0~14pH 4~20mA or 0~20mA Online pH ORP Meter Controller For Water Treatment
pH/ORP controller (also known as pH meter) equipment is suitable for the control of PH and ORP values in electroplating, metallurgy, textile, chemical and other wastewater, giving new life to the traditional chemical treatment method, fully realizing automatic monitoring, automatic medication, to ensure that the discharge of wastewater to meet the national discharge standards.
Advantages of pH/ORP controller:
- pH glass electrode measurement method
- Two configurable SPST multifunction relays
- With 1 high-precision 0/4-20mA current output
- 3.2 inch LCD screen, rich content
- Support multiple installation methods
- AC and DC power modes, both wide voltage
- Housing material reinforced ABS, protection class IP66
pH ORP controller Parameters:
| Display Range | pH: 0~14pH |
| ORP: -2000mV~2000mV |
| Temp.:-10~+150℃ |
| Resolution | pH: 0.01pH ORP: 1mV Temp.: 0.1℃ |
| Accuracy | ±0.02pH/±2mV |
| Temp. Compensation | NTC10K/PT1000 automatic or manual |
| Relay Control | Channel Quantity: 2 |
| Control Type: main value control/temp. control/wash control |
| Contact Type: SPST |
| Contact Capacity: 3A 250V AC |
| Current Output | Channel Quantity: 1 |
| Output Type: active 4~20mA or 0~20mA |
| Max. Load: 1000Ω |
| Display Screen | 3.2 inch graphic LCD display |
| Configuration information | Power failure protection, parameters are retained indefinitely |
| Operating Environment | 0~+60℃, relative humidity 0~95%, no condensation |
| Storage Environment | -20~+70℃, relative humidity 0~55%, no condensation |
| Power Supply | 100~240VAC or 18~36VDC, 3W Max |
| Installation Method | Panel / wall / pipe mounting |
| Instrument Dimension | 144*144*120 (unit: mm) |
| Protection Grade | IP66 |
| Instrument Weight | About 800g |
Probe Setting
Perform sensor calibration and view of sensor status.
After the probe is connected to the controller, it needs to be calibrated first due to the error between
the signal of the actual electrode and the standard.
pH Calibration
1. Preparation before calibration
- In the menu “ select probe ”, select “ pH Glass probe ” or “ pH Antimony probe ”
- pH 4.01, 6.86, 9.18 standard solution (1)
- Deionized cleaning solution and absorbent paper
2. Zero Calibration
(1) Clean the probe with deionized cleaning solution, dry it with absorbent paper and put it
into pH 6.86 standard solution;
(2) After the measured value is stable, select “ 6.86pH CAL ” to start calibration;
3. Acid slope Calibration
(1) Clean the probe with deionized cleaning solution, dry it with absorbent paper and put it
into pH 4.01 standard solution;
(2) After the measured value is stable, select “ 4.01pH CAL ” to start calibration;
4. Alkali slope Calibration
(1) Clean the probe with deionized cleaning solution, dry it with absorbent paper and put it
into pH 9.18 standard solution;
(2) After the measured value is stable, select “ 9.18pH CAL ” to start calibration;
ORP Calibration
1. Preparation before calibration
- In the menu “ select probe ”, select “ ORP probe ”
- ORP 86mV, 256mV standard solution (1)
- Deionized cleaning solution and absorbent paper
2. Zero Calibration
(1) Clean the probe with deionized cleaning solution, dry it with absorbent paper and put it
into ORP 86mV standard solution ;
(2) After the measured value is stable, select " 86mV CAL " to start calibration;
3. Slope Calibration
(1) Clean the probe with deionized cleaning solution, dry it with absorbent paper and put it
into ORP 256mV standard solution;
(2) After the measured value is stable, select " 256mV CAL " to start calibration;
pH ORP controller Applications:
Water treatment monitoring: drinking water, surface water source water quality, groundwater, environmental sewage discharge monitoring, urban drainage network monitoring
Industrial process monitoring: chemical industry, petroleum, paper making, food and medicine, PCB electroplating, etc
If you are interested in more product information about pH ORP controller APX2-C1, please contact us.
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