9457 Industrial Computer
3-16
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Prevent condensation by installing a thermostat-controlled heater or air conditioner,
if needed.
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Avoid obstructing the air flow to allow for maximum cooling.
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Place any fans or blowers close to the heat generating devices. If using a fan, make
sure that outside air is not brought inside the enclosure unless a fabric or other reli-
able filter is also used. This filtration prevents conductive particles or other harmful
contaminants from entering the enclosure.
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Do not select a location near equipment that generates excessive electromagnetic in-
terference (EMI) or radio frequency interface (RFI) (equipment such as high power
welding machines, induction heating equipment, and large motor starters).
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Place incoming power lines (such as isolation or constant voltage transformers, local
power disconnects, and surge suppressors) away from the 9457. The proper location
of incoming line devices keeps power wire runs as short as possible, and minimizes
electrical noise transmitted to the 9457.
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Make sure the location does not exceed the 9457’s temperature specifications.
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Avoid overloading the supply circuit. The 9457 is rated at 115/230 VAC at 6.3 Amps.
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Mount the monitor unit to allow for easy access to its rear components if you antici-
pate making frequent adjustments to the display.
Note
The display may be affected by geomagnetic fields. Some typical effects of magnetic
fields are color impurity (blotchy colors), distorted screens, etc. In some cases, purity
problems may be correctable by turning off the unit for 30 minutes and reapplying
power. In other cases degaussing may be required. Contact Xycom’s Technical Sup-
port Department for further information at 1-800-289-9266, x 450.
System Power
It is a good idea to use isolation transformers on the incoming AC power line to the 9457. An
isolation transformer is especially desirable in cases in which heavy equipment is likely to intro-
duce noise onto the AC line. The isolation transformer can also serve as a step-down transformer
to reduce the incoming line voltage to a desired level. The transformer should have a sufficient
power rating (units of volt-amperes) to supply the load adequately.
Proper grounding is essential to all safe electrical installations. Refer to the relevant national,
state/provincial and local electrical codes, which provide data such as the size and types of con-
ductors, color codes and connections necessary for safe grounding of electrical components. The
code specifies that a grounding path must be permanent (no solder), continuous, and able to safely
conduct the ground-fault current in the system with minimal impedance. The following practices
should be observed:
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Separate ground wires from power wires at the point of entry to the enclosure. To
minimize the ground wire length within the enclosure, locate the ground reference
point near the point of entry for the plant power supply.
