Delta OHM HD2156.1 - P Hmeter Conductivity Thermometer

Measured quantities pH, mV, χ, Ω, TDS, NaCl, °C, °F
pH measurement by the instrument
Measuring range -2.00…+19.99 pH
Resolution 0.01 pH
Accuracy ±0.01 pH ±1digit
Input impedance >1012Ω
Calibration error @25°C
|Offset| > 20mV
Slope < 50 mV/pH or Slope > 63 mV/pH
Sensitivity < 85% or Sensitivity > 106.5%
Temperature compensation
automatic/manual -50...+150 °C
mV measurement by the instrument
Measuring range -1999.9…+1999.9 mV
Resolution 0.1 mV
Accuracy ±1 mV or ±0.2% of the reading (the greater)
±1 digit
Drift after 1 year 0.5 mV/year
Measurement of conductivity Resolution
Measuring range Kcell=0.01 0.0000…1.999 μS/cm 0.001 μS/cm
Measuring range Kcell=0.1 0.00…19.99 μS/cm 0.01 μS/cm
Measuring range Kcell=1 0.0…199.9 μS/cm 0.1 μS/cm
200…1999 μS/cm 1 μS/cm
2.00…19.99 mS/cm 0.01 mS/cm
20.0…199.9 mS/cm 0.1 mS/cm
Measuring range Kcell=10 200…1999 mS/cm 1 mS/cm
Accuracy (conductivity) ±0.5%±1digit
Measurement of resistivity
Measuring range Kcell=0.01 till1GΩ∙cm (*)
Measuring range Kcell=0.1 till 100MΩ∙cm (*)
Measuring range Kcell=1 5.0…199.9 Ω∙cm 0.1 Ω∙cm
200…999 Ω∙cm 1 Ω∙cm
1.00 k…19.99 kΩ∙cm 0.01 kΩ∙cm
20.0 k…99.9 kΩ∙cm 0.1 kΩ∙cm
100 k…999 kΩ∙cm 1 kΩ∙cm
1…10 MΩ∙cm 1 MΩ∙cm
Measuring range Kcell=10 0.5…5.0 Ω∙cm 0.1 Ω∙cm
Accuracy (resistivity) ±0.5%±1digit
Measurement of total dissolved solids (with coefficient χ/TDS=0.5
Measuring range Kcell=0.01 0.000…19.999 mg/l 0.005 mg/l
Measuring range Kcell=0.1 0.00…19.99 mg/l 0.05 mg/l
Measuring range Kcell=1 0.0…199.9 mg/l 0.5 mg/l
200…1999 mg/l 1 mg/l
2.00…19.99 g/l 0.01 g/l
20.0…99.9 g/l 0.1 g/l
Measuring range Kcell=10 100…999 g/l 1 g/l
Accuracy
(total dissolved solids)
±0.5% ±1digit
Measurement of salinity
Measurement range 0.000…1.999 g/l 1 mg/l
2.00…19.99 g/l 10 mg/l
20.0…199.9 g/l 0.1 g/l