Portable Copper/Copper Sulphate Reference Electrode
Copper sulfate electrode (CSE) is the most commonly used reference electrode for measuring potentials of underground structures and also for those exposed to freshwater. This Cu/CuSO4 reference electrode is composed of a copper rod, immersed in a saturated solution of copper sulfate, held in a non-conducting cylinder with a porous plug at the bottom. The copper ions in the saturated solution prevent corrosion of the copper rod and stabilize the reference electrode.
Parameters
| Category | Portable Reference Electrode |
|---|---|
| Substrate | Copper Sulphate (CuSO4) |
| Electrode Potential | +316 mV (25°C vs SHE) |
| Potential Stability | ±5 mV (at 0.3 mA) |
| Insulation Resistance | > 1 MΩ |
| Operating Temperature | 0°C ~ 55°C |
| Temperature Coefficient | 0.96 mV/°C |
| Lifetime | 30 yrs. |
