Non-porous reference junction eliminates junction clogging
Harsh chemical & anti-fouling · XF288
Non-porous-junction pH sensor
A junction-free reference design for severely contaminated chlor-alkali, sulfide, high-ammonia, heavy-metal and solvent processes.
Junction-free reference0–130°CAnti-fouling design
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
External reference protected from process contaminants
HA glass membrane standard; HT and HF options
Resistance to solvents and strong acids/bases
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
- GPT synthetic gel (high-temperature type)
- Protection rating
- IP68
- Housing material
- PPS / PTFE (optional)
03
Recommended process fit
Chlor-alkali
Junction-free design for media that rapidly foul porous junctions.
High-ammonia media
For severely contaminated process conditions.
Metal processing
For high heavy-metal-ion treatment streams.
FGD, DeNOx and solvents
For verified harsh chemical conditions with the selected membrane.
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
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→
06
Related models in this family
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FGD and DeNOx pH sensor
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HF-resistant industrial pH sensor
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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.
Contact FUNEL
Tell us what you need to measure.
We will respond with a recommended configuration, supporting documentation and quotation.