HI 99550 is used for non-contact measurement of the temperature of non-metal objects. Suitable for the non-contact measurement of temperature of food, chemicals, plastics, paper, wood, glass, rubber, metal coated materials, etc.
This document is the instruction manual for the Hanna Instruments HI 99550 Non-Contact Infrared Thermometer. It provides a general description of the device's components, including the infrared sensor, LCD display, and buttons. The manual details how to perform temperature measurements using the 3:1 distance-to-spot ratio and explains how to handle emissivity for reflective surfaces.
| Range | -10 to 300 °C / 14 to 572 °F |
|---|---|
| Resolution | 1° C, 1° F |
| Accuracy | +/-2% of reading or +7/+3°C/°F |
| Emissivity | 0.95 |
| Wave Length | 6 to 14 µm |
| Response Time | Typical 1 second |
| Optic Coefficient | 3:1 |
| Dimensions | 143 x 80 x 38 mm |
The instrument has a 3:1 optic coefficient, meaning the diameter of the measured area is one third of the distance between the sensor and the object.
To compensate for reflectivity on polished surfaces, it is advisable to cover the object with black paint or black adhesive tape.
A blinking 'VW' on the display indicates that the battery level is low.