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ENGLISH
Emissivity/ Setting Emissivity
Emissivity describes the energy-emitting characteristics of
materials. Most (90% of typical applications) organic materials
or non-shiny surfaces have an emissivity of 0.95 in the default
setting. Inaccurate readings will result from measuring shiny
or polished metal surfaces. To compensate, cover the surface
to be measured with masking tape or flat paint. Allow the tape
or paint to reach the same temperature as the surface it is
covering. Then measure the temperature of the covered surface.
Substance Emissivity Substance Emissivity
Asphalt 0.90 - 0.98 Brick 0.93 - 0.96
Concrete 0.94 Cloth (black) 0.98
Cement 0.96 Human skin 0.98
Sand 0.90 Lather 0.75 - 0.80
Earth 0.92 - 0.96 Charcoal
(powder)
0.96
Water 0.92 - 0.96 Lacquer 0.80 - 0.95
Ice 0.96 - 0.98 Lacquer
(matt)
0.97
Snow 0.83 Rubber (black) 0.94
Glass 0.90 - 0.95 Plastic 0.85 - 0.95
Ceramic 0.90 - 0.94 Timber 0.90
Marble 0.94 Paper 0.70 - 0.94
Plaster 0.80 - 0.90 Textiles 0.90
Mortar 0.89 - 0.91
You can adjust the thermometer’s emissivity setting value so it
can match the type of surface to be measured.
How to Set Emissivity
1. When the thermometer is on, press and hold down the
MODE button until the symbol flashes, then release the
button.
HOW TO SET THE THERMOMETER
Setting the High Alarm and Low Alarm
1. After the thermometer has been turned on, press and hold
down the MODE button until the symbol flashes, then
release the button.
2. Press the MODE button until LAL appears and flashes, now
the present low alarm value is being shown on the bottom
display.
3. Press the button to decrease or the button to
increase the low alarm value.
NOTE: Press and hold down the or button for fast
adjustment.
4. After setting the low alarm value, press the MODE button.
HAL flashes and the high alarm value is shown on the
bottom display. Use the same method of Step 3 to adjust
the high alarm value.
• To enable or disable the laser function, press button
while pulling and holding the trigger. When the laser
function is enabled, the symbol appears.
3 Button
• Used to change temperature units from Fahrenheit to
Celsius.
• When setting emissivity ( ), high alarm value (HAL), or low
alarm value (LAL), press this button to decrease the
value to be set.
4 MODE Button
• Each time you pull the trigger (for > 1 sec) to take
measurements, the thermometer records the maximum
(MAX), minimum (MIN), the differential (DIF) between the
maximum and the minimum, and the average (AVG) of
all readings taken during this pull. These data are stored
in memory and can be recalled with the MODE button
until you pull the trigger (> 1 sec) once more. When you
pull the trigger (> 1 sec) once more, all these data will be
erased from memory and the thermometer will start a new
recording.
• When you pull and hold the trigger, the reading on the
main display will update every second with the temperature
of the target surface, and when you release the trigger, the
last reading is locked until you take new measurement or
the thermometer turns off automatically.
• You can press the MODE button to display the maximum
(MAX), average (AVG), minimum (MIN), difference (DIF), low
alarm value (LAL) and high alarm value (HAL) sequentially
on the bottom display. The process is illustrated in Figure A.
NOTE:
• To read value correctly, please observe the bottom display
carefully to see whether the negative sign „-” and the
decimal point appear.
• After you disconnect the battery from the thermometer for
a while, all the settings will be restored to default values
and all the recorded measurement data will be erased from
memory.
5. If the temperature of target surface reaches or is lower than
the low alarm value, icon will appear and flash and the built-
in buzzer will beep and the LCD will momentarily turn blue
when you press and hold the trigger. If the temperature of
target surface reaches or is higher than the high alarm value,
icon will appear and flash and the buzzer will beep and the
LCD will momentarily turn red when you press and hold the
trigger.
6. At any time, you can press and hold down the MODE
button to exit setting mode.
NOTE:
• Alarm accuracy is ± 1°C (or ± 2 °F).
• The low and high alarm values can be set only within the
thermometer’s measurement range.
• The high alarm value must be higher than the low alarm
value.
