TESTING & CALIBRATION FACILITY for WATER QUALITY SENSORS
Water quality sensors intended for deployment in rivers, streams, lakes, and
other water bodies can be tested and calibrated.
Table: Water Quality Parameters to be Tested and their Ranges & Accuracy
| Parameter |
Range |
Resolution |
Accuracy |
| pH |
4 to 10 |
0.01 pH Units |
±0.1 pH units within ±10°C of calibration temperature;
±0.2 pH units for entire temperature range
|
| Electrical Conductivity (EC) |
0 – 1000 µS/cm |
1 µS/cm |
±1% of reading or 2 µS/cm |
| Turbidity |
0 to 12.7 NTU |
1 NTU |
±2% of reading or ±0.5 NTU, whichever is greater |
| Dissolved Oxygen (DO) |
0 to 12 mg/L |
0.01 mg/L |
±0.1 mg/L or 1% of reading |
Unique Features of the Water Quality Sensors Calibration Laboratory
-
Environmental chamber to simulate different temperature
(+5 to 45°C) and humidity (40–90% RH) conditions
- NIST traceable standard calibration solutions are used
-
Testing and calibration without human intervention using a robotic arm
In addition to supporting government agencies, the facility is also available
for suppliers and manufacturers of water quality sensors for testing and
calibration of the parameters mentioned above.
