Standard
ERhS, ERhM and ERhL: BNC connection and 0.8, 4.5 or 15 m cable.
Measuring electrodes
Redox electrodes
Combination electrodes for measuring the Redox potential (ORP), that is the disinfecting power of the water, in swimming pools, waterworks and industrial plants. Suitable for all types of water, including low-conductivity water.
- Range ± 1,000 mV (± 1,500 mV)
- Also for low-conductivity water
- BNC or SN6 connection
- In by-pass, in-line or immersion
± 1,500mVMaximum range
1mVResolution
100°CMaximum temperature
9Models
Models
Available models
All models are combination electrodes and differ in cable, connection and application.
Insight: the Redox potential →SN6 connection
ERhSN6: SN6 connection with PG13.5 thread, cable from 1 to 100 m, up to 100 °C.
Double junction
ERhM/D; ERhMD/100 for temperatures up to 100 °C.
Self-cleaning
ERhSC (BNC) and ERhSC/SN6 (SN6), double junction.
High linearity
ERhHLB SN6: high linearity and high sensitivity, designed to detect the low free chlorine concentrations of drinking water. Glass body, range ± 1,500 mV; it can be fitted with water-jet or air-jet self-cleaning.
Technical data
Data sheet
| Electrode | Range | Pressure | Connection | Body | Minimum conductivity | Junction | Temperature | Cable | Diameter | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| ERhS | ± 1,000 mV | 7 bar (3.5 bar) | BNC | Epoxy | 100 µS | – | 70 °C (80 °C) | 0.8 m | 12 mm | – |
| ERhM | ± 1,000 mV | 7 bar (3.5 bar) | BNC | Epoxy | 100 µS | – | 70 °C (80 °C) | 4.5 m | 12 mm | – |
| ERhL | ± 1,000 mV | 7 bar (3.5 bar) | BNC | Epoxy | 100 µS | – | 70 °C (80 °C) | 15 m | 12 mm | – |
| ERhHLB SN6 | ± 1,500 mV | 6 bar | SN6 with PG13.5 thread | Glass | 100 µS | – | 80 °C | 10 m | 12 mm | High linearity and sensitivity, for low chlorine concentrations |
| ERhSN6 | ± 1,000 mV | 7 bar | SN6 with PG13.5 thread | Epoxy | 100 µS | – | 100 °C | 1 – 100 m | 12 mm | – |
| ERhMD/100 | ± 1,000 mV | 7 bar | BNC | Epoxy | 100 µS | Double | 100 °C | 4.5 m | 12 mm | – |
| ERhM/D | ± 1,000 mV | 7 bar (3.5 bar) | BNC | Epoxy | 100 µS | Double | 70 °C (80 °C) | 4.5 m | 12 mm | – |
| ERhSC | ± 1,000 mV | 7 bar (3.5 bar) | BNC | Epoxy | 100 µS | Double | 70 °C (80 °C) | 4.5 m | 12 mm | Self-cleaning |
| ERhSC/SN6 | ± 1,000 mV | 7 bar (3.5 bar) | SN6 with PG13.5 thread | Epoxy | 100 µS | Double | 70 °C (80 °C) | 1 – 100 m | 12 mm | Self-cleaning |
All models: combination electrode, resolution 1 mV.
Installation
Installation
The probe is installed in one of the Giemme probe holders:
In by-pass
In a flow-through probe holder, installed in by-pass on the pipe.
Probe holders →In-line
In a probe holder mounted directly on the pipe.
Probe holders →Immersion
In an immersion probe holder, directly in the tank or basin.
Probe holders →Advice on selection
Tell us the characteristics of the water to be measured and of the system: we will recommend the most suitable electrode, probe holder and controller.