Power Supply; Initial Operation - Bosch GTC 400 C Professional Manual Original

OBJ_BUCH-3136-002.book Page 19 Tuesday, August 22, 2017 6:26 PM
Assembly

Power Supply

The measuring tool can be operated using either commercial-
ly available batteries (LR6 AA batteries or similar) or using a
Bosch Li-ion rechargeable battery.
Operation with Battery Adapter (Removable)
(see figure A)
The batteries are inserted into the battery adapter.
 The non-rechargeable battery adapter is intended only
for use in designated Bosch measuring tools and must
not be used with power tools.
To insert the batteries, slide the cover of the battery adapter
21 into the battery port 18. Place the batteries in the cover as
per the illustration on the sealing cap 20. Slide the sealing cap
over the cover until you feel it click into place and it is flush
with the handle of the measuring tool.
To remove the batteries, press the release buttons
19 of the sealing cap 20 and pull off the sealing
cap. In doing so, make sure that the batteries do
not fall out. To do this, hold the measuring tool with
the battery port 18 facing upwards. Remove the
batteries. To remove the inside cover 21 from the
battery port 18, reach into the cover recess 22 and pull it out
of the measuring tool by applying light pressure to the side
wall (see figure B).
Note: Do not use any tools (e.g. a screwdriver) to remove the
battery, as this could break the casing.
Always replace all batteries at the same time. Only use batter-
ies from one brand and with the identical capacity.
 Remove the batteries from the measuring tool when
not using it for extended periods. When storing for ex-
tended periods, the batteries can corrode and self-dis-
charge.
Operation with Battery Pack (see figure C)
Note: Use of battery packs not suitable for the measuring tool
can lead to malfunctions of or cause damage to the measuring
tool.
Note: The battery pack is supplied partially charged. To en-
sure full capacity of the battery pack, completely charge the
battery pack in the battery charger before using for the first
time.
 Use only the chargers listed in the technical data. Only
these battery chargers are matched to the lithium-ion bat-
tery of your measuring tool.
The lithium-ion battery pack can be charged at any time with-
out reducing its service life. Interrupting the charging proce-
dure does not damage the battery pack.
 Following the automatic shut off of the measuring tool,
do not continue to press the On/Off button. The battery
can be damaged.
To insert the charged battery pack 23, slide it into the battery
port 18 until you feel it engage and it is flush with the handle
of the measuring tool.
Bosch Power Tools
To remove the battery pack 23, press the unlocking buttons
19 and pull the battery pack out of the battery port 18. Do not
use force to do this.
Battery Status Indicator
The battery status indicator f on the display shows the charg-
ing state of the batteries or battery pack 23.
Indication Capacity
>2/3
≤2/3
≤1/3
≤10 %
Changing the Batteries or Battery Pack
Operation
 Protect the measuring tool against moisture and direct
sun light.
 Do not subject the measuring tool to extreme tempera-
tures or variations in temperature. As an example, do
not leave it in vehicles for a long time. In case of large vari-
ations in temperature, allow the measuring tool to adjust to
the ambient temperature before putting it into operation.
In case of extreme temperatures or variations in tempera-
ture, the accuracy of the measuring tool can be impaired.
 Make sure that the measuring tool is correctly acclima-
tised. In the event of severe temperature fluctuations or
environmental conditions which vary to a large degree, the
measurement accuracy of the measuring tool may be im-
paired until it is fully acclimatised again.
 Avoid hard knocks to the measuring tool or dropping it.
After severe external influences and in the event of abnor-
malities in the functionality, you should have the measur-
ing tool checked by an authorised Bosch after-sales ser-
vice agent.

Initial Operation

Switching On and Off
To take a measurement, fold the protective cap 1 upwards.
Make sure that the infrared measuring area is not closed
off or covered while working.
To switch on the measuring tool, press the On/Off button 9.
A start sequence will appear in the display 14. After the start
sequence, the measuring tool will immediately begin to meas-
ure and will measure continuously until it is switched off.
Note: In the first few minutes, the measuring tool may self-
calibrate several times, as the sensor temperature and ambi-
ent temperature have not yet been brought into line. Perform-
ing calibration again enables precise measurement. The ther-
mal image freezes briefly during calibration.
To switch off the measuring tool, press the On/Off button
again. The measuring tool saves all settings and then switches
itself off. Close the protective cap 1 to transport the measur-
ing tool safely.
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1 609 92A 3RD | (22.8.17)