MetCam Technical Manual
Document P/N A1604870010
7
4
Use
4.1
Installation Prerequisites
A correct installation is crucial for MetCam's effectiveness. Note the following important guidelines:
MetCam has a field of view (FOV) of 68 degrees Horizontal and 23 degrees Vertical
MetCam should be mounted at an elevated position looking downwards towards the monitored area. The minimal
recommended angle is 15 degrees below the horizontal.
The optimal distance to the monitored area is 20-30 meters. The permissible operating range is 10-50 meters.
MetCam FOV should be free of objects which are at a distance of less than 5 meters from it.
MetCam should be mounted to a stable structure free of excessive vibration. Good choices would be a steel
bulkhead, brick wall, concrete post or a rigid steel structure. Avoid flimsy metal structures that may flex, or
wooden structures that may warp.
If MetCam is installed at a location where it is exposed to direct rain/snow fall or sunlight, use of the optional
sun/rain shield is required.
Select the installation location such that the line-of-sight from it, to the monitored area, is free from obstacles.
Since Methane has buoyancy, it is recommended to also have a free line-of-sight to the area above the monitored
area.
Avoid locations where high levels of contaminants will
persistently be blown onto the unit’s optics. Potential
sources of heavy contamination include generator/turbine exhausts, flarestacks, drilling equipment, process
vents/chimneys etc. If sources of heavy contamination cannot be avoided, consider providing good access for
more routine cleaning
Locations where there is a significant likelihood of equipment, personnel or moving objects accidentally knocking
MetCam out of alignment should be avoided. If such locations cannot be avoided, measures including improved
mechanical protection and warning notices should be considered
MetCam is to be connected to a 24 VDC power source. The details of this source are described in
To benefit from its imaging capabilities, MetCam should be connected, via a LAN cable equivalent to CAT5E (or
higher), or via a Wi-Fi connection, to an ONVIF client.
MetCam can be connected with 4-20 mA to the control unit.
Maximal CAT5E cable length is 100 meters.
4.1.1
Electrical Installation Prerequisites
MetCam complies with the EMC requirements. In order to maintain compliance with these standards it is essential that
the electrical installation of MetCam is engineered correctly.
To fully comply with EMC directive and protect against radio frequency interference (RFI) or electromagnetic interference
(EMI), the cable to MetCam must be shielded and MetCam must be grounded. The shield should be grounded at the
MetCam end. All cables to MetCam must be well shielded to comply with EMC requirements.
Electrical installation standards vary for different countries, companies and applications and it is the responsibility of the
installation design authority to determine the applicable standards and ensure compliance with them. When designing
electrical installations for MetCam it is recommend that the installation design authority considers that any earthing regime
employed must avoid earth loops.
MetCam must be either connected to a SELV/PELV system, or directly connected to an apparatus compliant with IEC
60950 series, IEC 610101-1, or equivalent 24 V power supply.
MetCam includes an earthing point, on the bottom side of the enclosure.
