Industrial online residual chlorine meter is a water quality online monitoring and control instrument with a microprocessor. This instrument is widely used in various industries such as drinking water treatment plants, drinking water distribution networks, swimming pools, water quality treatment engineering, sewage treatment, and water disinfection (with chlorine dioxide generators) to continuously monitor and control the residual chlorine value in aqueous solutions.

Instrument features

● LCD large screen color LCD display

● Intelligent menu operation

● Data recording&curve display

● Multiple automatic calibration functions

● Three sets of relay control switches

● High limit, low limit, hysteresis control

4-20mA&RS485 with multiple output modes

Display residual chlorine value, current value, etc. on the same interface

● Password protection can be set to prevent accidental operation by non staff members

Technical Parameter

(1) Measurement range:

Residual chlorine: 0-20.00mg/L (ppm);

Temperature: 0-50.0 ℃;

(2) Resolution:

Residual chlorine: 0.001mg/L;

Temperature: 0.1 ℃;

(3) Basic error:

Residual chlorine: ± 1% F.S;

Temperature: ± 0.3 ℃;

(4) Response time: 90% less than 90 seconds;

(5) 2-channel current output:

0/4-20mA (load resistance<750 Ω);

20-4mA (load resistance<750 Ω);

(6) Communication output: RS485 MODBUS RTU；

(7) Three sets of relay control contacts:

5A 250VAC，5A 30VDC；

(8) Power supply (optional):

85-265VAC ± 10%, 50 ± 1Hz, power ≤ 3W;

9-36VDC, power: ≤ 3W；

(9) Dimensions: 144 × 144 × 118mm;

(10) Installation methods: panel type, wall mounted type, pipeline type;

Panel opening size: 138 × 138mm;

(11) Protection level: IP65；

(12) Weight: 0.8kg;

(13) Work environment:

Environmental temperature:- 10～60℃；

Relative humidity: not exceeding 90%;

There is no strong magnetic field interference around except for the Earth's magnetic field.