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Lamp Voltage
Check
Lamp Voltage
Adjustment
43iQ Instruction Manual
The instrument is equipped with a lamp voltage control circuit, which
automatically corrects for degradation of the flash lamp. However, after
several years of use, the lamp may have degraded to the point that is being
driven with the maximum voltage that the power supply can deliver.
There are two methods available that allows the operator to check the lamp
voltage. The first is via the Measurements Settings>Advanced Measurement
Settings>Optical Bench Settings>Continue to Detector Gain Settings
Screen. The current Lamp Voltage and Lamp Intensity are displayed.
The second method is via Settings>Health Check>Status and Alarms>SO2
Bench screen. The current Lamp Voltage and Lamp Intensity are displayed
along with the upper and lower alarm limits.
For detailed information about this screen, refer to the "Operation"
chapter. For more information about replacing the lamp or adjusting the
lamp voltage control circuit, see the "Servicing" chapter.
The auto calibration of the detector will automatically adjust the lamp
voltage to 800 volts (±5 Volts). This is done so by adjusting the gain on the
detector to optimize the illumination of the lamp.
Use the following procedure to adjust the lamp voltage.
1. From the Home screen choose Settings>Measurement
Settings>Advanced Measurement Settings>Optical Bench
Settings>Continue To Detector Gain Settings Screen.
2. Under the Detector Gain – Auto Cal, Press "Start" to initiate the auto
calibration sequence.
Thermo Scientific
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