♦Adopt double high-impedance three-electrode system, with online one-key calibration, real-time temperature compensation, electrode loose alarm, electrode good or bad alarm during calibration, and power-off protection .
♦Overcurrent protection, overvoltage protection, high measurement accuracy, fast response, long life and so on.
♦The user-friendly online one-key calibration function is convenient for users to calibrate and correct the electrode regularly. Combined with temperature compensation and power-off protection functions, it can effectively complete the conversion, processing, and other processes of measurement data.
♦Small in size, light in weight, easy to install and maintain, and the standard industrial signal output (0-5V, 0-10V, 4-20MA, ModbusRTU485) can meet the limit of on-site connection to various real-time monitoring equipment.
Water PH Temperature Transmitter Detection Sensor
The pH value and temperature transmitter adopts a dual high resistance three electrode system, which has the characteristics of on-line one key calibration, real-time temperature compensation, electrode breaking alarm, correcting the good and bad alarm of the punctual electrode, power off protection (which can make the calibration results and the preset data not lost because of shutdown or blackout), overcurrent protection, overvoltage protection, high measurement precision, quick response and long service life.
This product is suitable for: electroplating, yeast, food processing, sewage treatment, metallurgy, environmental protection and other occasions.
| ltems | Parameters |
| Temperature measurement range | -20°℃~+80℃ |
| Temperature measurement accuracy | ±0.5°℃ |
| Measurement PH range | 0.0～14.0PH |
| Measuring PH Accuracy | ±0.01PH |
| Power supply | DC12V-24V |
| Output | 0-5V/0-10V/4-20mA/RS485 |
| load resistance | Voltage output:R load ≥10K Ω Current output:R load≤(Uvcc-3)/0.02Ω |
| Consumption | <1W |
| Storage condition | 10-50℃(-20-+80C peak)20-60%RH |
| Working environment | -20°℃~+80℃ |
| dimension | 65X46X28.5mm³ |
Technical Specification
| Item No. | SCH-PH | |
| Measuring range | PH | 0.0~14.0PH |
| Temperature | -20℃～+80℃ | |
| Measurement accuracy | PH | ±0.1PH |
| Temperature | ±0.5℃ | |
| Working voltage | DC:12V ~ 24V (ripple< 50mV) | |
| Signal output | DC0-5V/ DC0-10V /4-20mA /Modbus RTU-RS485 | |
| Load resistance | Vout: RLoad≥10KΩ; | |
| Iout: RLoad≤(Uvcc-3)/0.02Ω | ||
| Power waste | ＜1W | |
| Storage environment | Temperature | 10℃-50℃ (-20℃～+80℃ peak) |
| Humidity | 20-60%RH | |
| work environment | Temperature | -20℃～+80℃ |
| Humidity | 5-95%RH (non-condensing) | |
| Shape size | 65mm*46mm*28.5mm | |
he linear relation between analog signals and the corresponding physical value:
0 to 5 v output: PH=PH output voltage*2.8, temperature=temperature output voltage*20.0-20.0;
0 to 10 v output: PH=PH output voltage*1.4, temperature=temperature output voltage*10.0-20.0;
4-20 ma output: PH= (PH output current-4.0)*0.875, temperature=(temperature output current-4.0)*6.25-20.0;
| PH measuring ange |
0.0～14.0PH | ||||||||||||||
| PH | 0.00 | 1.0 | 2.00 | 3.00 | 4.00 | 5.00 | 6.00 | 7.00 | 8.00 | 900 | 10.00 | 11.00 | 12.00 | 13.00 | 14.00 |
| 0-5V output | 0.00 | 0.36 | 0.71 | 1.07 | 1.43 | 1.79 | 2.14 | 2.50 | 2.86 | 3.21 | 3.57 | 3.93 | 4.29 | 4.64 | 5.00 |
| 0-10V output | 0.00 | 0.71 | 1.43 | 2.14 | 2.86 | 3.57 | 4.29 | 5.00 | 5.71 | 6.43 | 7.14 | 7.86 | 8.57 | 9.29 | 10.00 |
| 4-20mA output | 4.00 | 5.14 | 6.29 | 7.43 | 8.57 | 9.71 | 10.86 | 12.00 | 13.14 | 14.29 | 15.43 | 16.57 | 17.71 | 18.86 | 20.00 |
| Temperature measunng range |
-20～80℃ | ||||||||||
| Temperature | -20 | -10 | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | S0 |
| 0-5V output | 0.00 | 0.50 | 1.00 | 1.50 | 2.00 | 2.50 | 3.00 | 3.50 | 4.00 | 4.50 | 5.00 |
| 0-10V output | 0.00 | 1.00 | 2.00 | 3.00 | 4.00 | 5.00 | 6.00 | 7.00 | 8.00 | 9.0 | 10.0 |
| 4-20mA output | 4.00 | 5.60 | 7.20 | 8.80 | 10.40 | 12.00 | 13.60 | 15.20 | 16.80 | 18.40 | 20.00 |
FAQ
Can you produce according to the samples or drawings?
Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
What is the lead time?
For standard models, lead time is about 3~5 days after order confirmed and payment received.
For OEM orders, the delivery is about 2~3 weeks after data confirmed and payment received.
How to solve the quality problems after sales?
Take photos or videos of the problems and send to us.
We will make a satisfied solution for you within 24 hours after we confirm the problems
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