The CLL PH/ORP-800 control instrument series adopts LCD display with background light and error indication; Automatic temperature compensation; Double point correction; Isolated 4-20mA current output; Dual group relay control, adjustable hysteresis, high and low point alarm indication; Power failure memory.

96x96 microcomputer designed pH/redox controller, large LCD display screen, with operation status and special symbol display, automatic calibration, temperature compensation and other functions, ACT and WASH light signals and unit indicators, electrode cleaning device contact output, can set electrode cleaning time, suitable for pH monitoring in general water treatment engineering, electronics, chemistry, pharmaceuticals and other processes.

The CLL PH/ORP-800 control instrument series can be equipped with various types of PH/ORP electrodes
1. Measurement range: PH-4.00~18.00PH ORP-1999~+1500mV
2. Resolution: 0.01PH; 1mV
3. Accuracy: ± 0.05PH; ±1mV
4. Stability: ≤ 0.02PH/24h；≤ 3mV/24h
5. PH correction approval range: Zero point ± 1.45 PH slope ± 30%
6. PH standard solution 4.01/6.86/9.18 4.00/7.00/0.01
7. ORP standard solution, any standard solution
8. Control range: 0-14.00PH; -1000~+1000mV
9. Temperature compensation: 0-99.9 ℃ (pH)
10. Output signal: 4-20mA isolated protection output
11. Control output mode: ON/OFF relay output contact
12. Relay with load: maximum AC 230V 5A maximum AC 115V 10A
13. Relay hysteresis: adjustable freely
14. Current output load: allows maximum load of 500 Ω
15. Insulation degree to ground voltage: The minimum load is 500VDC