EC/TDS-6850 online Conductivity / TDS controller can continuously measure and control conductivity/ TDS value of water.
It is widely used for the science laboratory equipment, chemical, pharmaceutical, environmental protection, metallurgy, paper making, food, beverage, water supply industry, etc.
In accordance with the environment and characteristics of water industry, as well as the international power supply standard, considering the electricity design in special environment, the Conductivity / TDS / Resistivity controller could be supplied with power 220V AC( Standard),
110V AC and safe low voltage 24V AC, 24V DC(Optional)
Specification
| Function Model |
EC, TDS, RM-6850 Conductivity /TDS /Resistivity controller |
| Measuring Range | Conductivity: 0-200uS ( 0.1sensor), 0-20, 000uS(1.0 sensor), 0-200mS (10.0 sensor), 0-600mS(30.0 sensor) TDS: 0-100ppm(0.1 sensor), 0-10,000ppm(1.0/10.0 sensor) 0-99,999ppm (10.0 sensor) Resistivity: 0-18.25MΩ·cm (0.01 sensor) 0-18250KΩ·cm (0.01 sensor) |
| Accuracy | + 1.5% (FS) |
| Temp. Comp. | 0~120 ℃, Automatic, PT1000/NTC 10K optional |
| Sensor constant: | 0.01, 0.1, 1.0, 10.0, 30.0 cm-1, |
| Sensor connection: | 1/2”NPT (standard), 3/4”NPT(optional), Flanged (optional) |
| Sensor cable length | 5m or as per request |
| Display | 128 * 64 dot matrix LCD |
| Current output signal | Isolated, Transferable 4-20mA signal output, |
| max circle resistance 750Ω | |
| Control output signal | High/Low Limit relay control output, (3A/250 V AC) |
| Communication signal | Modbus RTU RS485 (optional) |
| Power | AC 220V ±10%, 50Hz (Standard) |
| AC110V ±10%, 50Hz (Optional) | |
| AC/DC 24V(optional) | |
| Working temperature. | 0~60℃, 0~100℃ (Match high temp. Sensor) |
| Working pressure: | 0~0.5MPa |
| Protection grade: | IP 65 |
| Working environment | Ambient Temp. 0~60℃, Relative Humidity ≤95% |
| Overall dimensions | 96×96×127mm(high×width×depth) |
| Hole dimensions | 92×92mm(height×width) |
| Installation Mode | Panel Mounted(Embeded) |
Main Functions
English language display
Measure Conductivity/TDS/Resistivity and Temperature,
High/low limit relay control output , 4-20mAcurrent output,
Modbus RS485 communication output (Optional)
High/low limit alarm light, double relay, alarm delay could be set
Instrument mode isolated transmitting port, max circle resistance up to 750Ω
PID control to actuate and control powered variable value through 4-20 mA output (optional)
Back light of LCD could select power saving mode, timing automatic off, brightness adjust,
Conductivity constant input directly function or to calibrate probe constant as per known calibration solution’s conductivity value
High performance CPU, good electromagnetic compatibility
MOV and AC input be fused function
ESD over voltage protection is available
Password management avoid non-professional person to operate
Application
It is widely used for the seawater desalination, aquaculture, reverse osmosis, chemical, pharmaceutical, environmental protection, metallurgy, paper making, food, beverage, water supply industry, science laboratory equipment, and all kinds of water treatment facility online monitoring and controlling.