Instructions

21 20
Infrared Forehead Thermometer THD2FE / 15.2024.02
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Infrared Forehead Thermometer THD2FE / 15.2024.02
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8.1 Battery replacement
• The battery symbol appears permanently on the display.
• Change the batteries when the empty battery symbol appears on the display.
• Confirm the unit is switched off before changing battery.
• Please follow the instructions on the section “Getting started”.
9. Troubleshooting
Display Problem Solution
No display ➜ Press the ON button to
switch on the device
➜ Ensure that the battery
polarity is correct
➜ Change the batteries
Er Er 5…9 ➜ Remove the batteries,
The system is not wait for 1 minute and
functioning properly. restart the device
Er 1 Measurement before ➜ Wait for ”Er1” to
device stabilisation disappear
Er 3 The ambient temperature ➜ Allow the thermometer to
is not within the range rest in a room for at least
between 10°C and 40°C 15 minutes at a room
(50°F…104°F). temperature between
10°C and 40°C
(50°F…104°F)
Hi 1. In forehead mode:
Temperature taken is
higher than +42.2°C (108°F)
7.5 Mute mode
• To enable the mute function, hold the ON button until the mute symbol flashes.
The mute symbol remains on the display and the signal tone is deactivated.
• Use the same process to disable the mute function and reactivate the signal
tone.
Please note:
• If you press and hold the ON button for longer, OFF will appear on the display
and the unit will be switched off without setting the mute mode.
7.6 Measuring surface temperature
• After power on, press and hold the ON button, and then press the START but-
ton at the same time. The surface mode symbol appears on the display.
• Simply aim at the target and press the START button. You will get the surface
temperature within one second.
• If you keep the START button pressed, the measured value is continuously
updated.
Please note:
• This mode shows the actual and unadjusted surface temperature which is dif-
ferent from body temperature.
• To get the most accurate temperature reading, aim at the target as near as
possible.
• Not suitable for measuring shiny or polished metal surfaces (stainless steel,
aluminium, etc.).
• The device cannot measure through transparent surfaces such as glass or
plastic. It will measure the surface temperature of the glass instead.
8. Care and maintenance
• The sensor is the most delicate part of the infrared thermometer. Please pro-
tect the sensor part from dirt.
• For cleaning, please use a cotton swab soaked with medical alcohol (70-75%).
• Allow the sensor to dry completely for at least 1 minute.
• Clean the rest of the unit with a soft, slightly damp cloth. Do not use solvents
or scouring agents.
• Remove the batteries if you are not going to use the device for a long period
of time.
full half full empty
TFA_No. 15.2024_Anleitung 04.05.2020 13:32 Uhr Seite 11