This document is the user manual of HI 982401 online, waterproof ORP meter, which introduces the use method, maintenance method, warranty policy and other information of the instrument.
The Hanna Instruments HI 982401 is an on-line, waterproof ORP meter designed for monitoring oxidation-reduction potential in applications such as swimming pools. It features a sealed IP54 housing and operates on a 12 Vdc power supply. The unit is factory calibrated and includes a red alarm LED that blinks when the measured ORP value falls below a user-adjustable setpoint.
| Range | +999 mV |
|---|---|
| Resolution | 1 mV |
| Accuracy | +5 mV |
| Setpoint Range | 350 to 850 mV |
| Casing Rating | IP54 |
| Power Supply | 12 Vdc adapter |
| Dimensions | 86x 110 x 43 mm |
| Weight | 150 g |
Yes, the meter is factory calibrated and does not need recalibration.
The red alarm LED blinks when the measured ORP value is lower than the setpoint.
It is recommended to clean the ORP electrode monthly to minimize clogging and provide longer life.