| Type | HPM10 | HPM20 |
| pH measurement | Range: -2.00
to +16.00 pH Resolution: -0.01 pH Accuracy: ±0.01 pH |
|
| ORP measurement | Range: -2000
mV to +2000 mV Resolution: 1 mV Accuracy: ±1 mV |
|
| Temperature measurement range | -10.0 ℃ to +130 ℃ | |
| Temperature resolution | 0.1 ℃ | |
| Temperature accuracy | ±0.2 ℃ | |
| Temperature compensation | automatic/mannual, Pt1000/NTC10K | |
| Temperature compensation range | -10.0 ℃ to +130 ℃ | |
| Current output | 1 x 0/4-20mA pH/ORP, 1 x 0/4-20mA Temperature. isolated, load 500 ohm | |
| Relay output | 2 x Limit(0 to 120 seconds
delay) 1 x function(Fault alarm,Delay alarm, Cleaning and so on) potential-free 250 V/50 Hz/5A, 30 VDC/5A |
|
| Cleaning | cleaning interval: 0.1 to 1000 hours; time: 1 to 1000 seconds | |
| Digital Output | RS485(Modbus protocol,baud-rate: 9600/19200/38400) | |
| Language | Chinese or English | |
| Ingress Protection | IP65 | |
| Power Supply | 90-260VAC, Power Consumption:5W(24VDC) | |
| Mounting | panel/wall/pipe | |
| Cutout dimensions | 92 mm x 92 mm | 138 mm x 138 mm |
| External dimensions | 96 mm H x 96 mm W x 140 mm D | 144 mm H x 144 mm W x 105 mm D |
| Weight | 0.7 kg | 0.8 kg |
