Double Junction pH Electrode
The HI84532 is supplied with the HI1131B refillable, double junction, combination pH electrode. By design, the HI1131B has a spherical tip for use in aqueous or liquid solutions. This versatile electrode provides a wide surface of contact with a sample and is ideal for direct measurements or titrations in the beverage industry.
Custom pH Calibration
According to AOAC International the titration endpoint for fruit products is pH 8.1. The HI84532 uses a custom calibration point of pH 8.20. The preprogrammed pH 4.01 and pH 8.20 calibration points allows for calibration of the meter that brackets the pH readings.
Good Laboratory Practice
The HI84532 offers comprehensive GLP information including date and time of the last pH electrode and dosing pump calibrations. Tracking calibrations are critical to have confidence in the results obtained from titrations. The GLP data is stored along with any logged readings.
Piston Driven Dosing Pump
The heart of the HI84532 is the piston driven burette pump. This type of dosing system uses a motor in which each dose is very precisely controlled and the volume dispensed is accurately determined. This titrant is dynamically dosed, where titrant is delivered in larger doses at the start of the titration and smaller doses near the end point. With larger doses in the beginning of the titration, the speed of the titration is increased, where smaller doses near the end point allow for more time for the titrant and analyte to react. Smaller doses also prevent the over titration of a sample and a more accurate determination of titrant volume used.
Automatic Stirrer
The built-in stirrer is automatically maintained at a speed of 600 rpm, regardless of the viscosity of the solution being titrated.