HI 3221-02 pH/ORP/ISE Graphic LCD pH Benchtop Meter

Manufacturer: HANNA Instruments Inc.

Order number: HI3221-02

Availability:         0 pcs. in stock

Delivery time approx. 2 to 4 weeks

3,069.00AED *

Product information "HI 3221-02 pH/ORP/ISE Graphic LCD pH Benchtop Meter"


  • One or two input channels
  • pH Calibration Check™
  • Five point pH calibration with seven standard and five custom buffers
  • Stability, interval and log on demand logging
  • Up to 400 log on demand records and 600 automatic logging records
  • Messages on the graphic LCD for an easy and accurate calibration
  • Multi-language support
  • GLP features
  • PC interface via US


HANNA’s HI 3221 benchtop instrument features up to five point pH calibration with a choice of five custom buffers and seven standard buffers.

HI 3221 features an interactive user support interface that assists you before, during and after measurement. On-screen tutorials guide users through set-up, calibration and measurement while context sensitive help of any screen is available at a push of a button. The help screen includes language specific assistance for menu parameters, calibration, logging, contact and accessory information for your instrument.

This instrument features HANNA’s exclusive Calibration Check™, a diagnostics system that ensures accurate pH readings every time. By alerting users of potential problems during the calibration process, the Calibration Check™ system eliminates erroneous readings due to dirty or faulty pH electrodes or contaminated pH buffer solutions during calibration. Throughout the calibration process, users are guided step-by-step by the on-screen tutorial. After calibration, the probe condition is evaluated and an indicator is displayed informing the user of the overall pH electrode status.

The HI 3221 is equipped with one input channel.

This instrument can measure using ORP electrodes (pH channel input), thanks to it's capability to measure mV with a resolution up to 0.1 mV. The HI 3221 can use ISE electrodes in the ppm scale (pH channel input) and provides a choice of measurement units (ppb, ppm, molarity, weight/volume %).


Order Information:
HI 3221-01 (115V), HI 3221-02 (230V) is supplied with HI 1131B pH electrode, HI 7662-T temperature probe, HI 76404N electrode holder, HI 70004 pH 4.01 buffer solution sachet, HI 70007 pH 7.01 buffer solution sachet, HI 700661 electrode cleaning solution sachet (2), HI 7071S electrolyte solution (30 mL), 12 VDC adapter and instructions.


Range pH -2.0 to 20.0; -2.00 to 20.00; -2.000 to 20.000 pH
  mV ±2000 mV
  ISE 1.00 E-3 to 1.00 E5 concentration
  Temperature -20.0 to 120.0 °C (-4.0 to 248.0°F)
Resolution pH 0.1; 0.01; 0.001 pH
  mV 0.1 mV
  ISE 3 digits 0.01; 0.1; 1; 10 concentration
  Temperature 0.1°C (0.1°F)
(@ 20ºC/68ºF)
pH ±0.01; ±0.002 pH
  mV ±0.2 mV
  ISE ±0.5% of reading (monovalent ions),
±1% of reading (divalent ions)
  Temperature ±0.2°C (±0.4°F) (excluding probe error)
Calibration pH up to five point calibration, seven standard buffers available (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) + five custom buffers
  ISE up to two point calibration, six standard solutions
(0.1, 1, 10, 100, 1000, 10000 ppm)
  Slope from 80 to 110%
pH Calibration Check   yes
Rel. mV Offset Range   ±2000 mV
pH Temp. Compensation   manual or automatic from -20.0 to 120.0°C
(-4.0 to 248.0°F)
Input Channels   1
pH Electrode   HI 1131B pH electrode with glass body, BNC connector and 1 m (3.3’) cable (included)
Temperature Probe   HI 7662-T temperature probe, stainless steel with 1 m (3.3’) cable (included)
Logging   log on demand 300 samples
Lot Logging   5, 10, 30 seconds; 1, 2, 5, 10, 15, 30, 60, 120, 180 minutes (max 600 samples)
PC Connectivity   opto-isolated USB (with optional HI 92000 software)
Input Impedance   1012 ohm
Power Supply   12 VDC adapter (included)
Environment   0-50°C (32 to 122°F) RH max 55% non-condensing
Dimensions   235 x 207 x 110 mm (9.2 x 8.14 x 4.33”)
Weight   1.8 kg (4.1 lbs.)


HI 5004L pH 4.01 buffer solution
HI 5007L pH 7.01 buffer solution
HI 5010L pH 10.01 buffer solution
HI 7020L ORP Test Solution at 200/275 mV (@20°C)
1 x 500 mL bottle
HI 7021L ORP Test Solution at (240 mV @ 25°C/77°F)
1 x 500 mL bottle
HI 7022L ORP Test Solution at 470 mV @ 25°C/77°F)
1 x 500 mL bottle
HI 7091L Reducing Pretreatment Solution
1 x 500 mL bottle
HI 7092L Oxidizing Pretreatment Solution
1 x 500 mL bottle
HI 7071 Electrolyte Solution, 3.5M KCl + AgCl
4 x 30 mL bottles
HI 7082 Electrolyte Solution, 3.5M KCl
4 x 30 mL bottle
HI 7061L General Purpose Cleaning Solution
1 x 500 mL bottle
HI 70300L Electrode Storage Solution
1 x 500 mL bottle
HI 92000 Windows® Compatible Software
HI 920013 USB Cable
HI 76404N Electrode Holder for HI 42xx Type Bench Meters

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