• 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.

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• 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 detect the 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.