PHG-2091 series microcomputer industrial PH metersDetailed product description：

The PHG-2091 series microcomputer industrial control instrument is a precision instrument used to test the pH value of solutions, with complete functions and stable performance. The characteristics of easy operation make it an ideal instrument for testing and controlling pH in industrial enterprises.

The PHG-2091 series instrument adopts a background light LCD display with error indication; Automatic temperature compensation; Double point correction; Isolated 4-20mA current output; Dual group relay control, adjustable hysteresis, high and low point alarm indication; Power off memory, no need for backup batteries, data can still be saved for more than ten years.

The PHG-2091 series instrument can be equipped with various types of pH electrodes.

Instrument Features
TI chip from the United States, 96x96 international standard housing, 90% of parts are international famous brands
Optocoupler isolation protection output, no interference between input signal and output signal
EEPROM type memory, no need for backup battery, data will not be lost after power failure
High performance operational amplifier, symmetrical ORP positive and negative values, small temperature drift, stability, and accuracy

technical indicators
1. Measurement range: PH: -4.00-18.00 mV: -1999~+1999mV
2. Resolution: 0.01PH 1mV
3. Accuracy: 0.05 level
4. Action control: Two sets of ON/OFF relays
5. Relay hysteresis: adjustable
6. Analog output: 4-20mA isolated protection output
7. Dimensions: 96x96x135mm
8. Opening size: 92x92mm
9. Protection level: IP54
10. Weight: 1.0kg

Standard Configuration
One secondary meter, one set of measuring cells, one electrode, and one package of pH (4.00, 6.86, 9.18) standard buffer solution. Ordering guide:
1. Are the matched electrodes two composite or three composite
2. The length of the electrode cable is not specified and should be arranged at 5m
3. Installation method of electrodes: flow-through submerged flange pipeline type