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The Marine Digital Barometer, the instrument
forms
part of the marine meteorological system designed and built
at AGI.
The system comprises of a number of dedicated environmental
sensors (customer specific), connected together and monitored
via a microprocessor controlled electronic hub, the Meteorological
Interface Unit (M.I.U.).
The MIU takes information (serial electronic data) from a ¡®customer
specific¡¯ set of meteorological sensors. This information is
collated and distributed in a variety of customer configurable
data formats. i.e. for the display on AGI¡¯s range of digital
repeaters , or distribution for a ships fire control system.
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Digital barometer consist of
Air Pressure Sensor, Meteorogical Interface Unit(MIU)
and LCD or Multi Function Colour Repeater (MFCR).
A 10-pin MIL-C-26482 connector shell size having 21 size
16 contacts, is fitted to the sensor. The connector shell
is bonded for RF to the sensor body.
Maximum cable length between MIU and sensor is 250m.
The output is provided to the Meteorogical Interface Unit
for processing and distribution to repeater, display and
other system users. |
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The Barometric Pressure Sensor is accurate, self contained instrument
for measuring atmospheric pressure. The sensor is mounted within
the ship for protection. For sealed ships with an "NBC" capability,
the sensor may be vented to atmosphere using appropriate piping
This specification defines the commercial AGI Meteorological
Interface Unit(MIU) for processing and retransmission of pressure
sensor and other optional sensor data to repeaters and other
ship users of the data.
| LCD Multifunction
Repeater |
The data is displayed in analogue and digital formats. This
is presented on high reliability, transflective liquid crystal
displays with red backlighting, the level of which may be dimmed
to ensure maximum readability in a wide range of ambient lighting
conditions. The repeaters are therefore suitable for use in
situations ranging from direct sunlight to night-time bridge
wing applications. |
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| Air
Pressure Sensor |
Operating Range
: 750 to 1150 mbar
Power Supply : 4.5 to 32 VDC
(15 VDC from MIU)
Interface : RS422
Accuracy : 0.01% Full-Scale
Weight : 0.65 Kg
Dimensions : 125mm x 80mm x 60mm |
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| MIU |
Power Supply : 115/230V, 60Hz,
250VA
Interface : RS232/422
Weight : 20Kg |
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| Repeater |
Viewing Angle : 140˚ Horz.
110˚ vert.
Power Supply : 115/230V, 60-400Hz
or 24VDC 30W
Interface : RS422
Weight : 4.3 Kg |
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