This document is an instruction manual for the HI 84181 ISE Potassium Meter, providing information on the instrument's specifications, principle of operation, functional description, startup, display codes, measurement procedure, fuse replacement, electrode conditioning and maintenance, accessories, and warranty.
The HI 84181 is a low-cost, easy-to-use instrument designed for automatic potassium analysis using an ion-selective electrode (ISE). It employs a double standard addition method to determine potassium concentration in samples such as wine. The device features automatic temperature compensation and includes all necessary reagents and accessories for immediate use.
| Range | 0.0 to 5.0 g/L (ppt) K* |
|---|---|
| Resolution | 0.1 g/l (ppt) K* |
| Accuracy | +5% of reading |
| Temperature Compensation | Automatic from 0 to 80 °C |
| Stirring speed | 500 rpm |
| Power supply | 220V/50Hz; 10VA |
The instrument uses a double standard addition method to determine potassium concentration.
If the temperature difference exceeds 3 °C and compensation is disabled, a warning icon blinks.
The instrument comes with reagents, an automatic pipette, tips, beakers, electrodes, and a temperature probe.