HF-resistant glass sensing membrane
Harsh chemical & anti-fouling · XF266
HF-resistant industrial pH sensor
An industrial pH electrode with an HF-resistant glass membrane for semiconductor, petrochemical, steel wastewater and metal-treatment processes.
HF-resistant glass0–100°CIP68
Structured from the current technical file
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.
01
Construction and product highlights
Double-junction construction
Robust membrane with mechanical-shock resistance
Customizable electrolyte for selected aggressive media
Optional annular PTFE salt-bridge upgrade
Cable length can be extended up to 60 m
02
Verified technical specifications
The allowable HF concentration depends on pH, temperature and exposure conditions. Provide the complete chemistry for technical confirmation before ordering.
- Measurement range
- 0–14 pH
- Operating temperature
- 0–100 °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
- GFT mixed gel (HF-resistant type)
- Protection rating
- IP68
- Housing material
- PPS or PTFE (optional)
03
Recommended process fit
Semiconductor manufacturing
For confirmed HF-bearing process conditions.
Steel wastewater
Industrial pH monitoring in aggressive treatment streams.
Metal treatment and electroplating
For acid-bearing process and treatment applications.
Petrochemical and electronics
HF-resistant selection for verified media conditions.
04
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
05
Installation drawing
This drawing comes from the current technical file. Some models may share a housing illustration; confirm the final configured dimensions before ordering.
06
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→
07
Related models in this family
Ion-trapping industrial pH electrode
View product↗
FGD and DeNOx pH sensor
View product↗
Non-porous-junction pH sensor
View product↗08
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.
Contact FUNEL
Tell us what you need to measure.
We will respond with a recommended configuration, supporting documentation and quotation.