
Differential signal PH/ORP online controller;
Support a variety of installation methods;
Clock and historical data recording function;
Two settable SPST multifunctional relays;
Two high-precision 0/4~20mA current output;
A two-wire RS485 interface, Modbus RTU protocol;
The meter can perform temperature compensation;
| Model | APX2-G4 | ||
| Sensor input | pH | Glass pH sensor (Compatible with grounded PH sensor) | |
| ORP | ORP sensor (Platinum/Gold sensor) | ||
| TEMP | PT1000 or NTC10K(B) | ||
| Measurement range | PH: 0~14pH ORP: ±2000mV TEMP: -10~150ºC /14~302ºF | ||
| Accuracy | 0.1% of the measuring range or PH: ±0.02pH /ORP: ±2mV | ||
| Relay output | Two SPST relays with a maximum load of 3A/250VAC | ||
| Analog output | Two 0/4~20mA current output with a maximum load of 1000Ω | ||
| Communication | A two-wire RS485 interface MODBUS RTU, supports JSON text data format | ||
| Clock function | Time is accurate to the second, and records the measurement data on time to form historical data that can be consulted | ||
| Data record | Record 10,000 historical data, and the recording interval can be set. Save the last 100 maintenance data | ||
| Display screen | 3.2 inch LCD screen | ||
| Operating temperature | 0~60ºC, less than 95% RH, non-condensing | ||
| Storage temperature | -20~70ºC, less than 55% RH, non-condensing | ||
| Configuration | Power failure protection, indefinite retention of parameters | ||
| Enclosure material | Enhanced ABS IP66 | ||
| Meter dimension | 144*144*120 mm | ||
| Mounting method | wall mounting, pipe clamp, panel (Hole size 138*138mm) | ||
| Power source | 100~240VAC or 18~36V DC | ||















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