Chapter 4. Operation

WARNING: Before operating the system, the operator must become familiar with the operating safety information presented in Chapter 1, “Safety”.

System Operation ControlsThe lamp system is operated from the controls on the front of the power supply.NOTE: Ambient system operating temperature is 0 to 45°C.

Lamp Control

At STANDBY, power (115 VAC) is applied to the magnetron filaments without energizing the bulb. All interlocks and controls will continue to operate in STANDBY. An external blower can be triggered through a connection to output relay K1.

Pressing the LAMP ON button energizes the lamp to its full power level after a STANDBY delay and an additional “full power” delay. If after 8 seconds in the ON position the bulb has not successfully ignited, the lamp will shut down. Check the LED display on the power supply; it will indicate the probable source of the problem.

A “LAMP OUT” is a result of many different causes. The following are some reasons that may be a source of this fault condition:

Successive short cyclesOperation at improper air pressureOperation at continuous reduced power level with improper air pressureImproper initial ignition of the system

Poor distribution of the fill material inside the bulb as a result of shipping and handling

Installation, Operation, and Maintenance Manual # 509252 Rev R

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