Normal and peak range
Provide minimum, normal and maximum conductivity instead of a single design value.
EC · Online, digital and portable measurement
Select conductivity instruments by range, cell constant and system interface
Six technical files plus the supplied parameter sheets support a structured catalog for the PEC-500 Series, PEC-500B, digital sensors, online systems, portable measurement and transmitters. Documents without a commercial model remain configured products rather than invented model numbers.
4named sensor models
0.05 µS–200 mS/cmdocumented span
5structured product groups
5project records
01 · Start with the range
Conductivity selection must include the cell constant
Pure water, process water, wastewater and saline water can differ by several orders of magnitude. Range, cell constant, material, temperature compensation and interface must be confirmed together.
Cell constant and material
Select K value and PP, 316L, titanium or CPVC construction for the range and water chemistry.
Temperature, pressure and mounting
Confirm continuous temperature, pressure, thread, insertion, cable and maintenance access.
Analog or digital interface
Conventional probes need a transmitter; digital sensors can integrate through RS485 Modbus.
02 · Product architecture
Five conductivity product groups
Named models are presented by model. Word files without model numbers are presented as verified configurations.
Analog sensorsPEC-500 / 500E / 500FAnalog sensors
Three analog sensor constructions cover general water treatment and low-to-medium conductivity ranges with different cell constants, materials and mounting threads.
PEC-500 / 500E / 500FK=0.01–1.0≤0.6 MPa
Digital integrationPEC-500B + Digital ECDigital integration
Direct RS485 Modbus output supports long-distance integration without treating the analog and digital sensor configurations as the same product.
RS485 ModbusIP68 / NEMA6PUp to 200 m cable
Online systemConfigured online systemOnline system
A configured sensor-and-controller system for continuous conductivity and temperature monitoring in water treatment and industrial processes.
10–5000 µS/cm3 × 4–20 mAModbus RS485
Portable measurementPortable configurationPortable measurement
A handheld meter and conductivity sensor for field verification, surface water, wastewater, aquaculture, boiler water and laboratory sampling.
0–20000 µS/cmIP67 / IP68>100,000 records
Transmitters2.4-inch / 2.8-inchTransmitters
Two panel-mounted configurations provide continuous conductivity and temperature display, analog transmission, Modbus communication and alarm control.
4–20 mAModbus RS4852 alarm relays
03 · Quick comparison
Choose the next step by product form
| Product group | Primary range | Interface / output | Recommended fit | Verified configurations |
|---|---|---|---|---|
| PEC-500 / 500E / 500FAnalog Conductivity Sensor Series | 10–5000 µS/cm (K=1.0) | K=0.01–1.0 | Water treatment | 3 |
| PEC-500B + Digital ECDigital Conductivity Sensors | 10 µS/cm–200 mS/cm | RS485 Modbus / Modbus RTU | Remote water stations | 2 |
| Configured online systemOnline Conductivity Analyzer | Conductivity: 10–5000 µS/cm; temperature: 0–80°C | 3 × 4–20 mA; Modbus RS485 | Municipal water | 1 |
| Portable configurationPortable Conductivity Analyzer | 0–20000 µS/cm (K=1) | IP67 / IP68 | Field verification | 1 |
| 2.4-inch / 2.8-inchSingle-Parameter Conductivity Transmitter | K=1.0: 2–2000 µS/cm; K=10.0: 20–20000 µS/cm | 1 × isolated 4–20 mA; Modbus RS485 | Local panels | 2 |
04 · Applications
Real conductivity project records
Smart water management, an unmanned boat, a wastewater plant, a river corridor and an industrial pumping station—with third-party company branding removed from the public copy.
View five project records↗
2022 · Zhejiang, China · XiaoshanSmart water-management sensing project
Conductivity was one of the online indicators used to track changes in dissolved ionic content and support anomaly detection.
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2022 · Guangdong, China · YangjiangUnmanned water-monitoring boat project
Conductivity was combined with pH, dissolved oxygen, turbidity, ammonia and UV COD to create a mobile water-condition profile.
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2021 · Hebei, China · HengshuiWastewater treatment plant online monitoring
Conductivity tracked ionic-content trends and was interpreted together with organic load, ammonia and dissolved oxygen.
↗05 · Common questions
Confirm this information before an inquiry
Why is “measure conductivity” not enough?+
Different water matrices can span several orders of magnitude. Minimum, normal and maximum values are needed first.
Are PEC-500, 500E and 500F interchangeable?+
No. Their range, cell constant, material, temperature compensation and mounting threads differ.
Are PEC-500B and the PPS digital sensor the same product?+
No. The supplied records show different materials, power, ranges and dimensions, so they remain separate digital configurations.
Will other equipment brands appear in the cases?+
No. Public copy retains project context, deployment and verified parameters without third-party company names or branding.
Contact FUNEL
Tell us what you need to measure.
We will respond with a recommended configuration, supporting documentation and quotation.