PHG-2081 Industrial pH MeterDetailed product description：

The PHG-2081 industrial pH meter is a brand new pH analyzer. This meter is a highly intelligent online continuous monitoring instrument, consisting of a sensor and a secondary meter. Can be equipped with three composite or two composite electrodes to meet various usage scenarios.

Instrument features:
Intelligence: This industrial pH meter adopts high-precision AD conversion and single-chip microcomputer processing technology, which can complete various functions such as pH and temperature measurement, automatic temperature compensation, and instrument self-test
Reliability: Components are integrated onto a single circuit board, eliminating the need for complex functional switches, adjustment knobs, and potentiometers
Dual high impedance input: using the latest devices, the dual high impedance input impedance is as high as 1012 Ω, with strong anti-interference ability
Solution grounding: eliminating interference from the grounding circuit
Current isolation output: using photoelectric coupling isolation technology, strong anti-interference ability, and can be transmitted remotely
Communication interface: Can be easily connected to a computer for monitoring and communication
Automatic temperature compensation: automatic temperature compensation within 0-99.9 ℃
Waterproof and dustproof design: protection level IP65, suitable for outdoor use
Chinese display, Chinese menu, Chinese note taking: adopting a menu structure, similar to microcomputer operation, easy to operate, with Chinese prompts throughout the operation steps, and can be easily completed without the need for an instruction manual
Multi parameter display on the same screen: displaying pH value, input mV (or output current), temperature, time, and status on the same screen

Technical specifications of PHG-2081 industrial pH meter:

1. Measurement range: pH value: 0-14.00pH, division value: 0.01pH
Potential value: ± 1999mV, division value: 0.1mV
Temperature: 0-99.9 ℃, division value: 0.1 ℃
2. Automatic temperature compensation range: 0-99.9 ℃, with 25 ℃ as the reference
3. Tested water sample: 0-99.9 ℃, 0.6MPa
4. Automatic temperature compensation error of electronic unit: ± 0.03pH
5. Electronic unit repeatability error: ± 0.02pH
6. Stability: ± 0.02pH/24h
7. Input impedance: ≥ 1012 Ω
8. Clock accuracy: ± 1 minute/month
9. Current isolation output: 0-10mA (load<7.5k Ω), 4-20mA (load<750 Ω)
10. Output current error: ≤± 1% FS
11. Data storage quantity: 1 month (1 hour/5 minutes)
12. High and low alarm relay: AC220V, 3A
13. Communication interface: RS485 or 232 (optional)
14. Power supply: AC220V ± 22V, 50Hz ± 1Hz
15. Protection level: IP65
16. Dimensions: 146 (length) x 146 (width) x 108 (depth) mm
Hole size: 138x138mm
17. Weight: 1.0kg
18. Working conditions: Environmental temperature: 0-60 ℃ Relative humidity:<85%
19. Can be equipped with three composite or two composite electrodes