TESTO 876, testo 873 Instruction Manual
testo 876 · Thermal imager
Instruction manual
2
1 Contents
3
1 Contents
1 Contents ...................................................................................................3
2 Safety and the environment....................................................................4
2.1. About this document........................................................................4
2.2. Ensure safety...................................................................................5
2.3. Protecting the environment..............................................................6
3 Specifications ..........................................................................................7
3.1. Use ..................................................................................................7
3.2. Technical data .................................................................................7
4 Product description...............................................................................11
4.1. Overview........................................................................................11
4.2. Basic properties.............................................................................13
5 First steps ..............................................................................................14
5.1. Commissioning ..............................................................................14
5.2. Getting to know the product...........................................................16
6 Using the product..................................................................................21
6.1. Menu functions ..............................................................................21
6.1.1. Measuring functions.......................................................................................21
6.1.2. Image gallery ................................................................................................. 24
6.1.3. Scale..............................................................................................................25
6.1.4. Display........................................................................................................... 26
6.1.5. Emissivity.......................................................................................................26
6.1.6. Palette ...........................................................................................................29
6.1.7. Configuration ................................................................................................. 29
6.2. Measuring......................................................................................33
7 Maintaining the product........................................................................36
8 Tips and assistance...............................................................................38
8.1. Questions and answers .................................................................38
8.2. Accessories and spare parts .........................................................39
2 Safety and the environment
4
2 Safety and the environment
2.1. About this document
Use
> Please read this documentation through carefully and
familiarize yourself with the product before putting it to use. Pay
particular attention to the safety instructions and warning advice
in order to prevent injuries and damage to the products.
> Keep this document to hand so that you can refer to it when
necessary.
> Hand this documentation on to any subsequent users of the
product.
Warnings
Always pay attention to information that is marked by the following
warnings with warning pictograms. Implement the specified
precautionary measures.
Representation Explanation
NOTICE
indicates circumstances that may lead to
damage to the products
Symbols and writing standards
Represen-
tation
Explanation
Note: Basic or further information.
1. ...
2. ...
Action: more steps, the sequence must be followed.
> ... Action: a step or an optional step.
- ... Result of an action.
Menu Elements of the instrument, the instrument displays
or the program interface.
[OK] Control keys of the instrument or buttons of the
program interface.
... | ... Functions/paths within a menu.
“...” Example entries
2 Safety and the environment
5
2.2. Ensure safety
> Only operate the product properly, for its intended purpose and
within the parameters specified in the technical data. Do not
use any force.
> Do not operate the instrument if there are signs of damage at
the housing, mains unit or feed lines.
The thermal imager must not be directed at the sun or other
sources of intense radiation (e.g. objects with temperatures greater
than 500 °C) during operation. This may lead to serious damage to
the detector. The manufacturer accepts no warranty for this type of
damage to the detector.
> The objects to be measured or the measurement environment
may also pose risks: Note the safety regulations valid in your
area when performing the measurements.
> Do not store the product together with solvents. Do not use any
desiccants.
> Carry out only the maintenance and repair work on this
instrument that is described in the documentation. Follow the
prescribed steps exactly. Use only original spare parts from
Testo.
> Improper use of rechargeable batteries can lead to destruction
or injuries by means of current surges, fire or escaping
chemicals. The following instructions must be observed to avoid
such hazards:
• Only use in accordance with the directions in the instruction
manual.
• Do not short, take apart or modify.
• Do not expose to heavy impacts, water, fire or temperatures
above 60 °C.
• Do not store in the proximity of metal objects.
• Do not use leaky or damaged rechargeable batteries. In the
event of contact with battery acid: Thoroughly wash affected
area with water and consult a doctor, if necessary.
• Only charge in the instrument or the recommended charging
station.
2 Safety and the environment
6
• Immediately stop the charging process if this is not
completed in the given time.
• In the event of improper function or signs of overheating,
immediately remove the rechargeable battery from the
measuring instrument/charging station. Caution:
Rechargeable battery may be hot!
• During longer breaks, remove the battery from the
instrument to avoid exhaustive discharge.
2.3. Protecting the environment
> Dispose of faulty rechargeable batteries/spent batteries in
accordance with the valid legal specifications.
> At the end of its useful life, send the product to the separate
collection for electric and electronic devices (observe local
regulations) or return the product to Testo for disposal.
3 Specifications
7
3 Specifications
3.1. Use
The testo 876 is a handy and robust thermal imager. It opens the
door to contactless determination and illustration of the temperature
distribution on surfaces for you.
Typical areas of application are:
• Building inspection: Energetic assessment of buildings,
inspection of heating, ventilation and air conditioning systems.
• Preventative maintenance (servicing): Mechanical and electrical
inspection of systems and machines
• Production monitoring (quality assurance): Monitoring
production processes
Basic properties:
• High-quality wide-angle lens 32° x 23, detector 160 x 120,
manual focus, 2 GB SD card for approx. 1000 images, minimum
focus distance 10 cm, integrated digital camera, dynamic
motorfocus, exchangeable lens, display of surface moisture
distribution
Export control
Thermal imagers may be subject to the export restrictions of the
European Union.
Please observe the national regulations for export control when
exporting.
3.2. Technical data
Infrared image output
Characteristic Values
Field of vision/min.
focusing distance
Standard lens: 32° x 23°/0.1 m (0.33 ft)
optional:
9° x 7° / 0.5 m (1.64 ft)
Thermal sensitivity
(NETD)
<80mK at 30°C (86°F)
Geometric resolution
Standard lens: 3.3 mrad
Telephoto lens: 1 mrad
3 Specifications
8
Characteristic Values
Refresh rate 9Hz
Focus manual + motorized
Detector type FPA 160 x 120 pixels, a.Si
Spectral range 8 - 14 μm
Visual image output
Characteristic Values
Field of vision/min.
focusing distance
33.2° x 25.2° / 0.4m (1.31ft.)
Image size 640 x 480 pixels
Refresh rate 8 to 15 Hz
Image presentation
Characteristic Values
Image display
3.5" LCD with 320 x 240 pixels, Foldable by
90° and rotable by 180°
Display options
Infrared image/real image/infrared and real
image
Video output USB 2.0
Video stream 9 Hz
Colour palettes 4 options
Measuring
Characteristic Values
Temperature range
(can be changed)
-20 - 100 °C/0 - 280°C (-4 - 212 °F/32 536°F)
Accuracy
±2 °C (±3.6 °F) or ±2 % of reading
(whichever is the greater)
Reproducibility
±1 °C (±1.8 °F) or ±1 % (whichever is the
greater)
Measuring point
minimum diameter
Standard lens: 10 mm at 1 m
Telephoto lens: 3 mm at 1 m
On-time (time to
image)
30 s
3 Specifications
9
Characteristic Values
Measuring functions
Standard measurement (1-point), Cold-/
Hotspot, Display of the surface moisture
distribution via manual entry of the ambient
humidity/temperature, solar (manual entry of
the radiation intensity), isotherm, min./max.
on area
Image storage
Characteristic Values
File format .bmt
Export options in .bmp, .jpg, .csv
Removable memory SD card
Memory capacity
Scope of delivery: 2 GB (approx. 1000
images)
Lens
Characteristic Values
Standard lens 32° x 23°
Telephoto lens 9° x 7°
Aperture 1.0
Audio functions
Characteristic Values
Sound
recording/playback
via headset (included in delivery)
Recording period max. 30 s per image
Housing
Feature Values
Housing material ABS and TPE
Housing fronts ABS and PC (nickel plated)
3 Specifications
10
Power supply
Characteristic Values
Battery type
Fast-charging, Li-ion battery can be
changed on-site
Operating time approx. 5 h at 20 - 30 °C (68 - 86 °F)
Charging option In instrument/in charging station (optional)
Mains operation Yes, with mains unit 0554 8808
Mains unit output
voltage
5 V/4 A
Ambient conditions
Characteristic Values
Operating
temperature
-15 - 40 °C (5 - 113 °F)
Storage
temperature
-30 - 60 °C (-22 - 140 °F)
Air humidity 20 - 80 %RH, not condensing
Enclosure rating of
the housing
IP54 (Interface terminals closed, battery
connected, lens mounted)
Physical features
Characteristic Values
Weight 900 g (including battery)
Dimensions 210 x 85 x 97mm (8.27 x 3.35 x 3.82")
Tripod mounting Yes, with adapter (included in delivery)
Vibration 2 G
Standards, tests, warranty
Characteristic Values
EU Directive 2004/108/EC
Vibration IEC 60068-2-6
Warranty
2 years, warranty conditions: see website
www.testo.com/warranty
4 Product description
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4 Product description
4.1. Overview
Product components
1 [Motor focus controller]: for motorized focussing.
[Trigger]: for recording (freezing/saving) images.
2 Lens digital camera: to record visual images
3 Lens infrared camera: to record thermographic images.
Exchangeable lens.
4 Rotating ring Manual focussing: for manual focussing.
5 Lens lock ring
6 Metric thread: To fasten a tripod
Do not use table tripods, danger of pipping over!
7 [Motor focus switch]: to switch the motor ficus on/off.
8 Battery compartment with battery shaft, buffer battery shaft,
memory card shaft
9 Wrist strap
10 Fixing ring for carrier belt
4 Product description
12
11 Control keys:
Key Functions
[ ]
Switch the camera on/off
[OK] and Joystick
• Press [OK]:
Open menu, confirm selection/setting.
• [OK] move up / down / right / left
= Joystick-function:
Select functions, navigate
[Esc]
Cancel action.
12 Interface terminal USB-interface, mains socket to connect the
supplied mains unit, headset socket, status LED
Status-LED: off (no mains unit connected), flashes (mains unit
connected and rech. batt. is being charged), lights (mains unit
connected and rech. batt. charging completed).
13 Left/right speed dialling key ["xy"]: Call up function. The display
shows which function is assigned to the speed dialling key.
14 Display, foldable by 90° and rotable by 180°
When the camera is switched on, the display remains
active even when folded in. It is recommended to use the
energy saving options to prolong the battery lifetime, see
Power-save options…, page 31.
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