PH value is one of the important indicators for water quality monitoring and a key link in water environment analysis and treatment. Controlling the pH value of surface water is of utmost importance.

The Suyi PH water quality online monitoring analyzer consists of a PH transmitter and sensors (electrodes), and is an intelligent online monitoring and analysis device for pH value analysis in water quality.

This analytical instrument has high accuracy, good linearity, good stability, low maintenance, and long service life. Widely used in industries such as surface and groundwater, municipal wastewater, waterworks, sewage treatment plants, industrial engineering, aquaculture, etc.

The PH online monitoring system basically requires four components: transmitter, sensing electrode, signal cable, electrode installation protection device, etc.

1、 PH analog transmitter

Performance characteristics:

1.144x144 microcomputer designed pH/redox transmitter

2. IP65 protection design is suitable for wall mounted, disk mounted, and circular pipe installation.

3. Large LCD display screen with operation status and special symbol display.

4. Equipped with backlight sensor, automatic and manual backlight setting function.

5. Provide electrode automatic cleaning device contacts and program settings for output.

6. Provide a solution grounding function to eliminate interference from charged samples.

7. Equipped with automatic calibration, manual/automatic temperature compensation function, and end cycle calibration warning.

8. Password lock and combination key enter the setting and calibration mode design to enhance security protection.

9. Equipped with RS-485 interface output and Modbus standard communication protocol.

10. Set pH/ORP and water temperature corresponding to 0/4~20mA output.

Technical parameters:

Model SWM-A100-PH-AC SWM-A100-PH-DC

Test project PH/TEM

Measurement range PH -2.00~16.00pH TEMP-30.0~130.3 ℃

Resolution: pH 0.01, Temperature: 0.1 ℃

Accuracy PH ± 0.01 ± 1 Digit TEMP ± 0.01 ℃± 1 Digit

Temperature compensation NTC30K/PT100/automatic temperature compensation mode. Temperature correction or setting can be performed in all temperature modes

Calibration modes include single point, two-point, and three-point calibration; Custom, preset Tech, NIST standard solution calibration

Working environment temperature: 0~50 ℃

Storage environment temperature -10~70 ℃

Input impedance>1012 Ω

Display screen LCD display, automatic backlight selection

Current output: isolated 0/4~20mA, corresponding to PH/ORP/TENP can be set

Measurement range, load 500 Ω RS485 interface MODBUS protocol

Control contact output RELAY ON/OFF contact, 240VAC 0.5A Max setting for two independent HI/LO control points, cleaning setting for one set of control contact output, ON 0~9999 seconds/OFF 0~999.9 hours

Voltage output DC ± 12V

Protection level IP65

Power supply 100~240VAC ± 10%, 50/60Hz 20V~40VDC, Imax=0.5A

Installation method: Wall mounted/Pipeline mounted/Panel mounted

The dimensions of this machine are 144mmX144mmX115mm (H x W x D)

Hole size 138mmX138mm (H x W)

Weight 0.8Kg

2、 PH electrode

Technical parameters:

Name: Glass Composite PH Electrode

Model SY-EA-101

Range 0~14pH

Temperature resistance range 0~80 ℃

Pressure range 0~6bar

Electrode Material: Glass/Silver

Size specification: Φ 12x120mm

Characteristics: pollution resistance; Special reference design, high stability; Long distance reference diffusion pathway, long lifespan.

Temperature compensation options include PH100/PT1000/NTC cable length of 3m/5m/10m/20m

Installation thread is missing

Installation methods include immersion, pipeline, and drainage

Application scenarios: General water treatment, high pollution wastewater