HT THT70n User manual

Copyright HT ITALIA 2020 Release EN 1.00 - 19/11/2020
THT70n
User manual

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TABLE OF CONTENTS
1PRECAUTIONS AND SAFETY MEASURES ........................................................................... 1
1.1During use ........................................................................................................................................ 2
1.2After use ........................................................................................................................................... 2
2GENERAL DESCRIPTION ....................................................................................................... 2
3PREPARATION FOR USE ....................................................................................................... 3
3.1Initial checks..................................................................................................................................... 3
3.2Instrument power supply .................................................................................................................. 4
3.3Storage............................................................................................................................................. 4
4NOMENCLATURE .................................................................................................................... 5
4.1Description of the instrument ........................................................................................................... 5
4.2Description of function keys ............................................................................................................. 8
4.2.1  Switching on the instrument............................................................................................................... 8 
4.2.2  Switching off the instrument............................................................................................................... 8 
4.2.3  Key ........................................................................................................................................ 9 
4.2.4  Key .............................................................................................................................................. 9 
4.2.5  T key (Trigger) ................................................................................................................................... 9 
4.2.6  Key Menu/OK .................................................................................................................................... 9 
4.2.7  Key .......................................................................................................................................... 9 
5USING THE INSTRUMENT .................................................................................................... 10
5.1Description of the main interface.................................................................................................... 10
5.2Image focusing ............................................................................................................................... 11
5.3Main menu description ................................................................................................................... 12
5.3.1  Settings Menu.................................................................................................................................. 13 
5.3.1.1  Menu “Device Settings”............................................................................................................................... 13 
5.3.1.2  Menu “Measure settings” ............................................................................................................................ 19 
5.3.1.3  Menu “Reset” .............................................................................................................................................. 23 
5.3.2  Measurement Menu......................................................................................................................... 25 
5.3.3  Menu Image, Distance measurement and Zoom............................................................................. 28 
5.3.4  Menu Palette and isotherm lines' functions ..................................................................................... 31 
5.3.5  Menu Parameters ............................................................................................................................ 34 
5.3.6  Alarm menu ..................................................................................................................................... 37 
5.4Adjusting the image temperature ................................................................................................... 38
5.5Saving IR images and videos......................................................................................................... 40
5.5.1  Image saving ................................................................................................................................... 40 
5.5.2  Recording IR videos ........................................................................................................................ 41 
5.5.3  Gallery menu ................................................................................................................................... 42 
5.6HDMI video output.......................................................................................................................... 42
5.7Characteristics of the lens.............................................................................................................. 43
5.8Use of the Screening mode............................................................................................................ 44
6USING THE THTLINK SOFTWARE ....................................................................................... 45
6.1Minimum system requirements ...................................................................................................... 45
6.2Installing the THTLink software...................................................................................................... 45
6.3Main characteristics of the THTLink software ................................................................................ 45
7MAINTENANCE ...................................................................................................................... 46
7.1General information........................................................................................................................ 46
7.2Recharging the internal battery ...................................................................................................... 46
7.3Cleaning the instrument ................................................................................................................. 47
7.4End of life ....................................................................................................................................... 47
7.5Accessories .................................................................................................................................... 47
7.5.1  Accessories provided....................................................................................................................... 47 
8TECHNICAL SPECIFICATIONS............................................................................................. 48
8.1Environment ................................................................................................................................... 49
8.1.1  Environmental conditions for use..................................................................................................... 49 
9ASSISTANCE ......................................................................................................................... 50
9.1Warranty conditions........................................................................................................................ 50
9.2Assistance ...................................................................................................................................... 50
1 PRECAUTIONS AND SAFETY MEASURES
The instrument has been designed in compliance with the directives relevant to electronic
measuring instruments. For your safety and in order to prevent damaging the instrument,

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please carefully follow the procedures described in this manual and read all notes
preceded by symbol with the utmost attention. Before and after carrying out the
measurements, carefully observe the following instructions:
CAUTION
Do not carry out any measurements in case gas, explosive materials or
flammables are present, or in humid or dusty environments
Do not carry out any measurement in case you find anomalies in the
instrument such as deformation, breaks, substance leaks, absence of
display on the screen, etc
Keep the instrument steady during any measuring operation
Do not use the instrument in environments with temperatures
exceeding the operating and storage limits specified in § 8.1.1 in order
not to damage it
Only the accessories provided together with the instrument will guarantee
safety standards. They must be used only if in good conditions and
replaced with identical models, when necessary
Check that the battery is correctly inserted
Check that the LCD display gives indications consistent with the function
selected
Do not direct the instrument at very high intensity radiation sources
(e.g. the sun) in order to prevent damaging the IR sensor
Prevent hits or strong vibrations in order to keep the instrument from
damage
When bringing the instrument from a cold to a hot environment, leave it on
long enough for condensation water to evaporate
In this manual, and on the instrument, the following symbols are used:
Warning: observe the instructions given in this manual; improper use could
damage the instrument or its components.
This symbol on the display means that the instrument is able to emit a laser
pointer in Class 2. Do not direct the radiation towards the eyes in order to
prevent injury.
Compliant with European Standards
1.1 DURING USE
CAUTION
Failure to comply with the caution notes and/or instructions may damage
the instrument or be a source of danger for the operator.
Use the instrument only in the temperature ranges indicated in § 8.1.1.
1.2 AFTER USE
When measurement is complete, switch off the instrument. If you expect not to use the
instrument for a long period, remove the battery.
2 GENERAL DESCRIPTION
The instrument is a professional digital thermal camera capable of carrying out infrared
temperature measurements of objects and providing high-resolution images in an

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extremely flexible way. It is also very easy to use and needs little maintenance.
The main characteristics of the instrument are:
Infrared temperature measurement ranging from -20°C to 650°C
Built-in photo camera for a visible image
PiP Fusion and Auto Fusion (AUF) function
Cursor in a fixed central position
Cursors for automatic detection of “hot” and “cold” spots of the image
TFT colour display with capacitive touch-screen
Alarm conditions on temperature measurement
8 colour palettes available
Electronic zoom x1-x32
Advanced analyses (Spots, Lines, Areas, Isotherm lines)
Automatic detection of hot/cold spots of the image
“Screening” function for a quick measurement of surface temperature
Storage of JPG images on external micro SD card and in the internal memory
IR sensor resolution: 384x288pxl
USB port for PC connection and image and video transfer
Voice and text annotation on saved images
IR MPEG4 video recording on micro SD card and in the internal memory
HDMI video output
Built-in laser pointer and illuminator
Measurement of the distance from target with laser pointer
Rechargeable Li-ION battery
Analysis and creation of reports with the provided dedicated software
WiFi interface to mobile devices through the APP HTProCamera
The applications of the digital thermal camera are:
Predictive and preventive maintenance of electrical and mechanical appliances
Monitoring of the temperature of working processes
Maintenance and troubleshooting on forced ventilation ducts
Domestic/industrial use in troubleshooting room insulation problems
Applications in the construction field
Safety problems
3 PREPARATION FOR USE
3.1 INITIAL CHECKS
Before shipping, the instrument has been checked from an electric as well as mechanical
point of view. All possible precautions have been taken so that it is delivered undamaged.
However, we recommend generally checking the instrument in order to detect possible
damage suffered during transport. In case anomalies are found, immediately contact the

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forwarding agent. We also recommend checking that the packaging contains all
components indicated in § 7.5. In case of discrepancy, please contact the Dealer. In case
the instrument should be returned, please follow the instructions given in § 9.
3.2 INSTRUMENT POWER SUPPLY
The instrument is supplied by a 1x3.7V, 5200mAh rechargeable Li-ION battery and AC
mains power supply, which also provides for the recharge of the mentioned battery. Both
of these systems are provided together with the instrument. For battery recharge, please
refer to § 7.2.
3.3 STORAGE
In order to guarantee precise measurement, after a long storage time under extreme
environmental conditions, wait for the instrument to come back to normal operating
conditions (see § 8.1.1).

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4 NOMENCLATURE
4.1 DESCRIPTION OF THE INSTRUMENT
Fig. 1: Description of the instrument's backside
CAPTION:
1 Audio/Microphone, USB, micro SD and HDMI
2 LCD touch-screen display
3 Lens associated with the IR sensor
4 Function key (Image/video gallery)
5 Function key (Laser/Distance)
6 Function key Menu/OK
7 Function key (ON/OFF and Measuring Mode)
8 Arrow keys ,,,
9 Trigger key (T)

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Fig. 2: Description of the instruments front side
CAPTION:
1 Built-in white LED illuminator
2 Laser pointer
3 Laser pointer for distance measurement
4 Photo camera
5 Lens associated with the IR sensor
6 Slot for non-slip strap insertion
7 Threaded hole (¼”) for tripod insertion
8 Trigger key (T)
9 Rechargeable battery

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Fig. 3: Description of the upper part of the instrument
CAPTION
1 Slot for micro SD card insertion
2 Micro USB port
3 Headphone/microphone input
4 HDMI video output

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4.2 DESCRIPTION OF FUNCTION KEYS
The instrument has 8 function keys described further in this text and a trigger key “T” with
multiple functions.
4.2.1 Switching on the instrument
1. Press and hold key for 2s to switch on the instrument. After the initial splash
screen is displayed (see Fig. 4 – left side), the instrument needs for a certain heating
time (approx. 30s) in order to provide accurate temperature measurements and quality
images.
2. The instrument initially shows the visible image for a few seconds and the message “IR
calibration…” while it correctly calibrates the internal sensor (see Fig. 4 – middle).
3. After a few seconds, the IR image is shown on the display and the instrument is ready
for measurement (see Fig. 4 – right side).
Fig. 4: Sequence upon switching on the instrument
CAUTION
The sound that accompanies the message “IR calibration…” is a
necessary condition for the instrument's internal calibration.
Pressing the key allows switching on/off the instrument. The
instrument also has an Auto-Power-Off function with selectable time.
4.2.2 Switching off the instrument
1. Press and hold key for at least 4s to switch off the instrument. The following
screen appears on the display.
Fig. 5: Switching off the instrument
2. Touch the virtual button “OK” to switch off the instrument.
3. Touch the virtual button “Cancel” to cancel the operation and go back to normal
display.
4. By pressing and holding the key for at least 7s, the instrument is directly switched
off.

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4.2.3 Key
Press and hold key for 2s to switch on/off the instrument's laser pointer. The symbol
“ ” is found in the top part of the display. The same key is also used for measuring the
distance between the instrument and the framed target (see § 5.3.3).
4.2.4 Key
Press key to enter the gallery of images/videos saved in the internal memory or on the
inserted micro SD card (see § 5.5.3).
4.2.5 T key (Trigger)
Pressing the Tkey found on the front part of the instrument allows freezing the IR image
on the display and automatically opens the section for saving the image (see § 5.5.1).
Press the Tkey again to unfreeze the image on the display.
4.2.6 Key Menu/OK
Pressing the key Menu/OK allows displaying/hiding the instrument's main menu (see §
5.3). The operation is always possible also by touching the display.
4.2.7 Key
Long pressing key allows switching on/off the instrument (see § 4.2.1 and § 4.2.2).
With the instrument switched on, by pressing key several times, it is possible to
select the image temperature adjusting modes (see § 5.4).