Large cylindrical acid/base-resistant glass membrane
General process & digital · XF263
General-purpose industrial pH sensor
A double-junction industrial electrode for strong acid and alkali processes, industrial wastewater, electroplating, dyeing and electronics.
0–14 pH0–100°C6 bar maximum
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 reference design
Porous ceramic or porous PTFE salt bridge
Resistance to oxidizing media, solvents and acid/alkali solutions
Customizable insertion depth
Cable length can be extended up to 60 m
02
Product 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
- 0–100 °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 polymer gel (standard type)
- Protection rating
- IP68
- Housing material
- ABS, PPS or PTFE (optional)
03
Recommended process fit
Strong acid and alkali
For demanding chemical processes within the verified limits.
Industrial wastewater
General continuous pH measurement in contaminated water.
Electroplating and dyeing
For process baths and treatment stages requiring corrosion resistance.
Electronics industry
Process monitoring with the selected housing and installation.
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
Economical industrial pH sensor
View product↗
Digital industrial pH electrode
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.
Selection & service
Industrial pH electrode selection guide ↗From selection to installation
A pH range alone does not determine electrode suitability. Match the glass, reference junction, mounting and transmitter input to the water and process conditions.
Product literature
Download product brochures
XF263 is on PDF page 5 of the analog handbook. Check the selected connection, insertion length and temperature-compensation option before ordering a replacement.
Contact FUNEL
Tell us what you need to measure.
We will respond with a recommended configuration, supporting documentation and quotation.