Sunnex PF Series (MRI) - Manual (Page 9)

Sunnex PF Series MRI Service & Installation Manual
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accommodate the use of an RF filter. RF filter connectors will be different
based on which RF filter is used. If your facility construction requires
alterations beyond these guidelines, please contact Sunnex Technical
Support.
WHICH RF FILTER TO USE
PF MRI LIGHT specifications:
Power Supply:
120V - 60Hz and 230V - 50Hz
Nominal Effect: 120VAC, 60Hz, 1x50W - 1.5A
230VAC, 50Hz, 1x50W - 1.0A
Voltage output: 14V DC
Current: 3.6 Amp. DC in secondary
Sunnex does not advise any specific filter but the specifications of the PF
MRI product must be carefully considered when selecting a filter. Following
are recommendations of filters that can be used: Spectrum Control part# 56-
705-003 (this is a 9-pin D sub connector RF filter) or equivalent should be
used. Some manufacturers that make RF filters are: Amphenol Canada,
Spectrum Control, ERNI, Conec. The voltage drop over the filter must be
minimal to ensure proper performance of the light fixture. The guidelines and
requirements of your MRI facility must be considered as well. Consult with
your MRI facility manager or the RF panel support technician if uncertain.
1. Mount transformer box securely to a structural member in the area close
to the RF panel in the adjacent equipment room using 1/4 X 2” bolts
(Four holes are provided on the base plate of transformer box). The
transformer box should not be stacked with other power supply units.
2. It is recommended not to mount the transformer box on wall.
3. Velcro is provided on the base plate of the transformer box and a rope
and snap-on hook is provided on the transformer box to assist in proper
installation. (Velcro can be used to secure the transformer box to a flat
surface and snap-on hook is provided to emphasize that the transformer
box needs to be location-constrained and it can be used to secure the
transformer box).
4. Select appropriate mating D sub connectors for RF filter. Cut the cord on
secondary side of the light, install (solder) two wires of this cord (black =
hot, white = neutral) to the selected D sub connector and install this
connector to the RF filter. (CUTTING THE CORD IN SUCH A WAY