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The use of a single, screened/shielded cable for each field device ensures good
•
screening/shielding and reduces crosstalk.
2.12.2 Field Cabling
•
The entire length of the field cabling connected to a unit should be screened/shielded.
The screen/shield should be connected to a low noise instrument earth at one end.
•
The screens/shields of field cabling must not be connected in a manner that creates
earth loops or that will result in the screens/shields carrying large currents from heavy
plants or equipment.
2.12.3 Interference and noise
Electrical equipment connected to the system should comply with applicable national or
•
international EMC standards.
Ideally, the 24 V supply reaching units should be free from large transients, fluctuations,
•
or high-frequency noise.
,To reduce the likelihood of radio frequency interference affecting the operation of units
•
it is recommended that neither units nor their cabling is installed close to the antennae
of high-powered radio, radar or satellite communication equipment.
3 Configuration options
Some functions of the detector can be configured using an RS-485 modem connected to a computer
with the "FGD communicator" software. For details of how to download the software please contact
technical support via email at info@gastech.com and support@fg-detection.com
These configuration options are listed in the following table along with their factory default
values.
For more information & Technical support:
F-Guard UV-IR User Manual
info@gastech.com
and
support@fg-detection.com
Doc. No. F110V0020.06
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