Simultaneously displaying EC/TDS
Isolated RS485 communication .
Automatic temperature compensation function.
Watchdog program prevents the instrument from crashing.
Set the LCD backlight switch function .
Two-way relay, can control EC (TDS) and temperature at the same time.
The GWQ-EC200 is an industrial intelligent online conductivity analyzer, a professional smart chemical analysis equipment for continuous monitoring of EC value, TDS and temperature values of solutions. It can transmit monitoring data to recorders for remote monitoring and recording, and is equipped with an isolated RS485 interface that can be easily connected to computers for data monitoring and recording through MODBUS-RTU protocol.
Widely used in thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food, tap water and other industries, the equipment has the characteristics of high measurement accuracy, stable performance, multiple protection functions, and easy operation, which fully meets the online monitoring needs of industrial sites.


Simultaneously display EC/TDS, output current and temperature values for comprehensive monitoring.
Isolated transmission output and RS485 communication, effectively reduce external interference.
Automatic temperature compensation function, ensure measurement accuracy under different temperatures.
Watchdog program prevents the instrument from crashing, stable operation for a long time.
Configurable LCD backlight switch function, easy to operate in dark industrial environment.
Two-way relay, can control EC(TDS) and temperature alarm at the same time, real-time early warning.
| Item | Details |
|---|---|
| Model | GWQ-EC200 |
| Measuring range (EC) | 0.02~20uS/cm(K=0.01) | 0.2~200uS/cm(K=0.1) | 2.0~2000uS/cm(K=1.0) | 20~20000uS/cm(K=10) |
| Measuring range (TDS) | 0.01~10ppm(K=0.01) | 0.1~100ppm(K=0.1) | 1.0~1000ppm(K=1.0) | 10~10000ppm(K=10) |
| Accuracy (EC/TDS) | ±2%FS |
| Temperature range | -10 ~ +130 ℃ |
| Accuracy (Temperature) | ±0.5 ℃ |
| Relay alarm | 250VAC/3A |
| Current Output | Isolated transmission 4-20mA output, maximum loop 750Ω,≤±0.2%FS |
| Communication | RS485 (compatible with MODBUS RTU) |
| Dimensions (mm) | 100*100*150 |
| Opening size (mm) | 92.5*92.5 |
| Weight | 0.65Kg |
| Power supply | AC220V±10% , 50Hz |
| Protection grade | IP54 |
| Model | Electrode constant(K) | Measuring range(EC) | Measuring range(TDS) | Connection method | Material | Cable | Application |
|---|---|---|---|---|---|---|---|
| GEC-EC0.01L | 0.01 | 0.02 ~ 20uS/cm | 0.01 ~ 10ppm | 1/2NPT | 304SS | 5m(Standard) | Pure water, ultrapure water |
| GEC-EC0.1L | 0.1 | 0.2 ~ 200uS/cm | 0.1 ~ 100ppm | 1/2NPT | 304SS | 5m(Standard) | Drinking water |
| GEC-EC1.0L | 1.0 | 2.0 ~ 2000uS/cm | 1.0 ~ 1000ppm | 1/2NPT | 304SS | 5m(Standard) | River and raw water |
| GEC-EC10.0L | 10.0 | 20 ~ 20000uS/cm | 10 ~ 10000ppm | 3/4NPT | Polysulfone | 5m(Standard) | Sewage |
Solution EC/TDS monitoring in power plant water treatment system.
Real-time monitoring of chemical solution concentration and temperature.
Tap water, sewage and reclaimed water quality online detection.
Pure water and solution monitoring in food and biochemical pharmacy.
The GWQ-EC200 has a measurement accuracy of ±2%FS for EC/TDS, and the temperature measurement accuracy is ±0.5 ℃, which meets the industrial on-site monitoring requirements.
It is equipped with an isolated RS485 interface, which is compatible with MODBUS-RTU protocol, and can be easily connected to a computer for remote data monitoring and recording.
The GWQ-EC200 has an automatic temperature compensation (ATC) function, and the applicable temperature range is -10 ~ +130 ℃, which ensures the accuracy of EC/TDS measurement under different temperature conditions.
It is matched with four types of electrodes: GEC-EC0.01L, GEC-EC0.1L, GEC-EC1.0L and GEC-EC10.0L, with electrode constants of 0.01, 0.1, 1.0 and 10.0 respectively, suitable for different EC/TDS measurement ranges.
The protection grade of the GWQ-EC200 is IP54, which can effectively prevent dust and splashing water from invading, and is suitable for various industrial site environments.
GWQ-EC200 industrial intelligent conductivity meter supports multi-parameter real-time monitoring, isolated output and remote communication.
Customize electrode models and on-site monitoring solutions according to your industrial needs.
Have questions? Need a quote? We are ready to help! Fill out the form and a member of our sales team will contact you to discuss your requirements. You can also give us a call at (86)177-9158-1665.
GWQ-EC200Rm. 1208, Building B, Huixin IBC, No. 1 Zhang Bayi Road, High-tech Zone, Xi'an, Shaanxi, China
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