Select one or two electrodes from ammonium, nitrate, potassium, chloride and fluoride
Configurable ion-selective electrode system · PISE-900
Online Multi-Ion Analyzer
A configurable online ion-selective platform that combines one or two application-specific ion electrodes with standard pH and temperature measurement, allowing up to four parameters in one project configuration.
1 or 2 selectable ion electrodesUp to 4 parametersØ55 × 342 mm
Values checked item by item against the PISE-900 source
Five selectable ions, pH and temperature, accuracy, dimensions, protection and interfaces are stored separately. The black FUNEL transmitter is the export presentation and does not replace a dimensional drawing.
01
Measurement configuration and product highlights
Standard pH and temperature electrodes support mutual correction and compensation
Up to four parameters can be monitored in one configured sensor system
Digital sensor architecture supports long-distance transmission and system integration
Three 4–20 mA outputs, three configurable relays and Modbus RS485
Reverse-polarity protection, data storage, history review and optional wireless transmission
02
Product technical specifications
Confirm the one or two required ion electrodes, water matrix, minimum/normal/peak concentrations, pH, temperature, interfering ions, mounting, cable and interfaces before quotation.
- Measurement principle
- One or two selectable ion-selective electrodes with standard pH and temperature electrodes; up to four measured parameters
- Ammonium range
- NH₄-N 0.1–3000 mg/L
- Nitrate range
- NO₃-N 0.5–3000 mg/L
- Potassium range
- K⁺ 0.5–5000 mg/L
- Chloride range
- Cl⁻ 3–3500 mg/L
- Fluoride range
- F⁻ 0.5–10000 mg/L
- pH range
- pH 5–10
- Temperature range
- 0–40°C
- Resolution
- Ion parameters 0.01 mg/L; temperature 0.1°C; pH 0.01
- Accuracy
- NH₄-N ±5% of reading or ±0.2 mg/L, whichever is greater; other ions ±10% of reading or ±0.2 mg/L, whichever is greater; temperature ±0.5°C; pH ±0.1
- Repeatability
- ±5% or ±0.2 mg/L, whichever is greater
- Power supply
- 85–500 VAC; 9–36 VDC
- Analog output
- 3 × 4–20 mA
- Relays
- 3 configurable relays
- Digital communication
- Modbus RS485
- Storage temperature
- 0–50°C, non-freezing
- Operating temperature
- 0–40°C, non-freezing
- Sensor dimensions
- Ø55 × 342 mm
- Transmitter dimensions
- 145 × 125 × 162 mm
- Sensor weight
- <1 kg
- Transmitter weight
- 1.35 kg
- Sensor protection
- IP68 / NEMA6P
- Transmitter protection
- IP66 / NEMA4X
- Cable
- 10 m standard; extendable to 100 m
03
Source-supported applications
Surface water
Configure the required ion electrodes for continuous environmental-water monitoring.
Groundwater
Track selected ionic parameters together with pH and temperature.
Industrial process water
Integrate application-specific ion data into process and discharge controls.
Wastewater treatment
Monitor ammonium, nitrate or other selected ions at treatment-process points.
04
Items to confirm
Confirm the target ions and actual water first, then range, compensation, mounting and control interfaces.
- 01Choose one or two ion electrodes from NH₄-N, NO₃-N, K⁺, Cl⁻ and F⁻
- 02Minimum, normal, peak and alarm value for each ion
- 03Water matrix, pH, temperature, coexisting ions, solids, bubbles and fouling
- 04Mounting, cable, power, 4–20 mA, relays and RS485
05
Project documents available on request
Based on the target ions, water matrix and compensation requirements, we provide a configured datasheet, ion and compensation confirmation, I/O schedule and project quotation with the supply scope itemized.
Get a quote- Configured datasheet→
- Ion and compensation confirmation→
- Cable and I/O schedule→
- Project quotation→
06
Selection questions
How many ions can be selected at once?+
One or two ion electrodes can be selected, with standard pH and temperature, for up to four parameters.
Which ions are supported?+
NH₄-N, NO₃-N, K⁺, Cl⁻ and F⁻.
Why are pH and temperature included?+
The source states that ion parameters can be mutually corrected and compensated by pH and temperature for more accurate measurement.
Can the product image replace a technical drawing?+
No. The Ø55 × 342 mm sensor, 145 × 125 × 162 mm transmitter and mounting remain controlled by the datasheet and project confirmation.
Contact FUNEL
Tell us what you need to measure.
We will respond with a recommended configuration, supporting documentation and quotation.