Testo 881-2 Data sheet

11

SAVE NOW!

with the testo 881-3

in a set

The thermal imager testo 881

· NETD < 80 mK

· High-quality standard lens 32° x 23°

· Integrated digital camera with power LEDs

· Display of surface moisture distribution

· Auto Hot/Cold Spot Recognition

· Dynamic motor focus

· Temperature range -20 to +350 °C

· 33 Hz (inside the EU, outside 9 Hz)

· Headset for voice recording

· Isotherm display in instrument

· Min./Max. on area calculation

· High-temperature measurement (optional)

In addition to the equipment of the testo 881-3,
the set also includes:

· Telephoto lens 9° x 7°

· Protective glass

· Additional battery

· Charger

· Soft-Case

testo 881-3 set

· NETD < 80 mK

· High-quality standard lens 32° x 23°

· Integrated digital camera

· Auto Hot/Cold Spot Recognition

· Manual focus

· Temperature range -20 to +350 °C

· 33 Hz (inside the EU, outside 9 Hz)

testo 881-1

testo 881-1

Order no.: 0563 0881 V1

· NETD < 80 mK

· High-quality standard lens 32° x 23°

· Telephoto lens (optional)

· Auto Hot/Cold Spot Recognition

· Display of surface moisture distribution

· Manual focus

· Temperature range -20 to +350 °C

· 33 Hz (inside the EU, outside 9 Hz)

· Headset for voice recording

· Isotherm display in instrument

· Min./Max. on area calculation

testo 881-2

testo 881-2

Order no.: 0563 0881 V2

· NETD < 80 mK

· High-quality standard lens 32° x 23°

· Telephoto lens (optional)

· Integrated digital camera with power LEDs

· Display of surface moisture distribution

· Auto Hot/Cold Spot Recognition

· Dynamic motor focus

· Temperature range -20 to +350 °C

· 33 Hz (inside the EU, outside 9 Hz)

· Headset for voice recording

· Isotherm display in instrument

· Min./Max. on area calculation

· High-temperature measurement (optional)

testo 881-3

testo 881-3

Order no.: 0563 0881 V3

testo 881-3 set

Order no.: 0563 0881 V4

Additionally in case:
Lens protection glass
Telephoto lens
Additional battery
Fast battery charger
Soft-Case
High-temperature measurement

All imagers are delivered in a robust case incl. professional software, SD card, USB cable, mains unit, Li-ion rechargeable battery and tripod adapter.

All imagers are delivered in a robust case incl. professional software, SD card, USB cable, mains unit, Li-ion rechargeable battery and tripod adapter.

–

––

–

Standard Optional Not available

Order no.:

testo 881-1

0563 0881 V1

testo 881-2

0563 0881 V2

testo 881-3

0563 0881 V3

testo 881-3 set

0563 0881 V4

C1
A1
D1
E1
H1
G1

Subject to change without notice.0981 7374/dk/Si/Q/08.2009

testo AG · Postfach 1140 · D-79849 Lenzkirch
Testo-Strasse 1 · D-79853 Lenzkirch · Telephone [phone] · Fax [phone]
e-mail: [e-mail] · Internet: www.testo.de

Committing to the future

See more with the thermal imagers

testo 875 and testo 881

NEW

For professional
industrial thermography

22

Infrared radiation cannot be seen by the human
eye. However, all objects with a temperature above
absolute zero, approximately - 273 degrees Celsius,
emit infrared thermal radiation.

Thermal imagers can convert infrared radiation into
electrical signals and thus render it visible. The testo
875 and testo 881 thermal imagers quickly and reliably
discover anomalies and weak spots in industrial
maintenance and production monitoring. Materials and
components are checked completely damage-free.
Problematic areas are detected before a malfunction
occurs or fire risks occur. Whereas with other methods
you have to stop production processes or dismantle
cable or pipeline systems, with a Testo thermal imager,
a single glance is enough.

Industrial thermography with Testo saves time,
energy and money and ensures more security
allround.

Even the smallest temperature differences can
be identified with the high temperature resolution of
the new Testo thermal imagers. Highly flexible and
application-oriented, exchangeable lenses ensure that
the right image section is always visible in the imager
display. The additionally integrated digital camera
considerably facilitates documentation.

Testo thermal imagers for day-to-day applications
in industry. Provide security and prevent damage!

testo 875 and testo 881 for
professional industrial thermography

Thermal imager testo 881

Thermal imager testo 875

1.

2.

3.

4.

33

Testo thermal imagers
stand out thanks to:

Professional analysis software

The clearly structured and user-friendly PC software
allows the comprehensive analysis and evaluation of
thermograms. You can now process and analyze several
infrared images at the same time and document them in a
report together with their respective real images. In order to
achieve precise analysis results, it is possible to correct
the different emissivities of the various materials by area in
the thermal image, right up to individual pixels. The

professional software is included in delivery with all
Testo thermal imagers.

Soft-Case for your thermal imager

Your thermal imager is always securely transported
in the practical Soft-Case. It is no longer necessary to
hold it in your hand or store it in the case between
measurements, but can be toted easily using the
shoulder strap – day-to-day work is more flexible,

both hands are free.

Exchangeable lenses for more flexibility

A wide-angle and a telephoto lens allow adaptation to the
different sizes of and distances from measurement objects.
The 32° standard lens shows a large image section and
thereby ensures a quick overview. The 9° telephoto lens
offers the option of reliably detecting more details, even at
greater distances. The Testo exchangeable lenses for

individual thermography.

Intuitive menu

The one-hand operation with motor focus and 5-way
joystick offers a fast and exact limitation of possible
damage and thereby supports targeted maintenance. With
the simple addition of folder structures, the administrative
efforts for planning and managing the images as well as
locations and tours are reduced to a minimum.

Easy and precise analysis

Just take it with you in the Soft-Case

Simply change the lens

Easy operation

1.

2.

3.

4.

4

testo 875:
The 4 most important advantages of a thermal
imager and the typical applications...

Good image quality

With the temperature resolution of < 110 mK, even minimal
temperature differences are shown.

Automatic Hot/Cold Spot Recognition

Critical temperature conditions are shown with the Automatic Hot/
Cold Spot Recognition. Uninterrupted error localization on site is therefore
ensured. The Auto Hot/Cold Spot Recognition also helps you with analysis
and documentation when evaluating the details later on a PC.

Lens protection glass

The lens protection glass, made of germanium, is permeable to infrared
radiation and is simple to attach to the lens. It thereby protects the valuable
optics from soiling and scratches.

Integrated digital camera

The testo 875 with integrated digital camera links real and
infrared images for your fast, reliable and simple documentation
of the measurement.

6

Thermography in industry

Thermography has proven its worth as a tool for preventative maintenance for monitoring both mechanical and
electrical systems or production processes. In the Research and Development sector, thermal imagers are also
used in the inspection of heat distribution on circuit boards.

Infrared thermography allows an evaluation of the heat status in low,
middle and high-voltage systems. Thermographic images allow early
recognition of defective components or connections. Often, damages
make themselves known early on by means of an increased generation
of heat at the defective component. The thermal imager visualizes this
temperature increase. Preventative measures can therefore be taken
early on, before costly production downtimes occur, and risks of fire are
minimized.

For regular checks in electrical maintenance

Documentation of results plays a particularly important part in preventive
maintenance. The testo 875 and the testo 881 offer integrated location
management for the structuring of inspection routes. In addition to the
infrared recording, a real image of the location can be recorded with the
integrated digital camera. The power LEDs also illuminate the dark areas
here. The professional software automatically allocates the real image to
the infrared image.

Thermal imager testo 875

Hot/Cold Spot Recognition

More reliability in
quality assurance and production monitoring

The testo 875 and testo 881 thermal imagers ensure precise
situation analyses and thereby offer support during process
monitoring and quality assurance at the product. With one
glance, anomalies in the distribution of heat in components are
detected quickly and without contact, as are foreign bodies in
the production processes.

For support in preventive
mechanical maintenance

A reliable early recognition of developing damage to process-relevant
system components is important in order to guarantee high security
and reliability of the machines. A high level of heat emissions,
especially from mechanical components may indicate an elevated
level of stress. This is caused, for example, by friction, faulty
adjustment, component tolerances or a lack of lubricant.

With its high temperature resolution of < 80 mK, the testo 881
provides an exact diagnosis. Critical heat statuses can be identified
directly in the instrument using the isotherm function and preventative
measures taken.

For fast and easy
monitoring of filling levels

Level control in sealed fluid tanks has proved to be a useful
tool for avoiding machine damage and therefore production
losses. If, for example, the fluid in coolant tanks falls to a
dangerously low level, machines may no longer be cooled
correctly. They run hot and may fail. Often, an automatic level
control regulates the level of coolant and issues an alarm if
the level is too low. However, this automatic control can also
fail. In this case, a regular look through a thermal imager will
also help.

Min./Max. on area

Digital camera

Good

Isotherm function

Motor focus

Protective glass

For reliable high-temperature measurement

The testo 881 flexibly adapts to the industrial
requirements. With the high-temperature option,
the measuring range can be extended up to 550 °C.

High temperatures are generally accompanied by a
greater distance from the measurement object. The testo
875 and testo 881 enable adaptation to different
conditions by means of exchangeable lenses.

Ensuring power generation

Energy is an important commodity that must
always be available in sufficient amounts. Power
stations and utilities therefore ensure that failures
are prevented from the generation all the way
through to the distribution of power. Testo thermal
imagers support the preventative maintenance
of electrical and mechanical components.
Developing damage is thereby detected early on.

Exchangeable lenses

High temperature option

9

Analyzing the superheating of
circuit boards in a targeted manner

In the Research and Development sector, thermal imagers
are used for the targeted analysis of heat distribution, e.g. on circuit
boards. The components are inspected quickly and without
contact. The particular advantage of testo 875 and testo 881 is in
the combination of a 32° standard lens with a minimum focus
distance of 10 cm. Small details can thereby
be detected on a large image section.

Voice recording

Minimum focus distance of 10 cm

Thermal imager testo 881

1.

2.

3.

4.

5.

6.

7.

5

testo 881:
The 7 most important advantages of a thermal
imager and the typical applications...

Highest image quality

With a thermal resolution of < 80 mK, the testo 881
delivers high-resolution images in which even the smallest
temperature differences are emphasized and visualized.

Voice recording

The practical headset and the integrated voice recording function
facilitate the documentation of the measurement results. Comments can
be made on every recording on site. This valuable additional information
is stored together with the thermal image.

Built-in digital camera with power LEDs

In addition to the infrared recording, the testo 881 creates a parallel real
image of the location with the integrated digital camera. The integrated
power LEDs guarantee you optimum illumination of dark areas when
recording real images.

Isotherm function

With the optical colour alarm, areas of critical temperature on
the measurement object are immediately emphasized in colour.

Min/Max on Area

The minimum and maximum values of an image section
can be provided at a glance live directly on site.

Motor focus for one-hand operation

The motor focus enables you to focus the image using
a focus rocker switch. This enables operation of the thermal imager
with just one hand.

High temperature option

With the high-temperature option, the measuring range of the testo 881
can be flexibly extended. If required, simply fit a high-temperature filter
onto the camera lens. Temperatures up to 550 °C can thereby be
measured.

10

· NETD < 110 mK

· High-quality standard lens 32° x 23°

· Auto Hot/Cold Spot Recognition

· Manual focus

· Temperature range

-20 to +280 °C

SAVE NOW!

with the testo 875-2

in a set

· NETD < 110 mK

· High-quality standard lens 32° x 23°

· Integrated digital camera

· Display of surface moisture distribution

· Auto Hot/Cold Spot Recognition

· Manual focus

· Temperature range -20 to +280 °C

In addition to the equipment of the testo 875-2, the set also includes:

· Telephoto lens 9° x 7°

· Protective glass

· Additional battery

· Charger

· Sun Shield

The thermal imager testo 875

testo 875-2 set

testo 875-1

testo 875-2 set

Order no.: 0563 8752

· NETD < 110 mK

· High-quality standard lens 32° x 23°

· Integrated digital camera

· Display of surface moisture distribution

· Auto Hot/Cold Spot Recognition

· Manual focus

· Temperature range

-20 to +280 °C

· Telephoto lens (optional)

testo 875-2

testo 875-2

Order no.: 0560 8752

Aluminium tripod

Professional, extremely light and stable aluminium tripod with quick-release legs
and a 3-way tripod head

0554 8804

Lens protection glass

Special protective glass made of germanium for optimum protection of the lens against
dust and scratches

0554 8805

Additional battery

Additional lithium-ion battery for extending the operating time

0554 8802

Fast battery charger

Desktop fast battery charger for two batteries for optimizing the charging time

0554 8801

Sun Shield

Special sun protection for the display of the testo 881 and testo 875 in bright environments

0554 8806

0554 0051

ISO calibration certificates for testo 880

Calibration points at 0 °C, 25 °C, 50 °C in measuring range -20 °C to 100 °C

0520 0489

Calibration points at 0 °C, 100 °C, 200 °C in measuring range 0 °C to 350 °C

0520 0490

Freely selectable calibration points in the range between -18 °C to 250 °C

0520 0495

Emissivity adhesive tape

Adhesive tape, e.g. for reflective surfaces (roll, L.: 10 m, W.: 25 mm), E=0.95
heatproof up to +300 °C

Accessories Order no.

Soft-Case

Practical carrying option for testo 881 and testo 875 (incl. shoulder strap)

0554 8814

Retrofit telephoto lens

(only with testo 881-2 and -3 and with testo 875-2); please contact our customer service.

Retrofit high-temperature measurement

(only with testo 881-3); please contact our customer service.

testo 875-1

Order no.: 0560 8751

All imagers are delivered in a robust case incl. professional software, SD card, USB cable, mains unit, Li-ion rechargeable battery and tripod adapter.

12

What is the purpose of these features
in thermography?

The NETD indicates the smallest possible temperature difference that can
be resolved by the imager. A low NETD guarantees the resolution of the
smallest temperature differences. The following rule of thumb applies: The
smaller this value is, the better the measurement resolution of the imager
and the better the image quality.

The temperature range indicates up to which temperatures the imager
is able to record and measure the heat radiation of objects.

The refresh rate indicates how often the thermal image is refreshed in a sec­ond.

The 32° lens quickly records a large image section and thereby supplies a
good overview of the temperature distribution of the measurement object –
at one glance, you have more in the picture.

The exchangeable telephoto lens assists in the measurement of
smaller details and visualizes details in the thermal image, even at greater
distances.

The coldest and warmest spot of the measurement object are
automatically shown directly in the thermal image in the imager display –
critical heat conditions can be detected at a glance.

*inside the EU, outside 9 Hz

The minimum and maximum values of an image section can be provided
at a glance live directly on site.

The optical colour alarm localizes critical areas easily and directly in the
thermal image on site. All spots in the thermal image with a temperature
value within a defined range are marked in colour and emphasized.

Via the manual input of ambient temperature, air humidity and dewpoint in
the room, mould risk spots are visualized in the thermal image at a glance.

Identified weak spots can be commented on by means of voice
recording. Valuable additional information can thereby be documented
on site.

Quick and simple object inspection thanks to the display of infrared and
real image. The digital real image is automatically stored simultaneously
with each infrared image.

The integrated power LEDs guarantee you optimum illumination of dark
areas when recording real images.

The dynamic motor focus allows you to focus the infrared image with
just one hand.

< 110 mK

< 80 mK

9 Hz 33 Hz*

-20 to +350 °C-20 to +280 °C

testo 875-1 testo 875-2 testo 881-1 testo 881-2 testo 881-3

High thermal sensitivity (NETD)

Temperature measuring range

Refresh rate

Standard lens 32° x 23°

Exchangeable telephoto lens 9° x 7°
(optional)

Automatic Hot/Cold Spot Recognition

Min./Max. on area calculation

Isotherm function

Display of surface moisture
distribution via manual input

Voice recording

Integrated digital camera

Integrated LEDs

Motor focus

Feature

With the high-temperature option, the measuring range can be flexibly
extended. With a high-temperature filter, measurement of temperatures up
to 550 °C is possible.

High temperature up to 550 °C
(optional)

13

Technical data, testo 875 and testo 881

–

640 x 480 pixels

640 x 480 pixels

–

640 x 480 pixels

only IR image

only IR image/

only real image/

IR and real image

only IR image/

only real image/

IR and real image

only IR image

only IR image/

only real image/

IR and real image

– –

+350 °C to +550 °C

–

Yes

Yes

–

Yes

– –

Yes

–

–

Yes

Yes Yes

–

optional

–

optional

–

yes (by means of manual

input)

–

yes (by means of manual input)

Centre point

Standard measurement

(1-point)

Standard measurement (1-point)

Hot/Cold Spot Recognition

– –

–

yes (by means of headset)

–

yes (laser classification 635 nm, class 2)

– –

±3 % of mv

(+350 °C to +550 °C)

testo 875-1 testo 875-2 testo 881-1 testo 881-2 testo 881-3

FPA 160 x 120 pixels, a.Si FPA 160 x 120 pixels, a.Si

< 110 mK at +30 °C < 80 mK at +30 °C

3.3 mrad (standard lens), 1.0 mrad (telephoto lens) 3.3 mrad (standard lens), 1.0 mrad (telephoto lens)
9 Hz 33 Hz for EU, otherwise 9 Hz

manual and motor focusmanual manual

8 to 14 µm 8 to 14 µm

–

33° x 25° / 0.4 m

33° x 25° / 0.4 m

–

33° x 25° / 0.4 m

32° x 23° / 0.1 m (standard lens),

9° x 7° / 0.5 m (telephoto lens)

32° x 23° / 0.1 m (standard lens)

9° x 7° / 0.5 m (telephoto lens)

3.5” LCD with 320 x 240 pixels 3.5” LCD with 320 x 240 pixels

4 options

(ironbow, rainbow,blue/red, greyscale)

9 options

(ironbow, rainbow,cold/hot, blue/red, grey, inverted grey, sepia,Testo, ironbow HT)

-20 °C to +100 °C/

0 °C to +280 °C (switchable)

-20 °C to +100 °C/

0 °C to +350 °C (switchable)

±2 °C, ±2 % of mv (-20 °C to +280 °C) ±2 °C, ±2 % of mv (-20 °C to +350 °C)

0.01 to 1 0.01 to 1
manual

Hot/Cold Spot Recognition

Two-point measurement

–

Isotherms

–

–

Min./Max. on area

–

manual

10 mm at 1 m (standard lens),

3 mm at 1 m (telephoto lens)

10 mm at 1 m (standard lens),

3 mm at 1 m (telephoto lens)

.bmt; export options in .bmp, .jpg, .csv .bmt; export options in .bmp, .jpg, .csv

2 GB SD card (approx. 1000 images) 2 GB SD card (approx. 1000 images)

Fast-charging, Li-ion battery can be changed on site Fast-charging, Li-ion battery can be changed on site

4 hours 4 hours

In instrument/in charging station (optional) In instrument/in charging station (optional)

Yes Yes

-15 °C to +40 °C -15 °C to +40 °C

-30 °C to +60 °C -30 °C to +60 °C

20 % to 80 % not condensing 20 % to 80 % not condensing

IP54 IP54

2G 2G

approx. 900 g approx. 900 g

152 x 108 x 262 mm 152 x 108 x 262 mm

Yes Yes

ABS ABS

Windows XP (Service Pack 2), Windows Vista,

USB 2.0 interface

Windows XP (Service Pack 2), Windows Vista,

USB 2.0 interface

2004/108/EC 2004/108/EC

2 years 2 years

USB 2.0 USB 2.0

Infrared image output

Detector type
Thermal sensitivity (NETD)
Field of view/min. focus distance

Geometric resolution (IFOV)
Image refresh rate
Focus
Spectral range

Visual

Optical field/min. focus distance
Image size

Image presentation

Image display
Display options

Video output
Colour palettes

Measurement

Temperature range

High-temperature measurement (optional)
Accuracy

Minimum diameter measurement point

Setting emissivity
Reflected temperature compensation

Imager equipment

Digital camera
Power LEDs
Motor focus
Standard lens (32° x 23°)
Telephoto lens (9° x 7°)
Laser measuring spot marking
Voice recording
Display of surface moisture distribution

Measuring functions

Image storage

File format
Data storage device

Power supply

Battery type
Operating time
Charging options
Mains operation

Ambient conditions

Operating temperature range
Storage temperature range
Air humidity
Protection class of housing
Vibration (IEC 68-2-6)

Physical features

Weight
Dimensions (L x W x H)
Tripod mounting
Housing

PC software

System requirements

Norms, tests, warranty

EU guideline
Warranty