This document is an instruction manual for a Hanna Instruments product, providing information on the importance of reading the manual before using the instrument and contacting technical support if needed. It also mentions the compliance of the instrument with directives and the warranty details.
The Hanna Instruments HI 991003 is a portable pH/mV meter featuring a unique Sensor Check function to determine electrode status. It includes extended measurement ranges, a waterproof compact casing, and a large dual-line LCD. The device comes with a built-in temperature sensor and an amplified pH/ORP/temperature probe (HI 1297D) to ensure noise-free measurements.
| Range | -2.00 to 16.00 pH |
|---|---|
| Resolution | 0.01 pH |
| Accuracy | +0.02 pH (@20°C/68°F) |
| Battery Life | Approx. 1500 hours |
| Dimensions | 150 x 80 x 36 mm |
All Hanna Instruments meters are warranted for two years against defects in workmanship and materials.
Use the Sensor Check feature by setting the meter to pH-mV range and measuring the offset and slope values.
When the battery level is below 5%, the symbol on the bottom left of the LCD blinks to indicate a low battery condition.