Description
This product is a self-developed instrument for online monitoring of pH/ORP value. It is output to the monitoring room through RS485 or current transmission for record keeping. The pH/ORP controller is an intelligent online chemical analysis instrument, which is widely used in thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food and tap water industries to continuously monitor the pH value or ORP value and temperature in the solution. The continuous monitoring data is connected to the recorder through the transmission output to realize remote monitoring and recording. It can also be connected to the RS485 interface to communicate with the computer through the Modbus-RTU protocol, so as to realize the computer monitoring and recording of the instrument.
Applications:
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Sewage Treatment
-
Exhaust Gas Treatment
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Dyeing Wastewater
-
Strong Acid And Base
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Metal Surface Treatment
-
Fertigation System
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Food Processing
-
Power Plants
Features:
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Easy operation
-
Modular design
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Automatically Temperature Compensation
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Directly switchable to PH or ORP
-
Set buzzer, LCD backlight switch function
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Using isolated transmission output, less affected by interferance
-
Set high and low alarm and hysteresis functions
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RS485 communication Relay output
Technical Specifications:
|
Dimensions |
100mm×100mm×150mm |
|
Cutout Size |
92.5mm×92.5mm |
|
Range |
pH:(0.00 ~ 14.00)pH |
|
|
ORP:(-1000 ~+1000)MV,(-2000~+2000)MV |
|
Communication |
RS485、Modbus-RTU |
|
Current Output |
4-20mA |
|
Accuracy |
pH±0.02PH |
|
|
ORP±1MV |
|
Temperature Compensation |
NTC10K (-10~60)℃,±0.3℃ (60~130)℃,±2℃ |
|
|
PT1000 ±0.3℃ (-10~130)℃ Manual / Auto |
|
Transmit Output |
Isolated 4-20mA output |
|
|
maximum loop is 750Ω,±0.2%FS |
|
Relay |
2 relays AC250V/3A |
|
Relative Humidity |
(5%~95%)RH(No condensation) |
|
Operating Temperature |
(0 ~ 60)℃ |
|
Power Supply |
AC：220V±10%，50HZ/60HZ |
|
|
DC：24V±20%，Input Power≥6W |
|
Storage Temperature |
(-15~65)℃ |
|
Input Impedance |
≥1012Ω |
Display:
-
Temperature：Compensation temperature
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Analyst output：Analyst output
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Measured value：Real-time measurements value
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High alarm：High alarm
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Low alarm：Low alarm
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ESC：Check related warning status on the “monitoring page” Return to previous level page in the up& down level page linked to “menu page”
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Menu：Enter the MENU on the “monitoring page” Exit the MENU on the “menu page”
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Choose：“MOVE RIGHT” and “MOVE DOWN”
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Enter：Enter the sub-menu or confirm modification on the “menu page”
Wiring:
Dimensions:
Multi Point Calibration:
To achieve the best possible accuracy, the calibration should cover the range of the desired measurement values. If the readings go beyond the calibrated range, the pH meter assumes linearity and simply extrapolates the value to be displayed. The true value may be slightly different. More advanced pH meters will let the user calibrate at three, four or five and even higher numbers of pH values. A multi-point calibration mean, in comparison to a two-point calibration, that you can calibrate your pH tester on both sides of the zero point (pH 7.00). This will expand your pH measurement range without the need of recalibrating.
pH Calibration:
A pH calibration is the procedure of adjusting the pH meter by measuring solutions of known pH
values.
Why you need to calibrate?:
The characteristic of a pH electrode will change with time due to electrode coating and aging. And even a pH electrode would be stable over time, pH electrodes cannot be produced with identical characteristics. In practice the response of a real pH sensor does not exactly follow the Nernst equation. This difference between the theoretical and actual behavior of a pH electrode must be compensated for. A calibration is required to match the pH meter to the current characteristics of the used pH sensor.
Ordering Information:
PC-pH6.5-RT1-O1-D1-A2-V2
|
PC-pH6.5 |
|
|
RT1 |
Range |
（0～14）pH，
（-1000～1000）MV |
|
RT2 |
（0～14）pH, (-2000～2000)MV |
|
O1 |
Transmit Output |
4-20mA |
|
D1 |
Communication |
RS485 |
|
A2 |
Relay Output |
2 relay outputs |
|
V1 |
Power Supply |
24VDC |
|
V2 |
220VAC |
Minimum Order Quantity: 15 pieces.
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