English Display, English Menu and English Notepad: It adopts the menu structure, similar to the computer with simple operation. There are English prompts during the whole operational procedure; without the instruction, you can easily complete the task.

Multi-parameter display: On the same screen, residual chlorine, temperature, pH value, output current (HOCL or chlorine electrode input current), status and time are displayed.

History curve: It automatically stores residual chlorine measurement data every 5 minutes and it can continuously tore a months of residual chlorine values. On the same screen, it provides “History Curve” display and “Timed” query.

Notepad: The notepad faithfully records the operation of the instrument and the occurrence time of the alarm, easy for management.

Monitoring electrode: The calibration mode, the time and the result are recorded every time, easy to inquire and analyze the electrode changes.

Clock: It provides different time references.

Excellent display: It adopts 192×64 bitmap format backlit LCD display, achieving graphics and English display. With the adjustable uniform background light, you can clearly observe and operate the instrument in the dark conditions outdoors.

Stable instrument not crashing: The watchdog process ensures the instrument to work continuously and not to crash.

Manual current source function: You can check and arbitrarily set the output current value, facilitating to detectthe recorder and the lower computer.

Software set current output mode: Software selection is 0~10mA or 4~ 20mA output, and the user needn’t push any switch.

1. Measuring range    

   Residual chlorine: 0-20.00mg/L,     Resolution: 0.01mg/L;

   HOCL: 0-10.00mg/L                     Resolution: 0.01mg/L;

   pH value: 0 - 14.00pH                   Resolution: 0.01pH;

   Temperature: 0- 99.9 °C                Resolution: 0.1 °C

2. Accuracy: Residual chlorine: ± 2% or ± 0.035mg / L, take the bigger;

    HOCL: ± 2% or ± 0.035mg / L, take the bigger;

    pH value: ± 0.05Ph

    Temperature: ± 0.5 °C (0 ~ 60.0 °C);

3. Sample temperature: 0 ~ 60.0 °C, 0.6MPa;

4. Sample flow rate: 200 to 250 mL/1min   Automatic and Adjustable

5. Minimum detection limit: 0.01mg / L

6. Repeatability error of the electronic units:

    Residual chlorine: ± 0.02mg/L, pH value: ± 0.02pH;

7. Stability: Residual chlorine: ± 0.02 (mg / L)/24h, pH value: ± 0.02pH/24h;

8. pH Input Impedance: ≥ 1012 Ω;

9. Clock accuracy: ± 1 min/month;

10. Isolated current output: 0~10mA(load <1.5 kΩ), 4~20 mA(load <750Ω)

11. Output current error: ≤±1%FS;

12. Data storage capacity: l month (1 point/5 minutes)

13. High and low alarm relays: AC220V, 7A; Hysteresis Amount 0- 5.00mg / L; Arbitrary Regulation

    RS485 communication interface (optional);

14. Power Supply: AC220V ± 22V, 50Hz ± 1Hz; DC24V (optional).

    If it is not specified when ordering, AC220V is the default power supply.

15. Protection grade:  IP65

16. Overall dimension: 146 (length) x 146 (width) x 108 (depth) mm;  

      dimension of the hole: 138 x 138mm

     Note: The wall installation may be ok, please specify when ordering.

17. Power: ≤ 10W;

18. Weight: Secondary Instrument: 0.8kg, flow cell with residual chlorine, pH electrode weight: 2.5kg;

19. Working Conditions: ambient temperature: 0 ~ 60 °C;   relative humidity <85%;

      Adopt the flow-through installation, and incoming and outgoing water mouth diameter at Φ10.