Datasheet OMC-506
OMC-506 Barometric
Pressure Sensor
The OMC-506 Barometric pressure sensor is a high precision sensor with which Observator can guarantee an accuracy of ± 0.3 hPa. This sensor is often used within Met
systems on board offshore platforms, within the Obsermet
OMC-410 MultiMetProbe and various other applications.
The OMC-506 is based on a stable, floating piezoresisitive
transducer and a micro-processor with build in 16 bit D/A
converter. Output RS485 and an industry standard 4..20
mA signal
Features:
 High accuracy ± 0.3 hPa

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Temperature compensated
Range 800..1100 hPa (on request 600..1100 hPa)
RS485 output and 4..20 mA output
Low power consumption
Fast response
Excellent Long term stability
Barometric pressure sensor in OMC-183 housing
Platform
OMC-506 Barometric
Pressure Sensor
General Description
The OMC-506 Barometric pressure sensor is depended on
the configuration mounted into a cabinet together with the
signal conditioning unit OMC-183, mounted into the housing of the MultiMetProbe or in a separate housing. In all
situations there is the possibility to ventilate to the outside
air with a process connection.
Data Summary
 Operating range 800 to 1100 hPa
On request other ranges available

Floating piezoresisitive transducer

Temperature compensated (polynomial compensation)

Power 8..28 Vdc

Output RS485 and 4..20 mA

Accuracy ± 0.3 hPa

Temperature range –40°C..70°C

CE-conformity EN50081-2, EN 50082-2

Material st.st. 316
Cable layout
White: Out/Ground Black: + Vcc Blue: RS485 A
Yellow: RS485B (Red not used)
OMC-506 in separate housing
OMC-506 in cabinet together with signal conditioning unit
Optional
 Also available as Eex version (Atex): OMC-506-E

OMC-509 Pressure Port to minimise airflow
influences , when the barometric sensor is vented outside via tube.
Eex Version: OMC-506-E
Version 032015 The Observator range is in continuous development and so specifications may be subject to change without prior notice
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