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PHG-2091 industrial online pH meter is precision meters for measurement of pH value of solution. With complete functions, stable performance, simple operation and other advantages, they are optimal instruments for industrial measurement and control of pH value.
Various pH electrodes can be used in PHG-2091 industrial online pH meter.

Features
1. LCD display, high-performance CPU chip, high-precision AD conversion technology and SMT
Chip technology, Multi-parameter, temperature compensation, high precision and repeatability
2. US T1 chips; 96 X 96 world-class shell; World-famous brands for 90% parts
3. Current output and alarming relay are isolated and protected by photocoupler, providing high
Interference immunity and long-distance transmission.
4. Isolated alarming signal output, discretionary setting of upper and lower thresholds for alarming, and lagged cancellation of alarming.
5. High-performance operational amplifier; Low temperature drift; High stability and accuracy.

Technical Indexes
1. Measuring range: 0~14.00pH, Resolution: 0.01pH
2. Precision: 0.05pH, ± 0.3ºC
3. Stability: ≤ 0.05pH/24h
4. Automatic temperature compensation: 0~100 ºC(pH)
5. Manual temperature compensation: 0~80 ºC(pH)
6. Output signal: 4-20mA isolated protection output, dual current output
7. Communication interface: RS485(selection)
8. Output control mode: ON/OFF relay output contacts
9. Relay load: Maximum 240V 5A; Maximum l l5V 10A
10. Relay delay: Adjustable
11. Current output load: Max. 750Ω
12. Insulation resistance: ≥ 20M
13. Working voltage: 220V± 20V, 50Hz± 0.5Hz
14. Overall dimension: 96(length)X96(width)X110(depth)mm
Dimension of the hole: 92X92mm
15. Weight: 0.6kg
16. Working condition: Ambient temperature: 0~60 ºC, Air relative humidity: ≤ 90%
Except for the earth magnetic field, there is no interference of other strong magnetic field around.

Standard configuration
One secondary meter, the mounting sheath of immerged (selection), one pH electrode, three packs of standard buffer solution (for pH4.00, 6.86 and 9.18 respectively).

Ordering guide:
1. To inform whether the electrode provided is a dual or ternary complex.
2. To inform the length of the electrode cable (default as 5m).
3. To inform the installation mode of the electrode: Flow-through, immerged, flanged or pipe-based