User manual

MetPak Doc No 1575-PS-0001 Issue 02 CN 4240 March 2006
6 INSTALLATION
Do NOT remove the black “rubber” transducer caps. Warranty is void if the coloured security seal is damaged or
removed.
6.1 Installation Guidelines
The MetPak has been designed to meet and exceed the stringent standards listed in its specification.
As with any sophisticated electronics, good engineering practice should be followed to ensure correct operation.
• Always check the installation to ensure the MetPak is not affected by other equipment operating locally, which
may not conform to current standards, e.g. radio/radar transmitters, boat engines, generators etc.
Guidelines –
o Avoid mounting in the plane of any radar scanner – a vertical separation of at least 2m should be
achieved.
o Radio transmitting antennas, the following minimum separations (all round) are suggested
 VHF IMM – 1m
 MF/HF – 5m
 Satcom – 5m (avoid likely lines of sight)
• Use cables recommended by Gill. If cables are cut and re-connected incorrectly (perhaps in a junction box) then
EMC performance may be compromised if cable screen integrity is not maintained.
• Earth loops should not be created – wire the system in accordance with the installation guidelines.
• Ensure the power supply operates to the MetPak specification at all times.
Avoid turbulence caused by surrounding structures that will affect the accuracy of the sensors such as trees, masts and
buildings. The WMO make the following recommendations:
• The standard exposure of wind instruments over level open terrain is 10m above the ground. Open terrain is
defined as an area where the distance between the sensor and any obstruction is at least 10 times the height of the
obstruction.
6.2 Bench system test
Note : Prior to physically mounting the MetPak in its final location, we strongly recommend that a
bench system test is carried out to confirm the system is configured correctly, is fully functional and
electrically compatible with the selected host system and cabling (preferably utilising the final cable
length). The required data format, units, output rate, and other options should also all be set up at
this stage.
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