General Monitors TA402A, Инструкция по эксплуатации

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3.4 Detector Location
Considerations
There are no standard rules for detector
placement since the optimum location is
different for each application. The customer
must evaluate conditions at the detector site
in order to make this determination.
Gen erally:
n
The flame detector should be easily
accessible for optical checks. Ensure
that sufficient clearance exists to allow
the use of field devices such as the Air
Purge Guard.
n The flame detector head should always
be pointing at a slight downward angle to
prevent build up of dust and particulate
matter on the window(s). Remember
that flame detectors are optical devices.
n The flame detector should be located in
areas where fires may be likely to occur,
if their presence is dangerous.
n Multiple flame detectors should be
positioned such that their vertical and
horizontal fields of view overlap, to
ensure adequate coverage.
3.5 Applying Power
Zero Two Series Modules do not have an
ON/OFF power switch. Each module in the
Zero Two Series operates from 24 Vdc.
Power requirements will vary according to
the number and type of modules in the
system, as well as the number and type of
field devices.
Figure 11 indicates where the power
connections for the chassis are made.
12
Installation
General Monitors
NOTE: if the application of power does
not turn ON the unit, check fuse F1 on
the control board.
Fig ure 11