EFZ-203C online residual chlorine monitor Introduction
The online residual chlorine monitor uses imported components and a permeable membrane head based on the latest polarographic analysis technology and advanced production technology and surface mount technology. Using this series of advanced analytical techniques to ensure the long-term stability and reliability of the instrument. It has Chinese menu operation, 485 communication and other functions. It is used for continuous monitoring and control of residual chlorine content in aqueous solution for drinking water treatment plants, drinking water distribution networks, swimming pools, cooling circulating water, and water treatment projects. Features
1.Large screen dot matrix LCD display, Chinese menu operation.
2.Multiple parameters are displayed at the same time: residual chlorine value, hypochlorous acid value, PH value, temperature, output current, etc. are displayed at the same time, which is intuitive and easy to read, and has a range over limit prompt.
3.There is a factory reset function and a slope correction function.
4.Manual/automatic PH compensation and temperature compensation.
5.Communication function (optional): It has RS-485 communication interface (partially compatible with MODBUS protocol), and the residual chlorine value corresponding to 4~20 mA current output can be set arbitrarily.
6.Optical isolation 4-20mA current output.
7.The hysteresis can be set arbitrarily to avoid frequent switching of the switching relay. It has the function of setting the switching off and closing.
8. Watchdog function: Make sure the meter does not crash.
The core devices are all from famous foreign brands.
9.Power failure protection > 10 years. Technical Parameters
Measuring range: hypochlorous acid (HOCL): 0-10.00 mg/L, residual chlorine: 0-20.00 mg/L, pH: 0-14 pH,
Temperature: 0~60°C
Resolution: 0.001 mg/L, 0.01 mg/L, 0.01 pH, 0.1 °C
Accuracy: better than ±1% or ±0.01 mg/L, ±1% or ±0.01 mg/L, ±0.02 pH, ±0.5°C
Manual/Auto: PH compensation function (0-14) and temperature compensation function (0~60°C).
Control interface: Two sets of ON/OFF relay contacts, which are divided into high-point and low-point alarm signals.
Signal isolated output: Photocoupler isolation protection 4 ~ 20mA signal output
Relay: Relay hysteresis is arbitrarily set, relay load 10A 220VAC
Working conditions: Ambient temperature is 0~60°C, relative humidity ≤90%
Output load: Load <500Ω (0-10mA), load <750Ω (4-20mA)
Input impedance: ≥1×1012Ω
Working voltage: 220VAC±10%, 50/60Hz
Size: 96 × 96 × 115 mm
Opening size: 91×91mm
Weight: 0.9Kg
Introduction
The online residual chlorine monitor uses imported components and a permeable membrane head based on the latest polarographic analysis technology and advanced production technology and surface mount technology. Using this series of advanced analytical techniques to ensure the long-term stability and reliability of the instrument. It has Chinese menu operation, 485 communication and other functions. It is used for continuous monitoring and control of residual chlorine content in aqueous solution for drinking water treatment plants, drinking water distribution networks, swimming pools, cooling circulating water, and water treatment projects.
