Velleman DVM8838 Manuel d'utilisateur télécharger pdf (Page 4)

DVM8838

00 (23/10/2008) 4 Velleman

• 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

Refer to the drawings on page 2 of this manual.

1 IR sensor 6 mode button

2 laser pointer beam 7 laser/backlight button

3 LCD display 8 measurement trigger

4 down button 9 grip

5 up button 10 battery cover

A hold indication F °C or °F indication

B measuring indication G high and low alarm indication

C emissivity indication and value H MAX, MIN, DIF, AVH, HAL and LAL value

D battery, lock and laser ON indication I indication for H

E backlight ON indication J current measurement value

K °C and °F switch M alarm set switch

L lock on/off switch

6. Operation

• 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 Emissivity

(*)

MAX Highest measured value

MIN Lowest measured value

DIF Difference between the highest and lowest measured value

AVG Average value of the temperature

HAL Higher alarm limit

LAL Lower alarm limit

(*)

For more information on emissivity, refer to §7 Useful information.

• 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.

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Velleman DVM8838 Manuel d'utilisateur Page 4

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