Velleman DEM100, Руководство пользователя

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DEM100
V. 01
–
07/05/2015 5 ©Velleman nv
3. Replace the battery with a new 9 V battery.
4. Close the battery compartment.
Warning: Do not puncture batteries or throw them in fire as they
may explode. Do not attempt to recharge non-rechargeable
batteries (alkaline). Dispose of batteries in accordance with local
regulations. Keep batteries away from children.
7. Operation
1. Aim the IR sensor [B] at the target and press the measurement
trigger [D]
to display the target’s surface temperature. A red laser
spot appears on the target during measurement.
2. The distance-to-target ratio is 12:1. This means that, for example, at
12 cm, the target must be larger than 1 cm to get a proper
measurement. Make sure the target area is within this field of view.
3. The device can measure temperatures in °C or °F. Press the mode
key
[F] while the device is on to switch between measurement units.
The corresponding symbol (°C or °F) appears on the display.
4. When you release the measurement trigger [D] , the hold mode is
automatically activated: the last measurement value remains on the
display until you press the measurement key again, or until the device
shuts off automatically (after approx. 7 seconds).
5. Note that the display is always on, while the laser is only on during
measurement.
Remarks: The temperature

of a shiny or polished metal surface

through a transparent surface such as glass

of an object covered with frost, grime, oil
cannot be measured.
8. Cleaning and Maintenance

The IR sensor [B] is the most delicate part of the device and it shall be
kept clean at all times. To do this, only use a soft cloth or cotton bud
with a little water or medical alcohol.

Allow the lens to fully dry before using the device.

Wipe the other parts of the device regularly with a moist, lint-free cloth.
Do not use alcohol or solvents.

Do not submerge the device in water or any other liquid.

There are no user-serviceable parts. Contact your dealer for spare parts
if necessary.

The device shall be stored between
–
20° C and +65° C (
–
4° F to
+149° F).