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China digital industrial ph meter, water ph tester , ph meter rs485/4~20mA
The display show




Factory default parameter value:

| Measuring range | pH(0 – 14 pH) ;ORP( -1900 - +1900 mV) | |
| Accuracy | + 0.02 pH; +1 mV | |
| Resolution | 0.01pH; 1mV | |
| Stability | ≤ 0.02 pH/24 hours; ≤ 3 mV/24 hours | |
| pH standard solution | 4.01/6.86/9.18 | |
| Display mode | 128 * 64 lattice LCD | |
| Temperature compensation | 0–100 ℃ manual/automatic(NTC10K) | |
| Signal output | 4-20mA isolation protection output, maximum loop resistance 300Ω | |
| Alarm output | each team of high and low limit alarm contact (3A/250 V AC), contact relay regularly on | |
| Power supply | AC 220V±10% 50Hz | |
| Power consumption | ≤3W | |
| Environment conditions | (1) temperature 0~ 60 ℃ (2) humidity≤85%RH | |
| Overall size | 96×96×110mm(height×width×depth) | |
| Hole size | 92×92mm(height×width) |





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