TESTO 871 User manual

testo 871 - Thermal Imager
Instruction manual
Short
instructions
Instruction
manual
Thermography
pocket guide
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ideos

Contents
Contents
1Safety and waste disposal ................................................................... 5
1.1 Zu diesem Dokument.............................................................................5
1.2 Safety .....................................................................................................5
1.3 Waste disposal.......................................................................................7
2Technical data ..................................................................................... 8
2.1 Bluetooth module...................................................................................8
2.2 General technical data ...........................................................................8
3Description of the instrument ............................................................. 12
3.1 Use.......................................................................................................12
3.2 Instrument / operating elements overview ...........................................12
3.3 Displays overview.................................................................................13
3.4 Power supply .......................................................................................14
4Operation........................................................................................... 15
4.1 Initial operation.....................................................................................15
4.2 Switching instrument on and off ..........................................................15
4.3 Getting to know the menu....................................................................16
4.4 Quick select button ..............................................................................17
5WLAN connection - using the App ..................................................... 19
5.1 Activating/disabling the connection .....................................................19
5.2 Using the App ......................................................................................20
5.2.1 Establishing a connection......................................................20
5.2.2 Select display ........................................................................20
6Bluetooth®connection ....................................................................... 22
7Performing the measurement ............................................................. 24
7.1 Saving an image...................................................................................25
7.2 Setting measuring functions ................................................................26
7.3 Image gallery........................................................................................27
7.4 Setting the scale ..................................................................................30
7.5 Setting emissivity and reflected temperature.......................................32
7.5.1 Selecting the emissivity .........................................................33
7.5.2 Customizing the emissivity ....................................................34
7.5.3 Setting the RTC .....................................................................34
7.5.4 Setting ε-Assist......................................................................34
7.6 Selecting the colour palette .................................................................35

Contents
7.7 Image type........................................................................................... 35
7.8 Activating humidity, solar or electrical mode....................................... 35
7.9 Activating the differential temperature................................................. 36
7.10 Configuration ....................................................................................... 37
7.10.1 Settings................................................................................. 37
7.10.2 SuperResolution ................................................................... 38
7.10.3 Save JPEG function .............................................................. 38
7.10.4 Connectivity .......................................................................... 39
7.10.5 Ambient conditions ............................................................... 39
7.10.6 Info........................................................................................ 40
7.10.7 Fullscreen mode ................................................................... 40
7.10.8 Reset options........................................................................ 40
8Maintenance ...................................................................................... 42
8.1 Charging the rechargeable battery...................................................... 42
8.2 Changing the rechargeable battery ..................................................... 42
8.3 Cleaning the instrument....................................................................... 44
9Tips and assistance ........................................................................... 45
9.1 Questions and answers ....................................................................... 45
9.2 Accessories and spare parts ............................................................... 46
10 Authorizations and certification.......................................................... 47

1 Safety and waste disposal
5
1Safety and waste disposal
1.1 Zu diesem Dokument
•The instruction manual is an integral part of the instrument.
•Keep this document throughout the entire operating life of the instrument.
•Always use the complete original instruction manual.
•Please read this instruction manual through carefully and familiarise yourself
with the product before putting it to use.
•Pass this instruction manual on to any additional or subsequent users of the
product.
•Pay particular attention to the safety instructions and warning advice in
order to prevent injury and damage to the product.
1.2 Safety
General safety instructions
•Only operate this instrument in the proper manner, for its intended purpose
and within the parameters specified in the technical data.
•Do not apply any force to open the instrument.
•Do not operate the instrument if there are signs of damage on the housing,
mains unit or connected cables.
•Always comply with the locally valid safety regulations when carrying out
measurements. Dangers may also arise from objects to be measured or the
measuring environment.
•Do not store the product together with solvents.
•Do not use any desiccants.
•Only perform maintenance and repair work on this instrument that is
described in this documentation. Follow the prescribed steps exactly.
•Use only original spare parts from Testo.
•During operation, this instrument must not be pointed at the sun or other
intensive sources of radiation (e.g. objects with temperatures exceeding
500 °C). This can lead to serious damage to the detector. The manufacturer
does not provide any warranty for any such damage to the microbolometer
detector.

1Safety and waste disposal
6
Batteries
•Improper use of batteries may cause the batteries to be destroyed, or lead
to injury due to current surges, fire or escaping chemicals.
•Only use the batteries supplied in accordance with the instructions in the
instruction manual.
•Do not short-circuit the batteries.
•Do not take the batteries apart and do not modify them.
•Do not expose the batteries to heavy impacts, water, fire or temperatures in
excess of 60 °C.
•Do not store the batteries in the proximity of metal objects.
•In the event of contact with battery acid: rinse affected areas thoroughly
with water, and if necessary consult a doctor.
•Do not use any leaky or damaged batteries.
•Only charge the rechargeable battery in the instrument or in the
recommended charging station.
•Immediately stop the charging process if this is not completed in the given
time.
•Take the rechargeable battery out of the instrument or the charging station
immediately if it is not functioning properly or if it shows signs of
overheating. Rechargeable battery may be hot!
•When not in use for a long period of time, take the rechargeable battery out
of the instrument to prevent exhaustive discharge.
Warnings
Always pay attention to any information denoted by the following warnings.
Implement the precautionary measures specified!
Display Explanation
WARNING
Indicates possible serious injury.
CAUTION
Indicates possible minor injury.
ATTENTION
Indicates possible damage to equipment.

1 Safety and waste disposal
7
1.3 Waste disposal
•Dispose of faulty rechargeable batteries and spent batteries in accordance
with the valid legal specifications.
•At the end of its useful life, dispose of the instrument via separate collection
for electrical and electronic devices. Please observe local regulations
regarding waste disposal, or alternatively return the product to Testo for
disposal.

2Technical data
8
2Technical data
2.1 Bluetooth module
The use of the wireless module is subject to the regulations and
stipulations of the respective country of use, and the module may only
be used in each case in countries for which a country certification has
been granted.
The user and every owner undertake to adhere to these regulations and
prerequisites for use, and acknowledge that the re-sale, export, import,
etc. in particular in, to or from countries without wireless permits, is
their responsibility.
2.2 General technical data
Infrared image output
Feature Values
Infrared resolution 240 x 180
Thermal sensitivity (NETD) 90 mK
Field of view (FOV) / min.
focusing distance
35° x 26° / <0.5 m
Geometric resolution (IFOV) 2.6 mrad
SuperResolution (optional
function)
480 x 360 pixels / 1.6 mrad
IR image refresh rate 9 Hz
Focus Fixed focus
Spectral range 7.5 - 14 μm
Visual image output
Feature Values
Image size / min. focusing
distance
Min. 3.1 MP / 0.5 m

2 Technical data
9
Image presentation
Feature Values
Display 8.9 cm (3.5") TFT, QVGA (320 x 240 pixels)
Display options •Infrared image
•Real image
Interface •WLAN
•Bluetooth
•USB 2.0 micro B
Colour palettes 4 options:
•Iron
•Rainbow HC
•Cold-hot
•Grey
Measurement
Feature Values
Measuring range -30 to 650 °C
Accuracy •-30 to -21 °C ±3 °C
•-20 to +650 °C ±2 °C / ±2%
ɛ-Assist Automatic emission value and RTC detection
Emissivity/reflected
temperature adjustment
0.01 to 1/manual
Measurement functions •Single point measurement
•Coldspot
•Hotspot
•Differential temperature
•ScaleAssist
•IFOV warner
•Surface moisture distribution
•Humidity measurement with testo 605i
humidity probe
•Solar mode (manual)
•Electrical mode (manual)
•Electrical measurement with testo 770
wireless clamp meter

2Technical data
10
Imager equipment
Feature Values
Digital camera Yes
Fullscreen mode Yes
File format .jpg
Video streaming •USB
•WiFi via the App
Image storage
Feature Values
File format •.jpg
•.bmt
•Option of exporting in
.bmt
.jpg
.png
.csv
.xls
Memory capacity Internal mass storage 2.8 GB,
> 2000 images (without SuperResolution)
Power supply
Feature Values
Battery type Li-Ion rechargeable battery 2500 mAh / 3.7 V
Operating time 4.0 h @ 20 °C
Charging option In instrument/in charging station (optional)
Charging time approx. 5 h via mains unit
approx. 8 h via a PC's USB interface
Ambient conditions
Feature Values
Operating temperature -15 to 50 °C
Storage temperature -30 to 60 °C
Humidity 20 - 80 %RH, not condensing

2 Technical data
11
Physical features
Feature Values
Weight 510 g (including battery)
Dimensions 219 x 96 x 95 mm
Housing PC/ABS
Protection class (IEC 60529) IP 54
Vibration (IEC 60068-2-6) 2 G
Standards, tests, warranty
Feature Values
EMC 2014/30/EU
RED 2014/53/EU
Warranty 2 years, warranty conditions: see
www.testo.com/warranty
You can find the EU declaration of conformity on the Testo homepage
www.testo.com under the product-specific downloads.

3Description of the instrument
12
3Description of the instrument
3.1 Use
The testo 871 is a handy, robust thermal imager. You can use it to undertake
the non-contact measurement and display of surface temperature distribution.
Areas of application
•Building inspection: Energy efficiency rating of buildings (heating,
ventilation, air-conditioning trade, building engineers, engineering firms,
experts)
•Production monitoring / quality assurance: monitoring of production
processes
•Preventive maintenance / servicing: Electrical and mechanical inspection of
systems and machines
3.2 Instrument / operating elements
overview
Element Function
1 Display Displays infrared and real images, menus and
functions
2 Interface terminal Contains micro USB interface for power supply
and connection to the computer

3 Description of the instrument
13
Element Function
3 - key
- Esc key
- Switch camera on and off
- Cancel action
4 - OK key
- Joystick
- Open menu, select function, confirm setting
- Navigate within the menu, highlight function,
select colour palette
5 Quick select button Opens the function assigned to the quick select
button; the icon for the selected function is
displayed bottom right
6 Infrared camera lens;
protective cap
Takes infrared images; protects the lens
7 Digital camera
(testo 871-2 only)
Takes real images
8 Trigger Saves the displayed image
9 Battery compartment Contains the rechargeable battery
3.3 Displays overview
Element Function
1 Status bar In the status bar, values are displayed depending
on the setting.

3Description of the instrument
14
Element Function
2 Battery capacity / charge status:
: Battery operation, capacity 75-100%
: Battery operation, capacity 50-75%
: Battery operation, capacity 25-50%
: Battery operation, capacity 10-25%
: Battery operation, capacity 0-10%
: Mains operation, battery is charging
3 Image display IR image or real image display
4 °C or °F Unit set for reading and scale displays
5 Scale - Temperature unit
- Grey characters: measuring range
- White characters: temperature margin of the
image displayed, showing the
minimum/maximum reading (with automatic
scale adjustment) or the selected
minimum/maximum display value (with
manual scale adjustment)
6 A, M or S A - automatic scale adjustment
M - manual scale adjustment
S - ScaleAssist is enabled
7 E ... Emissivity set
3.4 Power supply
The power is supplied to the instrument via a replaceable rechargeable battery
or the mains unit provided (battery must be inserted).
With an attached mains unit, power is supplied automatically via the mains unit
and the rechargeable battery is charged (only at ambient temperatures from 0
to 40°C).
If the instrument is switched off when connected to a PC via the USB interface,
the rechargeable battery is charged via the USB interface.
It is also possible to charge the battery using a charging station (accessory).
The instrument is equipped with a buffer battery to maintain the system data
during an interruption in the power supply (e.g. when the battery is changed).

4 Operation
15
4Operation
4.1 Initial operation
Please read the testo 871 1st steps commissioning instructions supplied
(0970 8652).
4.2 Switching instrument on and off
Switching on the camera
1 - Remove protective cap from the
lens.
2 - Press .

The camera starts.

The start screen appears on the
display.
The camera carries out automatic zeroing approx. every 60 seconds in
order to guarantee measuring accuracy. A "click" is heard when this
happens. The image freezes briefly when this occurs. Zeroing is carried
out more frequently during the camera warm-up period (takes
approx. 90 seconds).
During the warm-up period no measuring accuracy is guaranteed. The
image can already be used for indication purposes and saved.

4Operation
16
Switching off the camera
1 - Press and hold down until the
progress bar is complete.

The display goes off.

The camera is switched off.
4.3 Getting to know the menu
1 - Press OK to open the menu.
2 - Move the joystick down/up to
highlight a function (orange border).
3 - Press OK to select the function.
3.1 - Move the joystick to the right to open the submenu (marked with >).
- Return to the main menu:
oMove the joystick to the left or
oMove the joystick to the menu bar and press OK.

4 Operation
17
4.4 Quick select button
The quick select button is another navigation option that you can use to call up
certain functions simply at the touch of a button.
Quick select menu items
Menu item Function
Image gallery Opens an overview of saved images.
Scale: This function is only
available if the Image type is
set to infrared)
Set scale limits.
Emissivity: This function is
only available if the Image type
is set to infrared)
Set emissivity (E) and reflected temperature
(RTC).
Palette Toggles the palette selection.
Adjustment: This function is
only available if the Image type
is set to infrared)
Carries out manual zeroing.
Image type Alternately switches the image display
between infrared and real image.
Changing assignment
1 - Move the joystick to the right.

The Configure key selection menu
appears.

The activated function is marked with
a dot ( ).

4Operation
18
2 - Move the joystick up/down until the
orange box appears around the
required menu item.
- Press OK

The quick select button is assigned
to the selected menu item.

The icon for the selected function is
displayed bottom right.
Using the quick select button
1 - Press .

The function assigned to the quick
select button is carried out.

5 WLAN connection - using the App
19
5WLAN connection - using the App
5.1 Activating/disabling the connection
To connect via WLAN, you need a tablet or smartphone with the Testo
Thermography App already installed on it.
You can get the App from the App Store for iOS devices or from the
Play Store for Android devices.
Compatibility:
Requires iOS 8.3 or later/Android 4.3 or later
1 - Open Menu.
2 - Move the joystick down and select Configuration.
- Press OK or move the joystick to the right.
3 - Move the joystick down and select Connectivity.
- Press OK or move the joystick to the right.
4 - Select WLAN and press OK to activate (a tick appears when WLAN
is activated).
Explanation of WLAN icons
Icon Function
App is connected
No connection to the App

5WLAN connection - using the App
20
5.2 Using the App
5.2.1 Establishing a connection

- WLAN is activated in the thermal imager.
1 - Smartphone/tablet -> Settings -> WLAN settings -> camera is
shown with serial number and can be selected.
2 - Press Connect.

The WLAN connection to the thermal imager is established.
5.2.2 Select display
Second display

- The thermal imager is connected via WLAN.
1 - Selection -> 2nd display

The display on the thermal imager is shown on your mobile end
device.
Remote

- The thermal imager is connected via WLAN.
1 - Selection -> Remote

The display on the thermal imager is shown on your mobile end
device. The thermal imager can be controlled and settings made via
the mobile terminal device.