pH/ORP/Temperature Bench Meter with Calibration Check – HI3220

Absolete form 2026 January

HI3220 is a professional pH bench meter with a graphic LCD designed to provide high accuracy and ease of use both in the laboratory as well as in harsh industrial conditions. This instruments is a single input model measuring pH, ORP, and temperature utilizing a single channel. A Relative mV feature is also available.

This meter features Hanna’s exclusive Calibration Check™, a diagnostics system that ensures accurate readings every time. Calibration Check system eliminates erroneous readings due to dirty or faulty pH electrodes or contaminated buffer solution by alerting users of potential problems during the calibration process.

Throughout the calibration process, users are guided step-by-step by the on-screen tutorial. After calibration, a probe condition indicator is displayed on the LCD informing the user of the overall electrode status.

A variety of interactive user support is available before, during and after measurement. Onscreen 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 accessed by a dedicated HELP button, includes language specific assistance for menu parameters, calibration, log, contact information and accessories for your instrument.

Main Features:

• Single input channel
• Up to 5 point pH calibration with 7 standard buffers and 5 custom buffers to choose from
• Messages on the graphic LCD for an easy and accurate calibration
• Diagnostic features to alert the user when the electrode needs cleaning
• Three types of logging modes (for pH and mV)
  •  Stability logging
  • Interval logging
  • Log-on-demand
• Relative mV measurements
• Log on demand up to 200 samples
• Log interval with log on stability feature up to 600 records
• Auto Hold feature, to freeze first stable reading on the LCD
• GLP feature, to view last calibration data for pH or Rel mV
• PC interface

Primary Applications:

• Laboratory, Industrial

Specifications

Ordering Information:

HI3220-01 (115V) and HI3220-02 (230V) is supplied with:

• pH electrode HI1131B
• HI7662-TW Temperature probe
• HI76404W Electrode holder
• pH 4.01 buffer solution, 20 mL sachet x 2 
• pH 7.01 buffer solution, 20 mL sachet x 2
• Cleaning solution, 20 mL, 2
• Electrolyte solution
• Capillary pipette
• Power supply 12 Vdc adapter
• Device quality certificate with short operating instructions.
• pH electrode quality certificate and short operating instructions

Accessories:

(*denotes preferred accessories for web when space is a concern.)
Please refer to instruction manual for full accessory list.

pH Buffer Solutions:

HI5016 pH 1.68 Buffer Solution, 500 mL bottle
*HI5004 pH 4.01 Buffer Solution, 500 mL bottle
HI5068 pH 6.86 Buffer Solution, 500 mL bottle
*HI5007 pH 7.01 Buffer Solution, 500 mL bottle
HI5091 pH 9.18 Buffer Solution, 500 mL bottle
*HI5010 pH 10.01 Buffer Solution, 500 mL bottle
HI5124 pH 12.45 Buffer Solution, 500 mL bottle

pH Electrodes:

HI1043B Glass-body, double junction, refillable, combination pH electrode.
Use: strong acid/alkali.
HI1053B Glass-body, triple ceramic, conic shape, refillable, combination pH electrode.
Use: emulsions.
*HI1083B Glass-body, micro, Viscolene, non-refillable, combination pH electrode.
Use: biotechnology, micro titration.
*HI1131B Glass-body, double junction, refillable, combination pH electrode.
Use: general purpose.
HI1330B Glass-body, semimicro, single junction, refillable, combination pH electrode.
Use: laboratory, vials.
HI1331B Glass-body, semimicro, single junction, refillable, combination pH electrode.
Use: flasks.
*HI1230B Plastic-body (PEI), double junction, gel-filled, combination pH electrode.
Use: general, field.
FC911B Plastic-body (PVDF), double junction, refillable with built-in amplifier, combination pH
electrode.
Use: very high humidity.
*HI1413B Glass-body, single junction, flat tip, Viscolene, non-refillable, combination pH
electrode.
Use: surface measurement.

ORP Electrodes:

*HI3230B Plastic-body, gel-filled, combination platinum ORP electrode. Use: general purpose.

Electrode Cleaning Solution:

*HI7061L General Purpose Solution, 500 mL bottle

Electrode Storage Solution:

*HI70300L Storage Solution, 500 mL bottle

EC Calibration Solutions:

HI6033 84 μS/cm, 500 ml, bottle
HI6031 1413 μS/cm, 500 ml, bottle
HI7039L 5000 μS/cm, 500 ml, bottle
HI7030L 12880 μS/cm, 500 ml, bottle
HI7034L 80000 μS/cm, 500 ml, bottle
HI7035L 111800 μS/cm, 500 ml, bottle
HI7037L 100% NaCl, 500 ml, bottle