BOSCH GTC 600 C Professional Thermo Camera Instruction Manual

: June 14, 2024
: Bosch

BOSCH GTC 600 C Professional Thermo Camera

BOSCH-GTC-600-C-Professional-Thermal-Camera-PRODUCT

Product Information

Specifications
- Safety: Only qualified personnel should repair the measuring tool using original spare parts to ensure the safety of the tool.
- Do not: place the measuring tool on the battery as it may tip over and cause injuries.
- IP Rating: IP54 (except for the battery, in an upright position)
- Recommended batteries: GBA 10.8V, GBA 12V

Product Description

Installation
- To install the product:
- Charge the battery (refer to Image A)
Operation
- Power On/Off To turn on/off the measuring tool.
- Press the Power button (refer to Image B)
Measurement Preparation
- The default emissivity values on the measuring tool are reference values. Adjust as needed.
Measurement Conditions
- Ensure suitable measurement conditions for accurate results.
Temperature Scale
- Use the scale to assign temperatures during measurement.
Color Display Adjustment
- Adjust the color representation as desired.
Scale Fixation
- Fixate the scale for consistent measurement.
Measurement Functions
- Utilize the various measurement functions available.
- Documentation of Measurement Results
- Store and retrieve measurement results.
Usage Instructions
- To use the GTC 600 C Professional measuring tool:
- Ensure the battery is fully charged.
- Power on the tool by pressing the Power button.
- Adjust the emissivity values if necessary.
- Prepare suitable measurement conditions.
- Assign temperatures using the scale.
- Adjust the color display as desired.
- Fixate the scale for consistent measurement.
- Select the desired measurement function.
- Document and store measurement results if needed.
Frequently Asked Questions (FAQ)
- Q: What should I do if the measuring tool cannot be turned on?
- A: If the tool cannot be turned on, check if the battery is empty and charge it accordingly.
- Q: What should I do if the battery is too warm or too cold?
- A: If the battery is too warm or too cold, allow it to reach a suitable temperature or replace it with a new one.

OVERVIEW

Safety Instructions

All instructions must be read and observed. The safeguards integrated into the measuring tool may be compromised if the measuring tool is not used in accordance with these instructions. STORE THESE INSTRUCTIONS IN A SAFE PLACE.

Have the measuring tool serviced only by a qualified specialist using only original replacement parts? This will ensure that the safety of the measuring tool is maintained.
Do not use the measuring tool in explosive atmospheres that contain flammable liquids, gases, or dust. Sparks may be produced inside the measuring tool, which can ignite dust or fumes.
Do not open the battery. There is a risk of short-circuiting.
In case of damage and improper use of the battery, vapors may be emitted. The battery can set alight or explode. Ensure the area is well-ventilated and seek medical attention should you experience any adverse effects. The vapours may irritate the respiratory system.
If used incorrectly or if the battery is damaged, flammable liquid may be ejected from the battery. Contact with this liquid should be avoided. If contact accidentally occurs, rinse off with water. If the liquid comes into contact with your eyes, seek additional medical attention. Liquid ejected from the battery may cause irritation or burns.
The battery can be damaged by pointed objects such as nails or screwdrivers or by force applied externally. An internal short circuit may occur, causing the battery to burn, smoke, explode or overheat.
When the battery is not in use, keep it away from paper clips, coins, keys, nails, screws, or other small metal objects that could make a connection from one terminal to another. A short circuit between the battery terminals may cause burns or a fire.
Only use the battery with products from the manufacturer. This is the only way in which you can protect the battery against dangerous overload.
Only charge the batteries using chargers recommended by the manufacturer. A charger that is suitable for one type of battery may pose a fire risk when used with a different battery.
- Protect the battery against heat, e.g. continuous intense sunlight, fire, dirt, water, and moisture. There is a risk of explosion and short-circuiting.
Protect the measuring tool, particularly the area around the infrared lens, speaker, and microphone, from moisture, snow, dust, and dirt.
The reception lens could fog up or become contaminated and distort the measurements. Incorrect settings on the tool and other atmospheric influences may make the measurements inaccurate.
Object temperatures could be shown to be hotter or colder than they are, which may present a danger if touched.
High-temperature differences in a thermal image may cause even high temperatures to be shown in a colour associated with low temperatures. Coming into contact with such an area may cause burns.
Temperature measurements will only be correct if the emissivity setting matches the emissivity of the object.
Otherwise, object temperatures could be shown to be hotter or colder than they are, which may present a danger if touched.
Do not point the measuring tool directly at the sun or at high-performance CO₂ lasers. This may damage the detector.
Do not place the measuring tool on the rechargeable battery. It can easily tip over. The fall may cause injuries.
Keep the magnet away from implants and other medical devices, e.g. pacemakers or insulin pumps. The magnet generates a field that can impair the function of implants and medical devices.
Keep the measuring tool away from magnetic storage media and magnetically sensitive devices. The effect of the magnets can lead to irreversible data loss.
The measuring tool is equipped with a wireless interface. Local operating restrictions, e.g. in airplanes or hospitals, must be observed.

WARNING

Ensure that the coin cell is kept out of the reach of children. Coin cells are dangerous.
Coin cells must never be swallowed or inserted into any other part of the body.
If you suspect that someone has swallowed a coin cell or that a coin cell has entered the body in another way, seek medical attention immediately.
Swallowing coin cells can result in severe internal burns and death within 2 hours.
Ensure that coin cell replacement is carried out properly. There is a risk of explosion.
Only use the coin cells listed in this operating manual. Do not use any other coin cells or other forms of electrical power supply.
Do not attempt to recharge the coin cell and do not short-circuit the coin cell. The coin cell may leak, explode, catch fire, and cause personal injury.
Remove and dispose of the drained coin cell correctly. Drained coin cells may leak and damage the product or cause personal injury.
Do not overheat the coin cell or throw it into fire. The coin cell may leak, explode, catch fire, and cause personal injury.
Do not damage the coin cell and take the coin cell apart. The coin cell may leak, explode, catch fire, and cause personal injury.
Do not allow damaged coin cells to come into contact with water. Leaking lithium may mix with water to create hydrogen, which could cause a fire, an explosion, or personal injury.
If the coin cell holder cannot be closed correctly and fully, stop using the measuring tool, remove the coin cell, and have the measuring tool repaired.

Product Description and Specifications

Please observe the illustrations at the beginning of this operating manual.

Intended Use

This thermal imaging camera is designed for the contactless measurement of surface temperatures.
The displayed thermal image shows the temperature distribution in the thermal imaging camera’s field of view and therefore enables temperature deviations to be depicted in different colors.
When used correctly, this makes it possible to examine areas and objects in a contactless manner for temperature differences and discrepancies in order to make components and/ or any weaknesses visible, including:
- Thermal insulation and other types of insulation (e.g. locating thermal bridges)
- Active heating and hot water pipes (e.g. underfloor heating) in floors and walls
- Overheated electrical components (e.g. fuses or terminals)
- Faulty or damaged machine parts (e.g. overheating due to faulty ball bearings)
The measuring tool is not suitable for measuring the temperature of gases.
The measuring tool must not be used for human medical purposes.
Please find out about veterinary applications at www.bosch-professional.com/thermal. The measuring tool is suitable for indoor and outdoor use.

Product Features

The numbering of the product features shown refers to the illustration of the measuring tool on the graphic page.

Protective cap for visual camera and infrared sensor
Button cell holder
Serial number
Button cell holder screw
Flap for USB port
USB Type-C® porta)
Up arrow button
Measuring functions button Func
Switching temperature scale between automatic and fixed/right-hand function button
Right-hand arrow button
On/off button
Down arrow button
Save button
Left-hand arrow button
Microphone
Gallery button/left-hand function button
Display
Speaker
Battery bay
Battery release button
Battery
Pause/start measurement button
Infrared sensor
Visual camera
USB Type-C® cable
- a) USB Type-C® and USB-C® are trademarks of USB Implementers Forum.
- b) The accessories illustrated or described are not included in standard delivery.

Display Elements

(a) Time/date indicator
(b) Average temperature indicator
(c) Reflected temperature indicator
(d) Emissivity indicator
(e) Wi‑Fi® switched on/off indicator)
(f) Battery charge indicator
(g) Maximum surface temperature in the measuring range indicator
(h) Scale
(i) Minimum surface temperature in the measuring range indicator
(j) Fix temperature scale symbol
(k) Hotspot indicator (example)
(l) Crosshairs with temperature indicator
(m) Cold spot indicator (example)
(n) Gallery symbol
- a) Wi‑Fi® is a registered trademark of the Wi‑Fi Alliance®.

Technical Data

Thermal imaging camera	GTC 600 C
Article number	3 601 K83 5..
Resolution of infrared sensor	256 × 192 px
Thermal sensitivity)	≤ 50 mK
Spectral range	8–14 μm
Field of view (FOV)B)	45° × 35°
Focus distance)	≥ 0.3 m
Focus	Fixed
Thermal image refresh rate	9 Hz
Surface temperature measuring range)	–20 to +600 °C

Surface temperature measuring accuracy)C)D)

–20 to ≤ +10 °C

10 to ≤ 100 °C

+100 °C

| ****

±4 °C

±2 °C

±2 %

1 × voice note if applicable

Number of images in internal image memory| 600
Thermal imaging camera| GTC 600 C
---|---
Number of images with a 10 s voice note each in internal im- age memory| 350
Integrated visual camera resolution| 640 × 480 px
Rechargeable battery (Li-ion)| 10.8 V/12 V
Rechargeable battery operating time (Li-ion)F)G)| 6 h
USB port| 2.0
System time power supply| CR 2032 (3 V lithium battery)
Wireless connectivity| WLAN
Max. WLAN transmission power| < 20 mW
WLAN operating frequency range| 2402–2480 MHz
Weight according to EPTA-Procedure 01:2014| 0.64–0.75 kgF)
Dimensions (length × width × height)| 115 × 102 × 231 mm
Protection rating (excluding rechargeable batteries, in the vertical position)| IP54
Permitted environmental conditions

|
---|---
– Recommended ambient temperature during charging| 0 to +35 °C
– Operating temperature| –10 to +45 °C
– During storage with a rechargeable battery| –20 to +50 °C
– During storage without a rechargeable battery| –20 to +70 °C
Recommended rechargeable batteries| GBA 10,8 V

GBA 12 V

Recommended chargers| GAL 12… GAX 18…

A) In accordance with standard VDI 5585 (average)
B) In accordance with standard VDI 5585
C) At an ambient temperature of 20 to 23 °C and an emissivity of > 0.999, measuring distance: 0.3 m, operating time: > 5 min, aperture of 60 mm
D) Plus use-dependent deviation (e.g. reflection, distance, ambient temperature)
E) Only non-conductive deposits occur, whereby occasional temporary conductivity caused by condensation is expected.
F) Depends on the battery in use
G) At an ambient temperature of 20–30 °C
- Technical data determined using the battery that comes with the product.
- The serial number (3) on the type plate is used to clearly identify your measuring tool.

Assembly

Battery Charging (see Figure A)

Use only the chargers listed in the technical data. Only these chargers are matched to the lithium-ion battery of your measuring tool.
- Note: The use of batteries unsuitable for your measuring tool can lead to malfunctions or damage to the measuring tool.
- Note: The battery is supplied partially charged. To ensure the full capacity of the battery, completely charge the battery before the first use.
The lithium-ion battery can be charged at any time without reducing its service life. Interrupting the charging process does not damage the battery.
To insert the charged battery pack (21), slide it into the battery bay (19) until you feel it click into place and it is flush with the handle of the measuring tool.
To remove the battery pack (21), press the release buttons (20) and pull the battery pack out of the battery bay (19). Do not use force to do this.

Operation

Protect the measuring tool from moisture and direct sunlight.
Do not expose the measuring tool to any extreme temperatures or variations in temperature. For example, do not leave it in a car for extended periods of time. In case of large variations in temperature, allow the measuring tool to adjust to the ambient temperature before putting it into operation. The precision of the measuring tool may be compromised if exposed to extreme temperatures or variations in temperature.
Make sure that the measuring tool is correctly acclimatized.
In case of large variations in temperature, acclimatization can take up to 60 minutes. This may be the case, for example, if you store the measuring tool in a cool car and then perform a measurement in a warm building.
Avoid hard knocks to the measuring tool or dropping it. After severe external influences and in the event of abnormalities in the functionality, you should have the measuring tool checked by an authorized Bosch after-sales service agent.

Starting Operation

Switching On and Off

To take a measurement, fold the protective cap (1) upwards.
Make sure that the infrared sensor is not closed off or covered while working.
To switch on the measuring tool, press the on/off button (11). A start sequence will appear on the display (17). The measuring tool begins to take measurements as soon as the start sequence has finished and does so 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 ambient temperature have not yet been brought into line. Performing sensor calibration again enables precise measurement.
During this time, the temperature indicator may show ~. The thermal image will freeze briefly during sensor calibration. If the ambient temperature fluctuates significantly, this effect is increased. If possible, you should therefore turn on the measuring tool a few minutes before starting to
measure, so that the tool can stabilize thermally.
To switch off the measuring tool, press the on/off button (11) again. The measuring tool saves all settings and then switches itself off. Close the protective cap (1) to transport the measuring tool safely.
In the main menu, you can choose whether and after how long the measuring tool automatically switches off (see “Main Menu”, page 22).
If the battery pack or the measuring tool is not within the operating temperature range specified in the technical data, the measuring tool will switch off automatically after a brief warning (see “Errors – Causes and Corrective Measures”, page 24). Allow the measuring tool to reach the correct temperature and then switch it back on.

Measurement Preparations

Setting the emissivity for surface temperature measurements

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 accordingly has a value between 0 and 1.
To determine the surface temperature, the tool performs contactless measurements of the natural infrared thermal radiation emitted by the object at which the tool is aimed.
To ensure correct measurement, the emissivity setting on the measuring tool must be checked before every measurement and adapted to the measuring object if necessary.
The preset emissivities in the measuring tool are reference values.
You can select one of the preset emissivities or enter an exact numerical value. Set the required emissivity via the
→ menu (see “Main Menu”, page 22).
Temperature measurements will only be correct if the emissivity setting and the emissivity of the object match.
The lower the emissivity, the greater the effect of the reflected temperature on the measuring result. Always adjust the reflected temperature when changing the emissivity. Set the reflected temperature via the → menu (see “Main Menu”, page 22).
Temperature differences allegedly shown by the measuring tool may be caused by different temperatures and/or different emissivity levels. If the emissivity levels are very different, the depicted temperature differences may differ considerably from the actual temperature differences.
If there are multiple objects made of different materials or that have different structures in the measuring range, the displayed temperature values are only accurate for the objects that match the emissivity setting.
For all other objects (with different emissivity levels), the displayed color differences can be used as an indication of temperature relationships.

Information about the Measuring Conditions

Highly reflective or shiny surfaces (e.g. shiny tiles or polished metals) may significantly distort or impair the results shown.
If necessary, mask the measuring surface with a dark, matt adhesive tape that conducts heat well. Allow the tape to briefly reach the correct temperature on the surface.
Make sure that a favorable measuring angle is used on reflective surfaces in order to ensure that the thermal radiation reflected by other objects does not distort the result.
For example, the reflection of your own emitted body heat may interfere with the measurement when measuring head-on from a perpendicular position.
On a level surface, the outline and temperature of your body could therefore be displayed (reflected value), and these values do not correspond to the actual temperature of the measured surface (emitted value or real value of the surface).
Measuring through transparent materials (e.g. glass or transparent plastics) is fundamentally not possible. Consequently, the more suitable and stable the measuring conditions are, the more accurate and reliable the measurement readings are.
Not only do significant fluctuations in the temperature of the environmental conditions have an impact, but the accuracy can also be impaired by significant fluctuations in the temperatures of the object being measured.
Infrared temperature measurement is impaired by smoke, steam/high humidity, or dusty air.

Information for achieving improved measurement accuracy:

Move as close as possible to the object to be measured to minimize interfering factors between you and the surface to be measured.
Ventilate indoor areas prior to measurement, especially when the air is contaminated or extremely steamy. Once ventilated, allow the room to acclimatize for a while until it returns to the usual temperature.

Assigning Temperatures on the Basis of the Scale

A scale (h) is shown on the right-hand side of the display. The values at the top and bottom end are oriented to the maximum (g) and minimum (i) temperature recorded in the thermal image. For the scale, 99.9 % of the total pixels are evaluated.
Colors are assigned to temperature values with a uniform distribution in the image (linearly).
Different shades can therefore be used to assign temperatures within these two limit values. For example, a temperature that is exactly between the maximum and minimum values is assigned to the center color range of the scale.
To determine the temperature of a specific area, move the measuring tool so that the crosshairs with temperature display (l) are aimed at the required point or area.
In the automatic setting, the color spectrum of the scale is always distributed linearly (= uniformly) across the entire measuring range between the maximum and minimum temperatures.
The measuring tool displays all measured temperatures in the measuring range in relation to one another.
If heat is displayed as blue in the color palette in an area, for example in a color representation, this means that the blue areas are among the colder measured values in the current measuring range.
However, these areas may still be in a temperature range which could cause injuries in certain circumstances.
You should therefore always note the temperatures displayed on the scale or at the crosshairs themselves.

Functions

Adjusting the Colour Display

Depending on the measurement conditions, different color palettes may make it easier to analyze the thermal image and display objects or circumstances more clearly in the display.
This does not affect the measured temperatures. The only change is the way in which the temperature values are displayed.
To change the color palette, remain in measuring mode and press the right-hand (10) or left-hand (14) arrow button.

Superimposition of Thermal Image and Real Image
For improved orientation (= local assignment of the thermal image displayed), with matched temperature ranges, a real visual image can additionally be inserted.
Note: The superimposition of the real image and thermal image corresponds exactly at a distance of 0.55 m. If the tool is closer to or further away from the object being measured, this fundamentally results in misalignment of the real image and thermal image. This misalignment can be compensated for with the GTC Transfer Software.

The measuring tool camera offers you the following options:

Complete infrared image
- Only the thermal image is displayed.
Picture-in-picture
- The thermal image displayed is cropped and the surrounding area is shown as a real image. This setting improves the local assignment of the measuring range.
Transparency
- The thermal image displayed is placed on top of the real image in such a way that it is transparent. This enables improved detection of objects.
- You can select the setting by pressing the up (7) or down (12) arrow buttons.

Fixing the Scale

The color distribution in the thermal image is adjusted automatically but can be fixed by pressing the right-hand function button (9).
This enables a comparison to be made between thermal images taken under different temperature conditions (e.g. when checking several rooms for thermal bridges).
It also allows an extremely cold or hot object to be hidden in the thermal image. This object would otherwise distort the image (e.g. a radiator as a hot object when searching for thermal bridges).
To switch the scale back to automatic, press the right-hand function button (9) again. The temperatures are now dynamic again and adapt to the measured minimum and maximum values.

Measuring Functions
To call up further functions that may be helpful for the display, press the Func (8) button. Use the left-hand arrow button (14) or the right-hand arrow button (10) to navigate through the displayed options to select a function. Select a function and press the Func (8) button again. The following measuring functions are available:

< Automatic>
- Colors are distributed automatically in the thermal image.
< Heat Detector>
- Only the warmer temperatures in the measuring range are displayed as a thermal image in this measuring function.
- The area outside these warmer temperatures is shown as a real image in greyscale.
- The depiction in grey scale prevents colored objects from being wrongly associated with temperatures (e.g. a red cable in the control cabinet when searching for overheated components).
- Adjust the scale using the up arrow button (7) and down arrow button (12). This expands or reduces the temperature range, thereby expanding or reducing the thermal image.
- The measuring tool continues to measure minimum and maximum temperatures and displays these at the ends of the scale (h).
< Cold Detector>
- Only the colder temperatures in the measuring range are displayed as a thermal image in this measuring function.
- The area outside these colder temperatures is shown as a real image in greyscale to prevent colored objects from being wrongly associated with temperatures (e.g. a blue window frame when searching for faulty insulation).
- Adjust the scale using the up arrow button (7) and down arrow button (12). This expands or reduces the temperature range, thereby expanding or reducing the thermal image.
- The measuring tool continues to measure minimum and maximum temperatures and displays these at the ends of the scale (h).
< Manual>
- If greatly deviating temperatures are measured in the thermal image (e.g. a radiator as a hot object when searching for thermal bridges), the available colors are distributed among a large number of temperature values in the range between the maximum and the minimum temperature.
- This can result in a situation where subtle temperature differences can no longer be shown in detail.
- To obtain a detailed depiction of the temperature range to be examined, take the following steps:
- After switching to mode, you can set the maximum and the minimum temperature. Doing this enables you to set the temperature range that is relevant to you and in which you would like to detect subtle differences.
- The setting automatically readjusts the scale to the measured values in the infrared sensor’s field of view.

Main Menu
To access the main menu, first press the Func (8) button to call up the measuring functions. Now press the right-hand function button (9).

(d)

A selection of saved emissivities is available for some of the most common materials. Choose the relevant material in the menu item. The corresponding emissivity is shown in the line beneath. If you know the exact emissivity of the object you want to measure, you can also set it as a numerical value in the

menu item.
(c)

Setting this parameter can improve the accuracy of the measuring result, especially with low-emissivity (= high-reflection) materials. In some situations (especially in indoor areas) the reflected temperature corresponds to the ambient temperature. If there are objects with greatly deviating temperatures close to highly reflective objects, this value should be adjusted as the measurement may be affected.

(l)

The point is displayed in the center of the thermal image and shows you the measured temperature value at this point.

< Hotspot> (k): /

The hottest point (= measuring pixel) is indicated by red crosshairs in the thermal image. This facilitates the search for critical areas (e.g. a loose contact terminal in the control cabinet). To make the measurement as accurate as possible, focus the object to be measured in the center of the display (85 × 64 px). This way, the corresponding temperature value of this object will be shown as well.

< Coldspot> (m):/

The coldest point (= measuring pixel) is indicated by blue crosshairs in the thermal image. This facilitates the search for critical areas (e.g. a leak in a window). To make the measurement as accurate as possible, focus the object to be measured in the center of the display (85 × 64 px).

< Color Scale> (h): /
< Average Temp.> (b) : /

The average temperature (b) is displayed at the top left of the thermal image (average temperature of all measured values in the thermal image). This can help you to determine the reflected temperature.

(e): / (see “Data Transfer”, page 24)

Under this menu item, you can select the language used in the display.

<Time & Date> (a)

To change the time and date shown in the measuring tool, call up the <Time & Date> submenu. This submenu not only allows you to set the time and date but also to change their respective formats. To exit the and submenu, press either the righthand function button (9) to save the settings, or the left-hand function button (16) to discard the changes.

Under this menu item, you can select the time interval after which the measuring tool will automatically switch off if no buttons are pressed. You can also deactivate automatic switch-off by selecting the setting.

Under this menu item, you can set another Wi‑Fi® channel.

Under this menu item, you can adjust the quality of the recorded audio file via voice memo. Please note that more storage space is required for high audio quality.

Under this menu item, you can access information about the measuring tool. There you will find the serial number of the measuring tool and the installed software version.

Under this menu item, you can reset the measuring tool to factory settings and permanently delete all data. This may take several minutes. Press the righthand arrow button (10) for to enter this submenu. Then press either the right function button (9) to delete all files or the left function button (16) to cancel the process. You can also press the measuring button (22) to exit any menu and return to the home screen.

Documenting Measurements

Saving Measurements
The measuring tool begins to take measurements as soon as it is switched on and does so continuously until it is switched off. To save an image, point the camera at the required measuring object and press the “Save” button (13). The image is saved in the internal memory of the measuring tool. Alternatively, press the measuring button (22) (pause). The measurement is frozen and shown in the display. This enables you to carefully view the image and to make retrospective adjustments (e.g. to the color palette). If you do not wish to save the frozen image, restart measuring mode bypressing the measuring button (22). If you wish to save the image in the internal memory of the measuring tool, press the “Save” button (13).

Recording a Voice Note

You can record a voice note to keep a record of environmental conditions or additional information about the saved thermal image.
This information is saved in addition to the thermal image and visual image and can be transferred at a later stage.
It is recommended that you record a voice note in order to keep better documentation.

The voice note is recorded in the gallery. Proceed as follows:

To access the gallery, press the left-hand function button (16).
Press the Func (8) button. The recording will start. Record all the relevant information.
To end the recording, either press the Func (8) button again or press the right-hand function button (9).
To cancel the recording, press the left-hand function button (16). After you have made the recording, you will be able to listen to the voice note.
To listen back to the recording, press the Func (8) button again. The recording will be played back.
To pause playback, press the right-hand function button (9). To continue playing the paused recording, press the right-hand function button (9) again.
To stop playback, press the left-hand function button (16).
To record a new voice note, delete the current voice note and then start a new recording.

When recording, please note the following:

The microphone (15) is located behind the keyboard next to the microphone symbol. Speak in the direction of the microphone.
The recording can last a maximum of 30 seconds.

Calling Up Saved Images
Proceed as follows to call up saved thermal images:

Press the left-hand function button (16). The most recently saved photo now appears in the display.
Press the right-hand (10) or left-hand (14) arrow button to switch between the saved thermal images.
The visual image has been saved alongside the thermal image.
To call up the visual image, press the down arrow button (12).
You can also display the thermal image taken as a full-screen image by pressing on the up arrow button (7). In the fullscreen view, the title bar is hidden after 3 seconds so that you can see all the details of the thermal image.
You can use the up arrow button (7) and the down arrow button (12) to switch between views.

Deleting Saved Images and Voice Notes
Switch to the gallery view to delete individual or all thermal images:

Press the right-hand function button (9) under the waste paper basket symbol.
A submenu will open. Here you can select whether you want to delete only this image, only the corresponding voice note (if you have recorded one) or all images.
If you want to delete only this image or the voice note, confirm the process by pressing the Func (8) button.
If you want you delete all images, press the Func (8) button or the right-hand function button (9); you can also confirm the process by pressing the right-hand function button (9) or cancel the deletion by pressing the lefthand function button (16).
Data fragments of the images remain stored in the memory and could be reconstructed. You can select → in the main menu to permanently delete.

Data Transfer

Data Transfer via USB Port

Open the flap for the USB Type-C® port (5). Connect the USB Type-C® port (6) of the measuring tool to your computer via the USB Type-C® cable (25) provided.
Now press the on/off button (11) to switch on the measuring tool.
Open the file browser on your computer and select the GTC 600 C drive. The saved files can be copied from the internal memory of the measuring tool, moved to your computer or deleted.
As soon as you have finished the required operation, disconnect the drive from the computer following the standard procedure and then use the on/off button (11) to switch the measuring tool off again.
- Caution: Always disconnect the drive from your operating system first (eject drive), as failure to do so may damage the internal memory of the measuring tool.
Remove the USB Type-C® cable during the measuring operation and close the flap (5).

Always keep the flap of the USB port closed so that dust and splashes cannot enter the housing.

Note: Use a USB to connect the measuring tool to a computer only. The measuring tool may be damaged if connected to other devices.
Note: The USB Type-C® interface can only be used for data transfer. It is not suitable for charging non-rechargeable and rechargeable batteries.

Post-Editing the Thermal Images

You can post-edit the saved thermal images on your computer if it uses a Windows operating system. To do so, download the GTC Transfer software from the product page for the measuring tool at www.bosch-professional.com/thermal.

Data transmission via WLAN

The measuring tool is equipped with a Wi‑Fi® interface which enables the saved images taken by your measuring tool to be wirelessly transmitted to a mobile device. Special Bosch applications (apps) are available for this use.
They can be downloaded in the store corresponding to your device:
In addition to the wireless data transfer of your images, the
Bosch applications make it possible for you to use an extended range of functions and make it easier to post-edit and forward measured data (e.g. via e-mail).
Information about 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 measuring tool, call up the main menu, use the buttons to select , and activate or deactivate it.
The indicator (e) 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 measuring tool can be established after the Bosch application has been started (if the Wi‑Fi® modules are activated). To do this, follow the instructions in the application (app).

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 overview may help you.

Glossary of terms
To find out more, visit: www.bosch-professional.com/thermal.

Infrared thermal radiation
- Infrared thermal radiation is electromagnetic radiation emitted 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 accordingly 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 localized increase in heat loss due to a structural defect.
- Thermal bridges can lead to an increased risk of mold.
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)| Infrared range width × height (m)
---|---|---
0.3| 1| 0.25 × 0.19
0.55| 2| ~ 0.46 × 0.35
1| 3| ~ 0.83 × 0.63
2| 6| ~ 1.66 × 1.26
5| 16| ~ 4.14 × 3.15

Maintenance and Service

Maintenance and Cleaning

Only store and transport the measuring tool in a suitable container, such as the original packaging.
Keep the measuring tool clean at all times. A dirty infrared sensor (23) may impair the measuring accuracy.
When cleaning the measuring tool, ensure that no liquids enter the tool.
Do not attempt to remove dirt from the infrared sensor (23), camera (24), speaker (18), or microphone (15) using sharp objects. Do not wipe over the infrared sensor and camera (risk of scratching).
Please contact an authorized Bosch after-sales service center if you want to have your measuring tool recalibrated.
If repairs are required, send in the measuring tool in its original packaging.
There are no parts that can be serviced by the user on the measuring tool. Opening the housing shell can destroy the measuring tool.

Changing the Button Cell (see Figure B)

Unscrew the screw (4) on the button cell holder.
Pull the button cell holder (2) out of the measuring tool with an auxiliary tool (e.g. a flat-head screwdriver).
Change the button cell. Retighten the screw (4) after inserting the button cell holder.

After-Sales Service and Application Service

Our after-sales service responds to your questions concerning the maintenance and repair of your product as well as spare parts.
You can find explosion drawings and information on spare parts at: www.bosch-pt.com.
The Bosch product use advice team will be happy to help you with any questions about our products and their accessories.
In all correspondence and spare parts orders, please always include the 10‑digit article number given on the nameplate of the product.

Great Britain

Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk. you can order spare parts or arrange the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com.
You can find further service addresses at:www.bosch-pt.com/serviceaddresses.

Transport

The recommended lithium-ion batteries are subject to legislation on the transport of dangerous goods.
The user can transport the batteries by road without further requirements.
When shipping by third parties (e.g.: by air transport or forwarding agency), special requirements on packaging and labeling must be observed.
For preparation of the item being shipped, consulting an expert for hazardous material is required.
Dispatch battery packs only when the housing is undamaged.
Tape or mask off open contacts and pack up the battery in such a manner that it cannot move around in the packaging.
Please also observe the possibility of more detailed national regulations.

Disposal

Measuring tools, rechargeable/non-rechargeable batteries, accessories, and packaging should be sorted for environmentally friendly recycling.
Do not dispose of the measuring tools or battery packs/batteries with household waste.

Only for EU countries:

According to the Directive 2012/19/EU on waste electrical and electronic equipment and its transposition into national law, measuring tools that are no longer usable, and, according to the Directive 2006/66/EC, defective or drained batteries must be collected separately and disposed of in an environmentally correct manner.
If disposed of incorrectly, waste electrical and electronic equipment may have harmful effects on the environment and human health, due to the potential presence of hazardous substances.

Only for the United Kingdom:

According to Waste Electrical and Electronic Equipment Regulations 2013 (2013/3113) and the Waste Batteries and
Accumulators Regulations 2009 (2009/890), measuring tools that are no longer usable must be collected separately and disposed of in an environmentally friendly manner.

Battery packs/batteries: Li-ion: