optris BR 400 User manual

Operator's Manual
optris®BR 400
Calibration source

Optris GmbH
Ferdinand-Buisson-Str. 14
13127 Berlin
Germany
Tel.: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.optris.de

-Table of Contents 3-
Table of Contents
Table of Contents .............................................................................................................................................3
1General Information.................................................................................................................................6
1.1 Description ....................................................................................................................................... 6
1.2 Warranty........................................................................................................................................... 7
1.3 Scope of supply................................................................................................................................ 8
1.4 Maintenance..................................................................................................................................... 8
2Specification.............................................................................................................................................9
2.1 General Specification ....................................................................................................................... 9
2.2 Electrical Specification ..................................................................................................................... 9
2.3 Controller Specification (preset)....................................................................................................... 9
2.4 Measurement Specification............................................................................................................ 10
3Operation ................................................................................................................................................11
3.1 Installation ...................................................................................................................................... 11

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3.2 Control Elements............................................................................................................................ 11
3.3 Switch On....................................................................................................................................... 13
3.4 Setup of the Set Point Value.......................................................................................................... 13
3.5 Lock of Programming Keys............................................................................................................ 13
3.6 Advices for Operation..................................................................................................................... 14
4Circuit Diagram ......................................................................................................................................15
5Troubleshooting.....................................................................................................................................16
6Basics of Infrared Thermometry...........................................................................................................17
7Emissivity ...............................................................................................................................................18
7.1 Definition......................................................................................................................................... 18
7.2 Determination of unknown Emissivities.......................................................................................... 18
7.3 Characteristic Emissivities.............................................................................................................. 19
8Calibration of Infrared Thermometers [1] [2] ......................................................................................20
8.1 Transfer standard........................................................................................................................... 22

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8.2 ITS-90............................................................................................................................................. 23
8.3 Calibration Geometry ..................................................................................................................... 24
8.4 Calibration ...................................................................................................................................... 27
Appendix A –Declaration of Conformity .....................................................................................................29
Appendix B –Literature.................................................................................................................................30

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1 General Information
1.1 Description
Thank you for choosing the optris®BR 400 calibration source.
The BR 400 is a rugged calibration source and can be used for calibration and check up of infrared
thermometers. It contains of three main components:
Radiation surface
Heater
Temperature controller and Pt100 probe
The radiation surface is made of aluminium with a special thermal conductivity and V-shaped grooves.
The temperature of this surface is controlled by a Pt100.
The maximum deviation between the surface temperature and the temperature at the contact point of the
Pt100 is 0,1 % (Tmax=0,1 %).
All radiation surfaces are produced in a special black-finishing process, which guarantees a high quality and
high uniformity of the surface. A special coating realizes a high emissivity of the surface in the infrared
spectrum.
To avoid a damage of the special coating, please do not touch the radiation surface with
sharp or spiky objects.

-General Information 7-
On the top section of the black body you will find a hole. You can place a thermocouple probe here for an
external monitoring of the radiator temperature.
Read the manual carefully before the initial start-up. The producer reserves the right to change
the herein described specifications in case of technical advance of the product.
The optris® BR 400 is not suitable for continuous operation (max. 8-10 h/day).
Long-term operation at Tmax = 400 ° C is not recommended.
1.2 Warranty
Each single product passes through a quality process. Nevertheless, if failures occur please contact the
customer service at once. The warranty period covers 24 months starting on the delivery date. After the
warranty is expired the manufacturer guarantees additional 6 months warranty for all repaired or substituted
product components. Warranty does not apply to damages, which result from misuse or neglect. The
warranty also expires if you open the product. The manufacturer is not liable for consequential damage or in
case of a non-intended use of the product.
If a failure occurs during the warranty period the product will be replaced, calibrated or repaired without
further charges. The freight costs will be paid by the sender. The manufacturer reserves the right to
exchange components of the product instead of repairing it. If the failure results from misuse or neglect the
user has to pay for the repair. In that case you may ask for a cost estimate beforehand.

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1.3 Scope of supply
BR 400 calibration source
Operators manual
Test log (according DIN VDE 0702)
Calibration certificate
You will find the serial number on the unit. Always use this number when you contact the customer service
concerning maintenance, additional order of components, spare parts or repairs.
1.4 Maintenance
Cleaning the housing: To clean the exterior housing use a humid tissue (wetted with water or a mild
commercial cleaner).
Never use cleaning compounds which contain solvents.

-Specification 9-
2 Specification
2.1 General Specification
Ambient temperature:
0...50 °C (during operation)
Weight:
4,5 kg
Dimensions:
325 mm x 230 mm x 230 mm
2.2 Electrical Specification
Temperature sensor:
Pt100
Controller:
PID
Power supply:
230 V AC (± 10 %), 50 Hz
Power consumption:
max. 1000 W
2.3 Controller Specification (preset)
P = 1
I = 105
D = 26
The controller parameters are factory preset for an optimum of performance and safety operation
of the black body calibration source. Please do not change these values [EXPIRY OF WARRANTY].

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2.4 Measurement Specification
Temperature range:
TUmg+5 °C to 400 °C
Accuracy 1):
± 0,5 °C to 50 °C
± 1,0 °C to 100 °C
± 1,3 °C to 250 °C
± 2,0 °C to 400 °C
Temperature resolution:
0,1 °C
Aperture diameter:
128 mm
Emissivity:
0,97 ±0,02 at 8-14 µm
Warm-up time:
15 min. (from 25 °C to 100 °C)
40 min. (from 25 °C to 400 °C)
Cool-down time:
60 min. (from 100 °C to 50 °C)
90 min. (from 400 °C to 50 °C)
1) For IR thermometers with a spectral sensitivity of 8-14 µm and an emission factor between 0,9 and 1,0.
For an exactly determination of the radiation temperature of the calibration source we recommend the use of a reference
IR thermometer (e.g. optris LS DCI). ►8 Calibration of Infrared Thermometers [1] [2]