Designed for low-conductivity water down to 1 μS/cm
Low temperature & pure water · XF268
High-temperature pure-water pH sensor
A low-conductivity, high-temperature pH sensor for power generation, boiler water and condensate systems down to 1 μS/cm.
Down to 1 μS/cm0–130°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
Continuous operation up to 130°C
Low-conductivity, high-temperature polymer gel
Double-junction reference design
Customizable insertion depth
Cable length can be extended up to 60 m
02
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
- GFT polymer gel (low-conductivity, high-temperature type)
- Protection rating
- IP68
- Housing material
- PPS / PTFE (optional)
- Minimum conductivity
- 1 μS/cm
03
Recommended process fit
Power generation
Online pH measurement in low-conductivity plant water.
Boiler water
For high-temperature, low-ionic-strength water systems.
Condensate
Continuous monitoring within the verified conductivity limit.
High-temperature pure water
Selected for demanding pure-water process 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
Low-temperature pH electrode
View product↗
Refillable ultra-pure-water 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.