To keep the temperature in range, the cooling air at the base of the system must not exceed the maximum temperature specification (see pg. 1-4).
Allocate proper spacing between internal components installed in the enclosure.
When the air temperature is higher than the specified maximum in the enclosure, use a fan or air conditioner to lower the temperature.
Location and Enclosure
• Place the unit to allow easy access to the system ports.
• Account for the unit dimensions when selecting an installation location or enclosure
• You can maintain the NEMA 4 seal by mounting the unit in an approved enclosure that has a 14 gauge (0.075"/1.9 mm thick) steel or (0.125"/3.2 mm thick) aluminum front face.
• Place the unit at a comfortable working level.
• Mount the unit in an upright position, if possible.
• Consider locations of accessories such as AC power outlets and lighting (interior lighting and windows) for installation and maintenance convenience.
• Prevent condensation by installing a thermostat-controlled heater or air conditioner.
• Avoid obstructing the airflow to allow for maximum cooling.
• 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 reliable filter is used.
This filtration prevents conductive particles or other harmful contaminants from entering the enclosure.
• Do not select a location near equipment that generates excessive electromagnetic interference (EMI) or radio frequency interface (RFI) (equipment such as high-power welding machines, induction heating equipment, and large motor starters).
• Do not place incoming power line devices (such as isolation or constant voltage transformers, local power disconnects, and surge suppressers) near the system.
The proper location of incoming line devices keeps power wire runs as short as possible and minimizes electrical noise transmitted to the unit.
• Make sure the location does not exceed the unit's shock, vibration, and temperature specifications
• Install the unit so it does not cause a hazard from uneven mechanical loading.
• Incorporate a readily accessible disconnect device in the fixed wiring on permanently connected equipment.
• Avoid overloading the supply circuit
Back Light Replacement Procedure
After 50,000 hours of use, the two lamps used for LCD back lighting may become dim or burn out. You may return the monitor to Xycom for lamp replacement or you can order new lamps and follow the procedure below to install them.
You can perform the lamp replacement procedure without removing the monitor from the NEMA enclosure where it is mounted, but you should do this only in a clean environment.
Otherwise, the procedure is better performed at a service bench.
1. TURN THE MONITOR POWER OFF AND DISCONNECT THE LINE CORD
2. Loosen the four thumbscrews that hold the back of the monitor on.
3. Separate the two halves of the monitor. If the unit is equipped with a touchscreen, you will have to disconnect its cable.
4. The lamps are mounted in small plastic carriers that slide in the right side of the LCD display at the top and bottom edges.
5. Note their orientation and then unplug the two sets of lamp wires (3" pink and white silicone wires) from the nearby inverter.
6. Look in the hole where the lamp is presently installed and note the small black locking tab on the front side of each hole. With a small slotted screwdriver, depress the tab while carefully pulling on the wires and slide the lamps outward.
Discard the old lamps.4-1 VGA Input Connector Pin Out
7. Carefully slide the new lamps fully into place noting the top lamp has a small triangle molded in the end where the wires protrude. Similar triangles a stamped in the LCD sheet metal near the top hole.
8. Reconnect the lamp wires to the inverter. These are keyed connectors permitting insertion in only one orientation.
9. You may now want to clean the LCD and the inside of the monitor window or touchscreen with a slightly damp soft cloth.
10. Carefully reunite the two monitor halves remembering to reconnect the touchscreen cable if the unit is so equipped.
11. The lamp replacement procedure is now complete.
