The Hanna Instruments HI99162 is a durable, waterproof, and portable pH and temperature meter designed specifically for milk analysis. Automatic calibration is performed at one or two points with two sets of buffers. All calibration and measurement readings are automatically compensated for temperature variations. The split-level LCD displays both pH and temperature readings, along with indicators for reading stability, battery percentage, and calibration instructions. The HI99162 uses the PVDF body FC101D amplified pH electrode that offers numerous features that improve pH testing for milk producers.
Automatic Temperature Compensation
Automatic, one or two-point calibration
The measurement of pH in milk is important in testing for impurities, spoilage, and signs of mastitis infection. While there are a number of factors that affect the composition of milk, pH measurements can help producers understand what might be causing certain compositional changes. pH measurement is commonly performed at various points in a milk processing plant.
Fresh milk has a pH value of 6.7. When the pH value of the milk falls below pH 6.7, it typically indicates spoilage by bacterial degradation. Bacteria from the family of Lactobacillaceae are lactic acid bacteria (LAB) responsible for the breakdown of the lactose in milk to form lactic acid. Eventually when the milk reaches an acidic enough pH, coagulation or curdling will occur along with the characteristic smell and taste of “sour”milk.
Waterproof - The HI99162 is a waterproof meter rated IP67 for immersion in up to one meter of water for 30 minutes.
Automatic Calibration - One or two-point calibration is automatic to two selectable buffer sets.
Automatic Temperature Compensation – An integrated temperature sensor allows for automatic temperature compensation of pH measurements.
Multi-Level LCD Display - The split-level LCD displays both pH and temperature readings, along with indicators for reading stability, battery percentage, and calibration instructions.
On-Screen Tutorial - Clear tutorial messages and directions are available on-screen to quickly and easily guide users through setup and calibration.
Battery Error Prevention System - The meter will automatically shut off if there isn’t enough power to obtain an accurate measurement.
Battery Life Indicator - The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.
HI99162 is supplied with FC101D pH probe with internal temperature sensor, batteries, instruction manual, and rugged carrying case.
|Battery Type/Life||1.5V (3) AAA / approximately 1200 hours of continuous use; auto-off after 8 minutes of non-use|
|Dimensions||152 x 58 x 30 mm (6.0 x 2.3 x 1.2”)|
|Electrode/Probe||FC101D pre-amplified pH probe with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included)|
|Environment||0 to 50°C (32 to 122°F); RH max 100%|
|pH Accuracy||±0.02 pH|
|pH Calibration||automatic, at one or two points with two sets of buffers (standard 4.01, 7.01,10.01 or NIST 4.01, 6.86, 9.18)|
|pH Range||-2.00 to 16.00 pH|
|pH Resolution||0.01 pH|
|Temperature Accuracy||±0.5°C (up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F (outside)|
|Temperature Compensation||automatic from -5.0 to 105.0ºC (23 to 221ºF)|
|Temperature Range||-5.0 to 105.0°C / 23.0 to 221.0°F|
|Temperature Resolution||0.1°C / 0.1°F|
|Weight||205 g (7.2 oz.)|