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The distance-to-target ratio is 8:1. This means that, for example, at
8 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.
The device can measure temperatures in °C or °F. Press the mode
key [2] while the device is on to switch between measurement units. The
corresponding symbol (°C or °F) appears on the display.
The maximum measured value is always shown at the bottom of the
display, next to the 'MAX' indicator.
When you release the measurement key [5], 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. 15 seconds).
Note that the display is always on, while the laser is only on during
measurement.
7. Batteries
This device is battery-operated, using 2 type AAA 1.5 V batteries.
It incorporates a low battery indicator as follows:
Batteries OK: measurements are possible.
Batteries low: batteries need to be replaced, but measurements
are still possible.
Batteries exhausted: batteries need to be replaced, measurements
are no longer possible.
To replace the batteries, proceed as follows:
1. Wait until the device powers off automatically (about 15 s).
A malfunction may occur if you replace the batteries while the
device is on. In this case, reset the device. See 'Troubleshooting'
for more information.
2. Open the battery compartment by sliding the battery cover [6]
downwards.
3. Replace the batteries by two new type AAA 1.5 V batteries.
4. Slide the battery cover back in place.
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.
8. Troubleshooting
'Hi' or 'Lo' is displayed when the temperature being measured
is outside of the range of the device (see 'Technical
Specifications').
V. 02 – 14/10/2013
DVM439
4
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