© Gossen Metrawatt GmbH
Edited in Germany • Subject to change, errors excepted • PDF version available on the Internet
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Gossen Metrawatt GmbH
Südwestpark 15
90449 Nürnberg •
Germany
Phone +49 911 8602-111
Fax
+49 911 8602-777
www.gossenmetrawatt.com
Gossen Metrawatt GmbH
METRATHERM IR BASE
3.2
Symbols on the Instrument
4
Technical Data
Power
Ambient Conditions
Electrical Safety
Electromagnetic Compatibility (EMC)
Mechanical Design
Measurements
5
Preparation
The METRATHERM IR BASE is powered by a 9 V battery. One
battery is included in delivery; replacements must be provided.
You have to install the battery before first use and replace it later if
depleted. If the battery runs low, the low battery LED on the instru-
ments lights up.
The measurement unit can be °C or °F. The unit is set by an inter-
nal switch located in the battery compartment. If you want to
change the unit later on, also follow the steps below but without
replacing the battery
Required tools: Philips screwdriver.
The instrument is switched off.
1. Place the instrument face down on a stable surface.
2. Loosen and remove the screw from the battery compartment
cover.
3. Unlock and remove the battery compartment cover.
4. Set the internal °C/°F switch to the desired unit.
5. Connect the 9 V battery to the battery snap.
6. Insert the 9 V battery into the battery compartment, making
sure that the wires are not damaged (e.g. squished).
7. Place the battery compartment cover onto the battery com-
partment and press it back into place.
8. Secure the battery compartment cover with the screw.
The instrument is provided with power and ready for operation.
6
Operation
The METRATHERM IR BASE is an accessory. It‘s operation is
described in the documentation of the instruments it may be used
with.
General Information for Using the Instrument
When using the instrument, make sure that the target is larger than
the instrument's spot size. The smaller the target, the closer you
should be to it. When accuracy is critical, make sure the target is
at least twice as large as the spot size. Refer to the chart printed
on the back of the instrument for more information.
The instrument automatically compensates for temperature devia-
tions from ambient temperature. However, the IR sensor needs
time (up to 30 minutes) to adjust to temperature changes.
7
CE Declaration
The instrument fulfills all requirements of applicable EU directives
and national regulations. We confirm this with the CE mark. The
CE Declaration of Conformity is available upon request.
Warning concerning a point of danger
(attention, observe documentation!)
Warning! Laser radiation
European conformity marking
The instrument and the battery may not be disposed of
with household trash.
Current and further information is available on our web-
site at http://www.gossenmetrawatt.com under the
search terms “WEEE” and “environmental protection”.
Power supply:
9 V battery, type NEDA 1604 / IEC 6F22
Operating temperature:
0 … +50 °C
Storage temperature:
−20 … +60 °C
Relative humidity:
max. 80 %, no condensation allowed
Elevation:
max. 2000 m
Measuring category:
Cat
O
Pollution degree:
2
Protection class:
0 per IEC 61140
Interference emission:
EN 61326-1 class A
Interference immunity:
EN 61326-1
EN 61326-2-1
Protection:
Housing: IP40
per DIN VDE 0470-1/EN 60529
Housing :
164 × 50 × 40 cm (W × H × D)
Weight: 182
g
Temperature range –30 … +550 °C
Output
1 °C or 1 °F (per 1 mV)
Accuracy
±2 % of reading or ± 2 °C (4 °F), whichever is
greater.
Accuracy is specified for ambient tempera-
ture range of +18 … +28 °C.
Emissivity
0.95 fixed value
!
Field of View
Distance/spot size = approx. 8:1 ratio
Object under test must be at least 2.54 cm.
(Calculated at 90 % energy on the focal
point.)
Laser
power
Less than 1 mW
wavelength
630… 670 nm
Spectral response 6 … 14 μm (wavelength)
