PE-138, Microprocessor based Multi Parameter Water Quality Analyser. Measures directly pH, EMF, Temperature, Electrolyte Conductivity (EC), Total Dissolved Solids (TDS), Dissolve Oxygen (DO) & Salinity, Colorimetric, Abs./%T and Turbidity in Water Sample one at a time.
SALIENT FEATURES
| PARAMETER | pH | EMF (mV) | Temp (°C) | Salinity |
| Range | 0 to 14 | ±1999.9 | 0 to 100 | 0 to 40 ppt |
| Readability | 0.001 | 0.1 | 0.1 | -- |
| Accuracy | ±0.001* | ±0.1 | ±0.5 | ±1%(1) |
| Repeatablility | ±0.001 | ±0.1 | ±0.1 | -- |
| INPUT | ||||
| Sensor | CE/GE & RE | CE/GE & RE | Semiconductor | ISE (Cl) & RE |
| Impedance@25°C | >1013 | >1013 | -- | -- |
| Receptacle | BNC, Banana | BNC, Banana | Banana | BNC |
| Temp. Compensation | 0 to 100°C A/M | -- | -- | 0 to 50°C A/M |
| PARAMETER | EC | TDS | DO (ppm) | COLORIMETER | TURBIDITY |
| Range | 0 to 200mS, 5 ranges | 0 to 100 ppt 5 ranges at TDS factor 0.5 | 0 to 20 | ±2 Abs., 0 to 100 %T | 0 to 100 NTU** |
| Readability | 0.05 % of range | 0.05 % of range | 0.1 | 0.001 Abs | 0.1 |
| Accuracy | ±1% of range | ±1% of range | ±0.1 | ±0.05 Abs | ±2% |
| Repeatablility | ±0.5 % of range | ±0.5 % of range | ±0.1 | ±0.01 Abs | ±1% |
| INPUT | |||||
| Sensor | Conductivity Cell | Conductivity Cell | Polarographic | Silicon PhotoDiode | Silicon PhotoDiode |
| Impedance@25°C | 1 KHz Sine Wave | 1 KHz Sine Wave | DC Voltage | Tungsten Lamp | Tungsten Lamp |
| Receptacle | BNC | BNC | BNC | -- | -- |
| Temp. Compensation | 0 to 50°C A/M | 0 to 50°C A/M | 0 to 100°C A/M | -- | -- |
* Conforms to IS2711-1979.
** Based on Formazine (Hydrazine Suphate and Hexamine) Standard
(1) Depending on the Standards
(2) Excluding 300 mm height electrode stand of 0.1 kg weight.
A : Automatic
GE : Glass Electrode
CE : Combined pH Electrode
M : Manual
RE : Reference Electrode
ISE : Ion Selective Electrode
