Omega OS550A, User Manual, Page: 8 / 77

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CAUTION & SAFETY INFORMATION
If the equipment is used in a manner not specified in this manual, the
protection provided by the equipment may be impaired.
The Installation category is one (1).
The output terminals of this product are for use with equipment (digital
meters, chart recorders, etc.) which have no accessible live parts. Such
equipment should comply with all the applicable safety requirements.
Do not operate the equipment in flammable or explosive environments.
The unit comes with two 4.6 m (15') shielded multi-conductor cables. The
sensor cable is a five conductor, 24 AWG stranded wire with a rating of 600
Vdc, 205°C (401°F) PTFE insulation. The power/output cable is an eight
conductor 24 AWG stranded wire with rating of 300 Vdc, 105°C (221 °F)
PVC insulation.
Power must be disconnected before making any electrical connections.
The recommended power supply should be VDE or UL approved. Rating: 8-
24 Vdc @ 100 mA minimum power with overload protection, current limited
to 500 mA.
The supply voltage to the transmitter should not exceed 24 VDC.
There is only one fuse in the OS550A. Disconnect power before replacing the
fuse. The fuse must be replaced with one of identical size and rating. Fuse
Specifications: 125 mA/250 Vac, Time-lag, 5 x 20 mm with UL and/or VDE
Approvals such as Wickmann No. 19195-028.
All connections made to the thermometer should be made via a stranded
wire, shielded cable, 24 AWG (min), such as OMEGA Engineering's Model
TX4 or TX8 series. Wiring requirements for this unit are Class II.
SAFETY WARNINGS AND IEC SYMBOLS
This device is marked with international safety and hazardous symbols in
accordance with IEC1010. It is important to read and follow all the
precautions and instructions in this manual before operating or
commissioning this device as it contains important information relating to
safety and EMC. Failure to follow all the safety precautions may result in
injury and/or damage to your equipment.
IEC Symbol
Description
Caution - Refer to the accompanying
document(s).
Direct Current
Laser Symbol
OS550A/OS550A-BB Series
Industrial Infrared Thermometer