HTI HT-A3 User manual

User manual
Outdoor Thermographic Telescope
User Manual Version 1.1. June 5，2021.
HT-A4HT-A3
Dongguan Xintai Instrument Co.,Ltd.
Add: Building F, No. 13-16, Hongye Industrial Zone, Tangxia
community, Tangxia Town, Dongguan City
Postcode:523710
Tel:[phone]
Fax:[phone]
Website:www.hti-meter.com
https://hti-instrument.com www.xintest.en.alibaba.com

Table of Content Overview
1
1
2
3
4
6
9
10
9
9
11
Overview
Considerations and Safety Maintenance
Performance Index
Product Structure
Operating Description
Battery Charging Instructions
Indicator Light
Application of Amplification
Application of Color Palette
After-sale Service of the Product
This product is Outdoor Thermographic Telescope device adopts
advance non-cooled focal plane infrared detector and quality optical
lenses as the core. With the characteristics of convenient and quick
operating system, small appearance design, expansion parts with
perfect function, long duration of use, it is sturdy and durable and
applicable to all types of environments and provides an ideal
temperature measurement tool featuring “clear imaging, precise
measurement, simple operation and easy to carry”. This is the best
selection for onsite detection, preventive maintenance and other
application sites.
The product may be used for outdoor animal observation, search
and rescue, law enforcement detection for policemen, night patrol,
outdoor activities and personal security, etc. The product is provided
with the photographing function. The photos may be browsed by
connecting with a computer through USB to make it convenient for
observation of many persons at the same time, which creates
possibility for application in more occasions.

Considerations and Safety Maintenance
2 3
Please read the user manual carefully in order to use the product
correctly:
Don’t use the product in explosive, flammable, damp or
corrosive environment.
The product contains precision electronic and sensitive optical
devices.Don’t impact and drop it to avoid damage.
Don’t dismantle and remodel the product without permission.
Please use damp cloth or weak soap to clean the enclosure of
the device.
Don’t use abradant, isopropanol or solvent to clean. The lens
and screen should be cleaned with use of professional optical
glasses.
When the product works, slight click will be given out every
several seconds. This is the normal phenomenon that the lens
captures the image.
Performance Index
Probe type
Resolution ratio
LCD resolution
Focus length
Eyepiece
Field angle
Digital zoom
Wavelength coverage
Frame rate of thermal
images
Color palette
Focusing mode
Image storage
Battery
USB
Working time
Product weight 440g
Model HT-A3 HT-A4
Product size
Work temperature
Storage temperature
384x288 infrared focal plane
720X540
Uncooled focal plane
Single eyepiece display (the dioptric
compensation is adjustable)
2X；4X
8μm-14μm
50Hz
Rainbow/Hot metal/white heat/black heat/
Yellow saturation/Bird watching mode.
Adjustable
BMP
Built-in rechargeable batteries
Micro USB
≥15 hours
186x69x68 mm
0℃- 45℃
-20℃- 60℃
19mm；25mm；35mm
19.5°x14.7°； 14.9°x11.2°； 10.7°x 8°
541.2g
187.3x68x68.2mm

4 5
Product Structure
Infrared thermal
image sensor
Adjustable
focus lens
Eyepiece patch
Dioptric
adjustment knob
Capture
Indicator light
switch
Zoom in /
zoom out
Mode switch
Laser light
(Open the safety cover before use)
CVBS video output interface, USB interface
CVBS video output
interface
USB interface
（HT-A3） （HT-A4）
Remark: HT-A4 product does not have laser light
Infrared thermal
image sensor
Adjustable
focus lens
Eyepiece
patch
Dioptric
adjustment knob
Capture
Indicator
light
Switch Zoom in
Zoom outMode switch

7
6
Operating Description
Charging: the product is provided with built-in battery. When the
battery power is not sufficient, please charge it through Micro
USB interface in time.
Power on/off: hold down “ ” key to power on /off.
Image capture: Press “ ” key to capture the image. The
screen will show “ ” prompt, indicating that image capture
is successful.
（HT-A3） Image review:After powering on, short press the " "
key to enter the image viewing mode (the image shows the last
imagetaken), press the " " key to view the previous image,
press the " " key to view the next image, and press the
" " key to exit Image viewing mode.
Delete image: After entering the image viewing mode, press
and hold the “ ” key to delete the currently viewed image.
Image Export: Capture and save images can be viewed and
exported via a Micro USB connection to a computer.
Mode switching: Press the " " button to switch between
the six imaging modes of rainbow, hot metal, black heat,
yellow saturation,bird watching mode and white heat.
CVBS video output: Press and hold the “ ” key to switch to
CVBS video output. Press and hold again to return to the local
display.
（HT-A3） Zoom in / out: Under the power-on state, press the
“ ” key, and each time you press it, the target of “2X, 4X”
will be gradually enlarged and displayed. Press again to return
to the normal state.
+
-
+
-
（HT-A4） Image review:After powering on, short press the " "
key to enter the image viewing mode (the image shows the last
image taken), press the " " key to view the previous image,
press the " " key to view the next image, and press the
" " key to exit Image viewing mode.
+
-
（HT-A4） Zoom in/out: In the power-on state, press the " "
key, and the target of "2X, 4X" will appear gradually enlarged
and displayed every time you press it. When the target is
maximized, press " " to zoom out 2X, 1X (the zoom out
function can only be used after the image is enlarged).
+
-

89
Indicator Light
（HT-A3） Brightness adjustment of the display screen: Under
the power-on state, press and hold the “ ” key to adjust the
brightness. Each long press adjusts the brightness by 1 level.
Status
Power on
Power off
Not being charged
Blue
None
In charging
Red blue (purple)
Red
Fully charged
Blue
None
Normal
The magnification function may be utilized when remote objective
is photographed so as to observe the objective clearly.
The effect picture is as follows:
Use USB data line to charge:
This product has a built-in rechargeable battery.
When the battery is low, please charge it in time via the Micro USB
port.
After fully charged, unplug the USB cable.
Note: When the battery is completely empty, there will be an
abnormality. It is recommended to use the battery when it is
sufficient.
Application of Amplification
Battery Charging Instructions
+
-
2X 4X
（HT-A4） The brightness adjustment of the display screen: In
the power-on state, long press the " " key to increase the
brightness, long press the " " key to decrease the
brightness, and adjust the brightness level 1 for each long
press.
（HT-A3） Laser light on / off: In the power-on state, press and
hold the “ ” key to turn on the laser light, and long press it
again to turn it off.
Diopter adjustment: Rotate the diopter adjustment button left
and right to adjust the diopter for yourself.
Focusable lens: Rotate the focus lens button left and right to
focus. Rotate clockwise for near focus and counterclockwise
for far focus.
+
-

After-sale Service of the Product
Respected customers:
Thank you for purchasing the product of our company. The product
carries a warranty period from the date of sale.
During the warranty period of the product, if installation and use is
made according to the user manual at normal environment and
conditions, users may enjoy free repair service by warranty voucher
for faulty product caused by raw materials and manufacturing
process. The warranty voucher should be kept properly by the
users and will not be reissued if lost.
In order to avoid problems during the use process, our company
suggests that you familiarize with the user manual of the product
first before the product is used.
The following conditions are not within the warranty scope:
1. Unable to show the original of effective warranty voucher.
2. The product installation does not comply with product require-
ments and relevant specification, which causes damage;
3. The damage is caused due to that users use and store it
improperly or dismantle and repair it without permission and other
reasons;
4. Damage caused by natural disasters (earthquake, flood and
lightning stroke) and external disasters;
5. Exceed the warranty period.
11
The image effect photographed with six types of color palette.
10
Rainbow Hot metal White heat Black heat
Application of Color Palette
The color palette menu may change the pseudo color of infrared
thermal image and provide six types of color palettes: rainbow, Hot
metal, white heat,black heat, Yellow saturation,Bird watching
mode.
The selection of proper color palette can show the details of target
object in a better manner. The color palette of rainbow and Hot
metal focuses on display of color and is very suitable for the
condition of high heat contrast and used to improve color contrast
between high temperature and low temperature. But the white
heat color palettes provide even linear color.
Yellow saturation Bird watching mode

12 13
1. The product enjoys warranty service within one year from the purchase
date if it is used normally and not dismantled and is confirmed by
warranty personnel for product quality problem. Repair will be provided at
any condition.
2. The warranty voucher should be filled at the time of purchase. It should
be carried for product maintenance.
Customer’s
name
Warranty record:
Considerations:
1. If the product malfunction, repair or replacement with new or
good product is made according to the condition after the product
is inspected.
2. For product exceeding the warranty period, determine whether
to repair or replace the part after inspection for the product is
performed. Relevant expense will be charged for all types of
repair and replacement of parts and components according to
actual condition.
Purchase
date Product type Distributor