Specifications

• Temperature range:
  −10...+110 °C
• Description:
  Multi-parameter meter, bench, HQ440d, with two input channels (without electrodes)
• Seq:
  05
• Model:
  HQ440d
• ISE accuracy:
  ±0,1 mV
• Temperature accuracy:
  ± 0,3 °C
• Temperature resolution:
  0,1 °C
• Conductivity accuracy:
  ±0,5% (1 μS/cm - 200 mS/cm)
• Conductivity calibration:
  Demal (1D / 0,1D / 0,01D); Molar (0,1M / 0,01M / 0,001M); NaCl (0,05%/25 µS/cm/1000 µS/cm/18 mS/cm); standard sea water; user defined
• Conductivity range:
  0,01 μS/cm - 200 mS/cm
• Conductivity resolution:
  5 digits with 2 digits after decimal point
• Connections:
  2 × M12 digital for IntelliCAL™ electrodes
• DO concentration:
  0,00 - 20,0 mg/L
• DO concentration resolution:
  0,01 mg/L
• Data logging capacity:
  500 results
• Display:
  Backlit graphical LCD (with simultaneous readings from two electrodes)
• ISE resolution:
  0,1/0,01/0,001
• ISE range:
  Electrode specific
• Outputs:
  USB
• Power supply:
  230 V with power supply or 4 × AA Alkaline batteries
• Resistivity range:
  2,5 Ωcm - 49 MΩcm
• Resistivity accuracy:
  ±0,5%
• Salinity accuracy:
  ±0,1 mg/L (for range <8 mg/L)
• Salinity range:
  0 - 42 g/kg
• Salinity resolution:
  0,01 ppt
• TDS accuracy:
  ±0,5%
• TDS range:
  0,0 - 50,0 g/L
• TDS resolution:
  max. 3 digits
• Temperature compensation:
  Automatic, off, manual
• Weight:
  0,85 kg
• W×D×H:
  175×234×86 mm
• mV accuracy:
  ±0,1
• mV range:
  ±1500
• mV resolution:
  0,1/ 0,01/ 0,001
• pH accuracy:
  ±0,002
• pH calibration:
  Colour-coded: 4,01/7,00/10,01; IUPAC: 1,679/4,005/7,000/10,012/12,45; DIN: 1,09/4,65/9,23; user-defined custom buffer sets
• pH range:
  0 - 14
• pH resolution:
  0,1/ 0,01/ 0,001
• Pk:
  1