Company Blog Company News Company History Upcoming Tradeshows Product Testimonials
Product MSDS Product Manuals Product Literature General Catalog ISO 9001:2000 Certificate
Agriculture Aquaculture &  Aquariums Beer Analysis Boilers & Cooling Towers Education Environmental Food & Dairy Honey & Maple Syrup Hydroponics Industrial Laboratory Plating Pools & Spas Printing & Graphics Water Conditioning Water Treatment Wine Analysis
Knowledge Base Videos Product Registration Warranty Information Software Information White Papers Customer Satisfaction Survey
Agriculture Aquaculture & Aquariums Beer Analysis Boilers & Cooling Towers Education Environmental Food & Dairy Hydroponics Industrial Laboratory Plating Pool & Spas Printing & Graphics Water Conditioning Water Treatment Wine Analysis
 Search By Accuracy
 Parameter:  Accuracy:  
 

Products By Category

HANNA Overstock

Home > Education > Bench Meters

HI 2221

Calibration Check™ pH/ORP/Temperature Benchtop Meter


Click to Buy      Get a Quote


  • pH Calibration Check™
  • On-screen electrode condition and response time
  • Up to five point calibration with seven standard buffers
  • Diagnostic alerts through icons
  • Automatic Temperature Compensation
  • GLP features
  • PC interface via USB

 

A properly manufactured and maintained pH electrode will retain its measuring integrity for a long time. As a result of many factors such as age, poor maintenance or improper handling, any electrode in time will lose its integrity.

The most common cause for pH measurement inaccuracies is an unclean or improperly cleaned electrode. This is very important to note, because during calibration, the instrument assumes that the electrode is clean and that the standardization curve created during the calibration process will remain a valid reference until the next calibration.

A dirty electrode or wrong calibration approach can contribute to buffer solution contamination. A contaminated buffer solution can present a major problem during calibration due to the fact that it is considered the only reference.

The HI 2221 is a pH benchtop meter featuring our exclusive Calibration Check™ diagnostics for both pH?electrodes and buffer solutions during calibration. This instrument compares the characteristics of the pH electrode from one calibration to the next. In the case of large variances in the electrode condition, it alerts the user that the electrode needs to be properly cleaned prior to calibration and measuring.

The second feature is to detect if the calibration buffer solution is contaminated. After calibration, the probe condition is evaluated and an indicator is displayed informing the user of the overall pH electrode status.

This instrument can measure using ORP electrodes (pH channel input), due to it’s capability to measure mV with a resolution up to 0.1 mV.

This meter also features five point calibration with seven standard buffers, Automatic Temperature Compensation and GLP capabilities that allow for the storage and retrieval of all data regarding pH. With a built-in logging function, measurements are stored in non volatile memory and can be transferred to a PC through the USB port.

Order Information:
HI 2221-01 (115V) and HI 2221-02 (230V) and are supplied with HI 1131B pH electrode, HI 7662 temperature probe, HI 76404N electrode holder, HI 70004 pH 4.01 buffer solution sachet, HI 70007 pH 7.01 buffer solution sachet, HI 700661 cleaning solution sachet, HI 7071S electrolyte solution (30 mL), 12 VDC adapter and instructions.

  • Specifications
  • MSDS
  • Accessories
  • Downloads
Range pH – 2.00 to 16.00 pH
mV ± 699.9 mV; ± 2000 mV
Temperature – 20.0 to 120.0 °C
Resolution pH 0.01 pH
mV 0.1 mV (± 699.9 mV); 1 mV (± 2000 mV)
Temperature 0.1 °C
Accuracy pH ± 0.01 pH
mV ± 0.2 mV (± 699.9 mV); ± 1 mV (± 2000 mV)
Temperature ± 0.2 °C (excluding probe error)
pH Calibration   Up to 5 point calibration, 7 standard buffers available (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45)
Temperature Compensation   Manual or automatic from -20 to 120°C
Temperature Probe   HI 1131P glass body, single junction, refillable with BNC connection and 1 m (3.3') Cable HI 7662 stainless steel probe
PC Connection   USB
Data Logging   100 points
Dimensions   235 x 222 x 109 mm (9.2 x 8.7 x 4.3")
Weight   1.3 kg (2.9 lb.)

Click on the links below to download the Safety Data Sheet.

Electrodes
HI 1043P Combination pH Electrode, Refillable w/ Double Junction
BNC Connection + pin
HI 1053P Combination pH Electrode, Refillable w/ Conical Tip
BNC + pin Connection
HI 1083P Combination pH Electrode w/ Micro Bulb
BNC + pin Connection
HI 1131P Refillable, Combination pH Electrode for the Laboratory and Beer Testing
BNC + pin Connection
HI 1332P pH Electrode for Chemicals, Quality Control, and Field
BNC + Pin Connection
Solutions
HI 5004L pH 4.01 buffer solution
HI 5007L pH 7.01 buffer solution
HI 5010L pH 10.01 buffer solution
HI 7061L General Purpose Cleaning Solution
1 x 500 mL bottle
HI 70300L Electrode Storage Solution
1 x 500 mL bottle
Accessories
HI 92000 Windows® Compatible Software
HI 920013 USB Cable
HI 76404N Electrode Holder for HI 42xx Type Bench Meters
Probes
HI 7662 Stainless Steel Temperature Probe

Manual: (Download)

Like us on facebook
Follow us on twitter
Subscribe to our RSS

Product Accessories

Electrodes
HI 1043P
Combination pH Electrode, Refillable w/ Double Junction
BNC Connection + pin
HI 1053P
Combination pH Electrode, Refillable w/ Conical Tip
BNC + pin Connection
HI 1083P
Combination pH Electrode w/ Micro Bulb
BNC + pin Connection
HI 1131P
Refillable, Combination pH Electrode for the Laboratory and Beer Testing
BNC + pin Connection
HI 1332P
pH Electrode for Chemicals, Quality Control, and Field
BNC + Pin Connection

Product Manuals
  Manual: Download





Top Products

HI 98331
Soil Test™ Direct Soil EC Tester

HI 9125
Portable pH/ORP Meter

HI 208
pH Meter for Education
with built in magnetic stirrer


HI 98280
GPS Multiparameter Meter with Fast Tracker™ Tag Identification System