DVM8090 Rev. 01
21.01.2010 ©Velleman nv
6
• The memory display [F] default shows the average value AVG [G] of the
current measuring session. Press the Mode button to display the highest
measured values (MAX [G]). Press a second time to display the lowest
measured values (MIN [G]). Press again to display the difference
between maximum and minimum value (MAX-MIN [G]). Another press
on the Mode button will display the average value again.
Note: the memory values are reset when a new measurement starts
(when the SCAN/H-button is pushed).
Thermocouple-mode
• Insert the thermocouple (included) into the jack [3] (only one way
possible, do not force).
• Switch on the meter. If it starts up in IR- mode [A] then press the
TYPE/ON/OFF button again to enable thermocouple-mode ([B] is
shown).
• Hold the thermocouple against the target surface and read the
temperature [E].
• To place the meter in hold-mode [A], press the SCAN/H-button. The
current value is kept on the screen until the SCAN/H-button is pressed
again.
• The memory display [F] shows the current temperature of the
thermometer itself.
• The MODE- and LASER-button do not have any functionality in
thermocouple mode.
• Remove the thermocouple after use. Only handle the thermocouple by
the connector.
Both modes
• When the battery indicator [K] is shown, replace the batteries (see §9).
• Always place the sensor cover [1] back when the device is not in use.
6. Operation tips
• Do not touch the sensor [2] and keep the sensor away from possible
interfering sources e.g. a fan, heating element, body … Also, do not
expose the sensor to direct (sun)light as this will lead to false readings.
• Consider mounting the device on a tripod (not incl.) for longer and more
stable measurements.
• Make sure the device is at ambient temperature for accurate
measurements.
• Remove the batteries when the device is not used for a long time.
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