 0.1 ppm in lowest range
Accuracy ±0.5 % FS ± 1Digit
Cell constant Adjustable on Digital Display
Temperature Compensation Manual : 0 to 50°C
Auto Cell Constant Measurement Available using any standard solution
Measuring Cell Platinum DIP Type
Power 12V DC using 230 + 10% AC  Adapter
Dimensions 270 x 202 x 80 mm (l x b x h approx.)
Weight 0.8 Kg approx.
Accessories Conductivity/TDS Cell , Operation Manual, Cell Stand, Dust Cover, 12V Adapter

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