The MEJ-PH163S pH ORP meter is an online analyzer that combines 4 – 20 mA analog signal, RS – 485 digital signal, and relay output capabilities. This makes it a versatile tool for industrial processes and water treatment operations, where it can be used to control pH levels and support remote data transmission.
Characteristics:
Measure range: pH: 0-14 pH; ORP: -2000 ~2000mV
Input Resistance: ≥10~12Ω
Power supply: 220V±10%，50Hz/60Hz
Output: 4-20mA, RS485, Modbus-RTU, Relay
Intro to PH163S pH ORP meter
The PH163S pH ORP meter is an online analyzer that combines 4 – 20 mA analog signal, RS – 485 digital signal, and relay output capabilities. This makes it a versatile tool for industrial processes and water treatment operations, where it can be used to control pH levels and support remote data transmission.
With a measurement range of 0 – 14 pH for acidity/alkalinity and – 2000 ~ 2000 mV for oxidation – reduction potential (ORP), the meter offers broad applicability across various liquid media. It features an input resistance of ≥ 10¹² ω, ensuring accurate readings even in challenging electrical environments.
Powered by a 220 V ± 10 %, 50 Hz/60 Hz supply, it can be easily integrated into standard industrial setups. The output options, including 4 – 20 mA for analog control systems, RS 485 with Modbus – RTU for digital communication, and relay outputs, allow for seamless connection to a wide range of monitoring and control devices.
Designed for modularity, it simplifies maintenance and customization. It can measure pH, ORP, and temperature, with manual or automatic temperature compensation, enhancing accuracy in different environmental conditions. The large LCD display with backlighting and user – friendly programming make operation straightforward.
This meter finds applications in diverse industries such as thermal power, chemical fertilizers, metallurgy, environmental protection, pharmaceuticals, biochemistry, food production, and tap water treatment.
It continuously monitors the pH, ORP, and temperature in solutions, and the data can be transmitted to a monitoring room for remote recording and analysis. Additionally, it offers high and low alarm functions, along with an alarm switch, for timely alerts when parameters deviate from set ranges.
| Product | pH meter, pH controller |
| Model | MEJ-PH163S |
| Measure range | pH: 0-14 pH, ±0.02 pH |
| ORP: -2000~2000mV | |
| Measuring medium | Liquid |
| Input Resistance | ≥1012Ω |
| Temp compensation | NTC10K: -10~60℃ accuracy:±0.3℃ 60~130℃ accuracy:±2℃ Range: -10~130℃ manual/ auto temperature compensation |
| Temperature Range | -10~130℃, NTC10K or PT1000 |
| Communication | RS485, Modbus-RTU |
| Relative humidity | (10~85)% |
| Operation temperature | 0~60℃ |
| Signal output | 4-20mA, maximum loop 750Ω, 0.2%FS |
| Power supply | AC:220V±10%，50Hz/60Hz DC 24VDC |
| Relay output | AC250V, 3A |
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Component workshop
Calibration workshop
Product verification
