| HI 991404 | HI 991405 |
测量范围 |
pH: 0.0 to 14.0 pH
EC: 0 to 3999 μS/cm
TDS: 0 to 2000 ppm
温度: 0.0 to 60.0 °C (32 to 140 °F) |
pH: 0.0 to 14.0 pH
EC: 0.00 to 20.00 mS/cm
TDS: 0.00 to 10.00 ppt
温度: 0.0 to 60.0 °C (32 to 140 °F) |
解析度 |
EC: 1 μS/cm TDS: 1 ppm
温度: 0.1 °C (0.1 °F) |
EC: 0.01 mS/cm TDS: 0.01 ppt
温度: 0.1 °C (0.1 °F) |
精度 | EC: ±2% F.S TDS: ±2% F.S 温度: ±0.5 °C (±1 °F) |
EC/TDS校准 | 自动单点校准,1413 μS/cm | 自动单点校准,12.88mS/cm |
pH电极 | HI1293D |
EC/TDS电极 | HI 7630 |
EC/TDS转换系数 | 0.0 to 1.00可调 |
温度补偿 |
pH:自动温度补偿
EC/TDS:自动温度补偿,补偿系数β :0.0 to 2.4%/°C |
供电方式 | 12 Vdc电源适配器或4×1.5V电池 |
操作环境 | 0 to 50°C (32 to 122°F); RH max 95% |
尺寸 | 160 x 105 x 31 mm |
重量 | 190 g |