PHG-2081

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PHG-2081 Industrial online PH Meter is a highly intelligent and English liquid crystal instrument for continuous online monitoring. It is made up of two parts: a sensor and a secondary meter. It can be used with a 3-in-1 or a 2-in-1 PH electrode in order to adapt various conditions.

Features

Intelligent: This industrial PH meter adopts high-precision AD conversion and single chip microcomputer

processing technologies and can be used for the measurement of the PH values and temperature, automatic

temperature compensation and self-checking.

Reliability: All the components are arranged on one circuit board. No complicated functional switch, adjusting

knob or potentiometer is arranged on this instrument.

Double high impedance input: The latest components are adopted; The impedance of the double high impedance

input can reach as high as l0¹²Ω. It has strong interference immunity.

Solution grounding: This can eliminate all the disturbance of the ground circuit.

Isolated current output: Optoelectronic isolating technology is adopted. This meter has strong interference

immunity and the capacity of long-distance transmission.

Communication interface: it can be easily connected to a computer to perform monitoring and communication.

Automatic temperature compensation: It performs automatic temperature compensation when the temperature is

within the range of 0~99.9℃.

Water proof and dust-proof design: Its protection grade is IP65. It is applicable for outdoor use.

English LED display, English menu operation: It adopts menu structure, which is like that in a computer. It can

be easily operated only according to the prompts and without guidance of the operation manual.

Multi-parameter display: The PH values, input mV values (or output current values), temperature, time and status

can be displayed on the screen at the same time.

Technical Parameters:

1. Measuring range: PH value: 0~14.00pH; division value: 0.01pH

Electric potential value: ±1999mV; division value: 0.1mV

Temperature: 0~99.9℃; division value: 0.1℃

2. Range for automatic temperature compensation: 0~99.9℃, with 25℃ as the reference temperature

3. Water sample tested: 0~99.9℃，0.6Mpa

4. Automatic temperature compensation error of the electronic unit: ±0 03pH

5. Repeatability error of the electronic unit: ±0.02pH

6. Stability: ±0.02pH/24h

7. Input impedance: ≥1x10¹²Ω

8. Clock accuracy: ±1 minute/month

9. Isolated current output: 0～10mA(load <1 5kΩ), 4～20mA(load <750Ω)

10. Output current error: ≤±l％FS

11. The data storage capacity: 1 month (1 point/5 minutes)

12. High and low alarm relays: AC 220V, 3A

13. Communication interface: RS485 or 232 (optional)

14. Power supply: AC 220V±22V, 50Hz±1Hz

15. Protection grade: IP65

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

dimension of the hole: 138 x 138mm

17. Weight: 0.8kg

18. Working conditions: ambient temperature: 0~60℃; relative humidity <85％

19. It can be equipped with a 3-in-1 or 2-in-1 electrode.

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PHG-2081

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