HS-802 PH monitor

Application field

It is widely used in the continuous monitoring of pH values of various water quality in electric power, waterworks, hospitals and other industries.

Main feature

1. A new high-intelligent all-microcomputer-based microcomputer controller.

2, 128 × 64 dot matrix LCD large screen display, full Chinese menu operation, man-machine dialogue, computer operation.

3. Display the pH value, input mV number (or output current), temperature, time and status on the same screen.

4. The current output adopts photoelectric coupling isolation technology, which has strong anti-interference ability and can be transmitted far.

5, alarm function, alarm relay high and low point, lag arbitrary program setting.

6, the communication interface can be easily connected to the computer for monitoring and communication.

7, compact structure, disc installation, easy to use and maintain.

8, waterproof and dustproof design, suitable for outdoor use.

The main technical parameters

1, the range

            pH：0.00～14.00pH          

            ORP：-2000～2000mV            

            Temp：-10～99.9℃         

2, the resolution rate

            pH：0.01pH 

            ORP：0.1mV

            Temp：0.1℃

3, precision

            pH：0.01pH±1Digit

            ORP：5mV±1Digit

            Temp：0.1℃±1Digit 

4, repeatability: no more than 1%

5, temperature electrode: Pt1000

6, temperature compensation: automatic temperature compensation 0 ~ 65 ° C

7, water sample conditions

             Flow rate: 10~40L/h

             Temperature: 10 to 45 ° C

             Pressure: 10～100KPa

             Impurity: solids less than 5 microns and no gel

8, ambient temperature: 0 ~ 60 ° C

9. Ambient humidity: <85% RH

10, analog output: galvanic isolation 0 ~ 10mA output (load <1.5 kΩ), 4 ~ 20 mA output (load <750Ω)

11. Alarm relay: high and low point, lag arbitrary program setting, two sets of ON/OFF output. AC220V upper limit current 3A

12, communication interface: RS485 or 232 (optional)

13, protection level: IP65

14, data preservation: 15 years

15, power: AC220V ± 22V, 50Hz ± 1Hz

16, power: 8W

17. Dimensions: 146 × 146 × 108 mm (H × W × D)

18, opening size: 138 × 138 mm (H × W)

19. Weight: 1.2kg

Selection guide

1. Four kinds of PH electrodes with high purity water, pure water, ordinary water and sewage can be selected.

2, the installation method can be installed in disc type or wall-mounted.