PH Transmitter monitors pH with LCD screen, multi-point calibration. It provides 4-20mA analog and RS485 Modbus signals plus dual relay alarms for water treatment automation.
LCD display, supports pH/ORP/temp real-time simultaneous reading
2/3-point standard buffer & on-site sample calibration
Auto/manual temperature compensation for precise readings
Dual 4-20mA + RS485 Modbus signal outputs
Two relay contacts for high/low limit dosing & alarm control
IP65 casing, panel/wall dual mounting, wide AC/DC power
| Product Name | Online PH/ORP Meter |
| Measurement Range | pH: 0-14.00; ORP: -2000~+2000mV; Temperature: 0-150℃ (depending on the electrode) |
| Measurement Accuracy | pH: ±0.05pH; ORP: ±5mV; Temperature: ±0.3℃ |
| Temperature Compensation | Automatic or Manual |
| Resolution | pH: 0.01pH; ORP: 1mV; Temperature: 0.1℃ |
| Stability | pH: ≤0.02pH/24h; ORP: ≤2mV/24h |
| Relay | 2 sets, 5A 240VAC/5A 28VDC or 120VAC |
| Power Supply | 85 ~ 265VAC or 9 ~ 36VDC, Power: ≤3W |
| Current Output | Standard: 1 channel 4-20mA; Optional: 2 channels |
| Communication Output | Standard: RS485 Modbus RTU |
| Overall Dimensions | 98*98*130mm |
| Panel Cutout Dimensions | 93*93mm |
| Protection Class | IP65 |
| Installation Method | Panel mounting / Cabinet mounting / Embedded or Wall mounting |
| Instrument Weight | 0.6kg |
| Ambient Temperature | -10 ~ 60℃; Relative Humidity: ≤90%; No strong magnetic field interference around except for the Earth's magnetic field |
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