ISO Certified
Digital Conductivity TDS/Meter 641
Features
- Microcontroller Based
- Measures Conductivity and TDS
- Auto Ranging Facility
- Auto Cell Constant Measurement
- 3½ Digit Display
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.
Specifications
| 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 | |
Note : All Conductivity/TDS Meters are supplied with Cell having cell constant of 1.0 approximately. Specifications are subject to change without notice due to continuous developments.
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