Oxidation-reduction potential (ORP/redOx)
RBR standard instruments support the AMT oxidation-reduction potential (ORP/redOx) sensors (Fig. 20 and Fig. 21).
Fig. 20. An AMT ORP 1250m sensor.
|
Fig. 21. An AMT ORP 6000m sensor.
|
Overview
These sensors measure the ability of water to gain or lose electrons, and can track contamination levels in environmental water when used over extended periods of time. RBR recommends deploying the ORP sensor together with the pH sensor.
Specifications
| Parameter | Value |
|---|---|
Accuracy |
1mV |
Resolution |
0.5mV |
Calibrated range |
240mV to 470mV |
Measurement range |
+/- 2000mV |
Depth rating |
1250m/6000m |
Calibration equation
ORP
\[\text{ORP}(V)=C_0+C_1*V_r\]