HT instruments HT3320 - Manual (Page 22)

HT3320
EN - 21
7.4. INFRARED TEMPERATURE MEASUREMENT
This mode allows rapidly measuring the IR temperature without using the in-built photo
camera, further to carrying out air temperature/humidity/dew point/wet bulb measurements
without saving them in the instrument’s memory.
1. Switch on the instrument and enter the “IR MEASUREMENT” mode
2. Set the desired values of the measurement parameters (see § 6)
3. Hold the meter and point it towards the object whose temperature is to be measured.
4. Press and hold the T key to start measuring, observing on the display the symbol
and the temperature value in the middle of the display, which varies in real time (see
Fig. 29)
Fig. 29: IR temperature measurement
5. Release the T key to stop the measurement and freeze the last read value. The display
shows the following symbol “ ”. The temperature values associated with fields AT,
RH%, DP and WB, if selected (see § 6.8, 6.9) are shown on the display.
6. The instrument displays the values of the fields MAX, MIN, MED, AVG and DIF, if
selected (see § 6.6, 6.7). The cursor on the graphic bar at the bottom of the display
indicates the MIN (on the left) and MAX (on the right) values and is dynamically
updated according to the measured temperature value.
7. In case continuous measurement is activated (see § 6.5), press the ENTER key,
followed by the arrow key
S to exit the mode or press the arrow key T to
enable/disable the laser pointer if activated in the relevant section (see § 6.4).