Errors - Causes And Corrective Measures; Glossary Of Terms - Bosch GTC 400 C Professional Manual Original

system requirements for a Wi-Fi connection can be found on
the Bosch website at www.bosch‑professional.com/thermal.
To activate or deactivate the Wi-Fi connection on the meas-
uring tool, call up the main menu, use the buttons to
select <WiFi> and activate or deactivate it. The indicator (d)
Errors – Causes and Corrective Measures
In the event of a fault, the measuring tool will restart and can then continue to be used. If the fault persists, the following over-
view may help you.
Error Cause
Measuring tool cannot be Battery pack or batteries
switched on. empty
Battery pack too hot or too
cold
Measuring tool too hot or too
cold
Image memory full
Image memory defective
Measuring tool faulty
Measuring tool cannot be con- Measuring tool not recognised
nected to a computer. by computer.
USB port or USB cable defect-
ive

Glossary of terms

To find out more, visit:
www.bosch-professional.com/thermal.
Infrared thermal radiation
Infrared thermal radiation is electromagnetic radiation emit-
ted by every body above 0 Kelvin (−273 °C). The amount of
radiation depends on the temperature and the emissivity of
the body.
Emissivity
The emissivity of an object depends on the material and the
structure of its surface. This specifies how much infrared
thermal radiation the object emits compared with an ideal
radiant warmer (black body, emissivity ε = 1) and accord-
ingly has a value between 0 and 1.
Thermal bridge
A thermal bridge is defined as a position on the external wall
of a building, where there is a localised increase in heat loss
due to a structural defect.
Thermal bridges can lead to an increased risk of mould.
Bosch Power Tools
appears in the display when the Wi-Fi is activated. Ensure
that the Wi-Fi interface is activated on your mobile device.
The connection between the mobile device and the measur-
ing tool can be established after the Bosch application has
been started (if Wi-Fi modules are activated). To do this, fol-
low the instructions in the application (app).
Corrective measure
Charge the battery pack or change the batteries.
Allow the battery pack to reach the correct temperature or
change it.
Allow the measuring tool to reach the correct temperature.
Transfer the images to another storage medium (e.g. com-
puter) when necessary. Then delete the images in the internal
memory.
Format the internal memory by deleting all images. If the
problem persists, send the measuring tool to an authorised
Bosch after-sales service centre.
Send the measuring tool to an authorised Bosch after-sales
service centre.
Check whether the driver on your computer is up to date. It
may be necessary to have a newer operating system version
on your computer.
Check whether the measuring tool can be connected to a dif-
ferent computer. If not, send the measuring tool to an author-
ised Bosch after-sales service centre.
Reflected Temperature/Reflectivity of an Object
The reflected temperature is the thermal radiation that is not
emitted by the object itself. Depending on the structure and
material, background radiation is reflected in the object to
be measured, therefore distorting the actual temperature
result.
Distance from the Object
The distance between the object being measured and the
measuring tool influences the captured area size per pixel.
You can capture increasingly large objects as the distance
from the object becomes greater.
Distance (m) Size of infrared
pixels (mm)
0.5 3
1 6
2 12
5 30
English | 23
Infrared range
width × height
(m)
–0.5 × 0.4
–1 × 0.75
–2.05 × 1.5
–5.1 × 3.8
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