Online pH meter and sensor features:
Industrial online monitoring
4-20mA output signal, 3 relays
Support RS-485, Modbus/RTU protocol
IP68 protection, waterproof
LCD display
Quick response, high precision
Data storage function
7*24 hours online continuous monitoring
Easy installation and easy operation
Different measuring range can meet different requirements
PH/ORP application:
Water treatment, tap water, sewage treatment, aquaculture,surface water monitoring, envronmental engineering,cooling tower circulating water, beverages and foodstuffs, pharmaceuticals, laboratories,industrial wastewater, discharge monitoring, desulfurization conditions.
PH Meter controller technical data
| Functions | PH | ORP |
| Measuring range | -2.00 to +16.00pH | -2000mV to +2000mV |
| Resolution | 0.01pH | 1mV |
| Accuracy | ±0.02pH | ±1mV |
| Temp. compensation | Pt1000/NTC10K | |
| Temp. range | -10.0 to+130.0℃ | |
| Temp. compensation range | -10.0 to+130.0℃ | |
| Temp. resolution | 0.1℃ | |
| Temp. accuracy | ±0.2℃ | |
| Cell constant | 0.001 to 20.000 | |
| Ambient temperature range | 0 to +70℃ | |
| Storage temp. | -20 to +70℃ | |
| Display | Back light, dot matrix | |
| EC current output1 | Isolated, 4 to 20mA output , max. load 500Ω | |
| Temp. current output 2 | Isolated, 4 to 20mA output , max. load 500Ω | |
| Current output accuracy | ±0.05 mA | |
| RS485 | Mod bus RTU protocol | |
| Baud rate | 9600/19200/38400 | |
| Maximum relay contacts capacity | 5A/250VAC,5A/30VDC | |
| Cleaning setting | ON: 1 to 1000 seconds, OFF: 0.1 to 1000.0 hours | |
| One multi function relay | clean/period alarm/error alarm | |
| Relay delay | 0-120 seconds | |
| Data logging capacity | 500000 | |
| Language selection | English/traditional Chinese/simplified Chinese | |
| Waterproof grade | IP65 | |
| Power supply | From 90 to 260 VAC, power consumption < 7watts | |
| Installation | panel/wall/pipe installation | |
