| PH 2800/PH 221A |
| 测量范围(Range) | pH ： -2.00～16.00pH ORP：-2000～＋2000mV |
| 准确度(Accuracy) | pH : ±0.01 pH ORP：±1mV |
| 温度补偿(Temp.Comp.) | pH：Reference to25 ℃,MTC/ATC |
| 介质温度(Oper. Temp.) | -10℃～130℃ |
| 配套电极(Sensor) | pH ：PH composite electrode； ORP：ORP Electrode |
| 校准方式(Calibration mode) | pH ：4.00；6.86；9.18 Three-point calibration |
| 显示方式(Display) | Large screen parameters LCD |
| 电流输出(Current output) | Isolation of reversible or migration 4～20mA |
| 控制输出(Control output) | ON/OFF High limit,low limit relay |
| 供电电源(Power) | AC 110/220V±10% 50/60Hz |
| 工作条件(Working environment) | Ambient temperature:0～50℃ Relative humidity:≤85% |
| 外形尺寸(Dimensions) | 96×96×130mm(High×width×depth) |
| 开孔尺寸(Hole size) | 92×92mm |
| 安装方式(Installation mode) | Panel mounted (embedded) |
