Hanna   HI 8424  Portable pH/ORP Meter with ATC and HOLD feature

  • Automatic calibration
  • Automatic Temperature Compensation
  • Automatic buffer recognition
  • Three standard buffer values
  • Calibration tags on LCD
  • Low battery indicator
  • Auto shut-off
  • HOLD function
  • ºC and ºF measurements

 

HI 8424 is one of the most popular pH meters on the market. This instrument is able to perform pH, ORP and temperature measurements with a high degree of accuracy and fast response.

Calibration is automatic at one or two points with three memorized buffer values (pH 4.01, pH 7.01 and pH 10.01). Once the instrument has been calibrated, the buffer values used during calibration are displayed with tags on the LCD. This feature keeps users informed of the current calibration and helps to avoid taking measurements that are out of range.

Exchange the pH probe for an ORP probe to obtain ORP readings in the mV range.

Range pH -2.00 to 16.00 pH
  ORP ±699.9 mV; ±1999 mV
  Temperature -20.0 to 120.0°C / -4.0 to 248.0°F
Resolution pH 0.01 pH
  ORP 0.1 mV; 1 mV
  Temperature 0.1°C / 0.1°F
Accuracy pH ±0.01 pH
  ORP ±0.2 mV; ±1 mV
  Temperature ±0.4°C / ±0.8°F
Calibration pH automatic, 1 or 2 point with 3 memorized buffer values (4.01, 7.01, 10.01)
  Offset ±1 pH
  Slope 75 to 110%
Input Impedance   1012 Ohm
Temperature Compensation   Automatic, -20 to 120°C (-4 to 248°F) or manual without temperature probe
pH Electrode   HI 1230B PEI body pH electrode with BNC connector and 1 m (3.3’) cable (included)
Temperature Probe   HI 7662 stainless steel temperatures probe with 1 m cable (included)
Battery Type / Life   9V / approximately 150 hours of continuous use; auto-off after 20 minutes of non-use or disabled (user-selectable)
Environment   0 to 50°C (32 to 122°F); RH max 100%
Dimensions   164 x 76 x 45 mm (6.5 x 3.0 x 1.8")
Weight   180 g (6.3 oz.)
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