Ion-trapping system protects the external reference

Ion-trapping industrial pH electrode
An ion-trapping, salt-free-bridge pH electrode for high salinity, heavy metals, organics, ammonium and other media that challenge conventional sensors.
The values below come from the current model file. Final housing, membrane, cable, insertion depth, interface and accessories are controlled by the configured project datasheet.
Construction and product highlights
Salt-free bridge designed to avoid root clogging
Resistance to solvents and strong acids/bases
HA membrane standard; HT and HF membrane options
Customizable insertion depth
Cable length can be extended up to 60 m
Verified technical specifications
Confirm the water chemistry, continuous and peak temperature, pressure, mounting, insertion depth, cable length and controller interface before ordering.
- Measurement range
- 0–14 pH
- Operating temperature
- 0–130 °C
- Pressure range
- 0–3 bar, 6 bar max
- Temperature compensation
- PT1000 / NTC10K (optional)
- Factory slope
- >95%
- Zero point
- 7 ± 0.25 pH
- Response time
- <30 s
- Reference electrolyte
- GPT synthetic gel (high-temperature type)
- Protection rating
- IP68
- Housing material
- PPS or PTFE (optional)
Recommended process fit
Chlor-alkali and ammonia
For media that can contaminate conventional external references.
Metal treatment
For high heavy-metal-ion process conditions.
Organic solvents
Chemical-resistant construction for selected solvent processes.
FGD and DeNOx
Alternative for harsh, contaminated process media.
Items to confirm
To avoid selecting the wrong electrode, provide the real process conditions instead of only the pH range.
- 01Water matrix and main chemical components
- 02Continuous and peak temperature and pressure
- 03Mounting, insertion depth and cable length
- 04Temperature compensation, controller and communication interface
Installation drawing
This drawing comes from the current technical file. Some models may share a housing illustration; confirm the final configured dimensions before ordering.

Project documents available on request
After receiving the process conditions, we prepare the current configured documents for the selected model. Unverified certificates or customer references are not presented as standard claims.
Get a quote- Configured technical datasheet→
- Installation and dimension confirmation→
- Cable, interface and accessory schedule→
- Project quotation→
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Model confirmation
Can I order directly from the values on this page?+
The page supports preliminary selection. Final housing, membrane, cable, dimensions, temperature compensation and controller interface must be confirmed before ordering.
What is needed for an accurate quotation?+
Send the water chemistry, temperature, pressure, mounting, cable, interface, quantity and destination so the complete configuration can be quoted.
Tell us what you need to measure.
We will respond with a recommended configuration, supporting documentation and quotation.


