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pH Accessory guide

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Read the most detailed informations about methods and tools used in every industry: agriculture, food and beverage, process equipment and laboratory equipment. Subscribe to our newsletter to keep up to date!

Clean Regularly
The most common cause for pH measurement inaccuracies is an unclean or improperly cleaned
electrode. A properly leaned
electrode will ensure that the sensor tip is reading correctly, the junction has optimal flow, and calibration will be accurate.

Hanna carries three lines of calibration solutions: HI50XX are certified technical buffers that range from 1.00 to 13.00 pH and an accuracy of +/- 0.01 pH. HI60XX are certified millesimal buffers that range from 1.000 to 13.000 pH and an accuracy of +/- 0.002 pH. Finally, HI70XX are general purpose calibration buffers that range from 1.68 pH to 10.01 pH. 

Hanna buffers are standardized with high precision meters calibrated to NIST references. Hanna caries buffers in 20mL Sachet, 230mL, 500mL, 1L, and 1 Gallon sizes. Most buffers are available with certificates, in FDA bottles, and have a shelf life of up to 5 years.

SolutionApplication/purpose
HI7061LGeneral Purpose 
HI7073LProteins 
HI70630LAcid Cleaning for Meat, Grease, and Fats 
HI70631LAlkaline Cleaning Solution for Meat, Grease, and Fats 
HI7074LInorganic Substances 
HI7077LOil and Fats 
HI70635LWine Deposits 
HI70640LMilk Deposits
HI70641LCleaning and Disinfection for Dairy 
HI70642LCheese residues 
HI70663LSoil Deposits
HI70670LSalt deposits

 

Calibrate Often
Calibrate to correctly maintain electrode operation for accurate and
reproducible readings. 

Condition Always
Keep the glass bulb and junction of your pH electrode hydrated; this reduces junction clogging and improves response times.
Never store electrodes in pure water (deionized), RO, distilled, pure, or demi water.

Use HI70300L electrode storage solution to properly maintain your electrode. 
Electrolyte fill solutions are required for refillable electrodes. Keeping a proper fill level ensures proper head pressure to keep the liquid junction flowing. Loosen the cap when performing calibration or a measurement to improve head pressure.
Use HI7071L for single junction electrodes or HI7082 for double junction pH electrodes

Choose Stirrer
The response time and accuracy of a reading may be impacted when a sample is not agitated. Hanna recommends using magnetic stirrers to ensure that the pH buffer or sample is mixed well. The movement of the solution will improve the response time of the electrode in the solution.

Item #Description
HI190MSquare stirrer for up to 1-liter capacity
HI181-1Round stirrer with electrode arm for up to 1-liter capacity
HI180-1Round stirrer for up to 1-liter capacity

Choose Electrode
Most meters come with general
purpose electrodes. Although these work well for many applications, there are a number of applications that require specialized electrodes such as food, beverage, cosmetics, water treatment, plating, etc. Several factors play into choosing the proper electrode: sample temperature, viscosity, sample preparation, and sample composition are all important to consider. 

Before purchasing the appropriate electrode please be sure to check the type of connector that your meter accepts: BNC, DIN, Quick DIN, 3.5 mm digital, BNC + Pin, Screw or T-Type.

Item # ApplicationConnector type
HI1131XGeneral Purpose BNC, BNC+Pin, DIN, digital
HI1230XGeneral Purpose/Field BNC, DIN, digital
FC202XMilk, yogurt, dairy, meat, semi-solid foods DIN
FC200XMilk, yogurt, dairy, meat, semi-solid foods BNC, DIN, digital
HI1332XChemicals, field applications, QC BNC, BNC+Pin, DIN
HI1043XHydrocarbons, paints, solvents, sea water, strong acids/bases, tris buffer BNC, BNC+Pin, digital
HI1048XWine, juice BNC, BNC+Pin, DIN, digital
FC232XMeat, cheese, semi solid food samples DIN, digital
HI1053XFats, creams, soil samples, potable water, semi-solid samples, emulsion, low conductivity solutions, BNC, BNC+Pin, digital
HI1083XBiotechnology, Samples <100uL BNC, BNC+Pin
FC210XYogurt, Creams BNC
HI73127XGeneral purpose Pin, for use with HI9812x meters
HI1296XWastewater DIN

Choose Meter
The type of meter you use will have an impact on the readings you obtain. Hanna manufactures pH meters in different categories: testers, portable, benchtop, and process.
Each meter has different benefits
and price points.

Item #TypeApplicationDescription
HALOBluetooth meter/electrodeVariousHALO pH electrode with Bluetooth Smart technology interfaces with your iPhone,
iPad, iPod, Android
HI98128TesterGeneral purposeWaterproof tester with a replaceable electrode
ideal for field applications and basic pH testing
HI9814Portable meterAgriculture/hydroponicsQuick Calibration mode to calibrate pH, EC/TDS. $199
Hydroponics Amplified Electrode to resist electrical interference
HI9816x/HI991xxPortable meterSpecific applicationsWaterproof portable meter applications include; Soil, Plating, Milk, Yogurt, Cheese, Food & Dairy,
Drinking Water, Beer, Wine, Meat, Paper, Leather, Skin
HI9819xPortable meterIndustrial, Lab and fieldWaterproof and rugged, it’s the most popular
Portable meter Hanna manufactures. The HI9819X
series comes with a case that has all accessories
needed for measurement, logs up to 300 records,
calibrates up to 5 points, and has Cal Check.
The HI98191 is able to use any BNC electrode.
edge HI2002/HI2020hybridLab, industrial, field, education, foodThe best Hybrid meter in the market. Performs up to 5-point calibration. CAL Check, .001 pH resolution,
Wall-Mount capacitive touch tablet style meter. Transfer data to
Hybrid a computer or USB.
HI522xProfessional research gradeLabAvailable in 1 or 2 channel, HI522X are research grade
meters that allow for real time graphing, 5-point
calibration, PC connectivity, Cal CheckTM, and are fully customizable.

* CAL Check™ is a diagnostics system that ensures accurate pH readings every time. By alerting users to potential problems during the calibration process, the Cal CheckTM system eliminates erroneous readings due to dirty or faulty pH electrodes or contaminated pH buffer solutions during calibration. The meter
will display the electrode condition and response times and make recommendations accordingly.

Get your free pH accessory guide e-book here.

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