Operation - Velleman DVM8838 Bedienungsanleitung

• LCD display with backlight
• data-hold, auto power-off and lock-on function
• MIN, MAX, DIF and record functions
• adjustable emissivity
• high and low alarm
Overview
5.
Refer to the drawings on page 2 of this manual.
1 IR sensor
2 laser pointer beam
3 LCD display
4 down button
5 up button
A hold indication
B measuring indication
C emissivity indication and value
D battery, lock and laser ON indication
E backlight ON indication
K °C and °F switch
L lock on/off switch

Operation

6.
• Hold the thermometer by the grip [9] and point the IR sensor [1] towards the surface of
which the temperature needs to be measured.
• Pull and hold the measurement trigger [8]. The LCD display [3] shows the current
temperature [J].
• During measurement, the word 'SCAN' [B] is visible in the LED display. When the
measurement stops (trigger [8] released), the word 'HOLD' [A] is shown. The last
measured value will remain on the display until the measurement trigger [8] is pulled
again, or when the thermometer powers-off automatically (after ± 7 seconds).
• Depending on the mode, the bottom of the screen shows the MAX, MIN, DIF, AVH, HAL and
LAL value. Use the mode button [6] to scroll through the modes of the device. The mode
[I] and corresponding value [H] are shown on the display.
EMS
MAX
MIN
DIF
AVG
HAL
LAL
• To set EMS, HAL or LAL, use the up [5] or down [4] button to adjust the value and press
the mode button [6] again to save the value and go to the next item. To cancel mode
selection, pull the measurement trigger [8]. Pushing the mode button [6] after setting the
lower alarm limit will start the set-up cycle again.
00 (23/10/2008)
(*)
Emissivity
Highest measured value
Lowest measured value
Difference between the highest and lowest measured value
Average value of the temperature
Higher alarm limit
Lower alarm limit
(*)
For more information on emissivity, refer to §7 Useful information.
DVM8838
6 mode button
7 laser/backlight button
8 measurement trigger
9 grip
10 battery cover
F °C or °F indication
G high and low alarm indication
H MAX, MIN, DIF, AVH, HAL and LAL value
I indication for H
J current measurement value
M alarm set switch
4
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Velleman