EC-4200 Dual Channel Conductivity Controller Operation Manual introduces the specifications, assembly and installation, circuit principle, connection diagram, operation interface, measurement, setup and calibration of the conductivity controller.
The EC-4200 is a dual‑channel controller for measuring conductivity, resistivity, temperature and % rejection. It offers isolated 4–20 mA current outputs, relay contacts for alarm and wash functions, and supports both PT1000/NFC30 temperature probes and manual temperature compensation.
The manual covers safety precautions, mounting dimensions, wiring diagrams, front‑panel LCD functions, calibration procedures with KCl solutions, error messages, and detailed specifications such as measurement ranges, resolution, accuracy, power supply options, and physical dimensions.
| Resolution (Conductivity) | 0.01 mS/cm |
|---|---|
| Accuracy (Conductivity) | ±1 % |
| Power Supply | 115 V or 230 V ±15 % |
| Cut‑out Dimension | 135 mm × 135 mm |
Remove AC power before wiring, ensure the installation site is well ventilated and away from direct sunlight, and mount the controller in a 135 mm × 135 mm cut‑out.
It indicates that during calibration the cell constant coefficient is out of the allowable range and the value will not be updated.