pH | ||
Measuring range | (-2.00 to 19.99) pH | |
Resolution | 0.1/0.01 pH | |
Accuracy | Meter:±0.01pH; Overall: ±0.02pH | |
Input current | ≤2×10-12 A | |
Input impendance | ≥1×1012 Ω | |
Stability | ±0.01 pH/3h | |
Temp. compensation range | (0 to 100) ℃ (automatic) | |
ORP(mV) | ||
Measuring range (mV/ORP/EH) | -1999 mV to 0 to 1999mV | |
Resolution | 1mV | |
Accuracy | Meter:±0.1% FS, Overall: ±15mV | |
Conductivity | ||
Measuring range | Conductivity: (0.00 to 19.99)μS/cm (20.0 to 199.9)μS/cm (200 to 1999)μS/cm (2.00 to 19.99) mS/cm (20.0 to 199.9) mS/cm TDS: (0 to 100) g/L Salinity : (0 to 100) ppt Resistivity:(0 to 100) MΩ·cm | |
Resolution | 0.01/0.1/1μS/cm 0.01/0.1 mS/cm | |
Accuracy | Meter:±1.0% FS, Overall:±1.5% FS | |
Temp. compensation range | (0 to 50) ℃ (automatic) | |
Electrode constant | 0.1 / 1 / 10 cm-1 | |
Benchmark temperature | 25℃, 20℃and 18℃ | |
Dissolved Oxygen | ||
Measuring range | (0 to 40.00) mg/L(ppm) (0 to 200.0) % | |
Resolution | 0.1/0.01 mg/L(ppm) 1/0.1% | |
Accuracy | Meter:±0.10 mg/L, Overall:±0.40 mg/L | |
Response time | ≤30 s (25℃, 90% response) | |
Residual current | ≤0.1 mg/L | |
Temp. compensation range | (0 to 45) ℃ (automatic) | |
Salinity compensation range | (0 to 45) ppt (automatic) | |
Atmospheric pressure compensation range | (66 to 200) kPa (manual) | |
Automatic calibration | Air saturated by water; water saturated by air | |
Electrode type | Polarogram type | |
Other Technical Parameters | ||
Data storage | 400 groups | |
Storage content | Series number, measuring value measuring unit and temperature, | |
Power | Two AA batteries (1.5V x2) | |
Size and weight | (360 x 270x 76) mm/1.7kg | |
Working Condition | ||
Environment temperature | 5 to 35 ℃ (0.01 grade) | |
Environmental humidity | ≤85% | |
IP rating | IP57 Dustproof and waterproof |