Specifications

3-16 888-2857-001 5/9/13
WARNING: Disconnect primary power prior to servicing.
Section 3 Operation
Platinum VAX-C Series
hex value by 0x0001 (1 decimal) increments. The double arrows will increase or
decrease the RF DAC hex value by 0x0010 increments (32 decimal).
Due to the delayed update rate of the web browser, the user should not rely on the RF
DAC Value displayed on the GUI to determine if power is being raised real time, as this
can cause undesired overshoots. Instead the user is advised to monitor their power
meter at all times while adjusting the output power.
The ADC value displayed represents the ADC detector reading corresponding to the
calibration type selected. (if calibration type = Factory Forward, the ADC value will
display the system forward power detector.)
Once the correct power is displayed on the external power meter, pressing the Save
button will advance the process to the next calibration point, or will complete the
calibration process. To cancel the calibration process without saving any data, select
Cancel.
NOTE:
Calibration can abort automatically if a fault condition is detected during the cal-
ibration process. If this occurs, an error message will be displayed to the user.
Calibration error conditions are outlined in Table 3-8.
System Calibration is discussed in depth in Section 5.4, Power Calibrations, on page
5-10. Refer to that section for the complete system power calibration procedure.
Table 3-8 Calibration Faults
Fault Explanation
PA Fault Detected There is a PA fault that is currently limiting the maximum available output
power of the transmitter. The fault condition must be cleared before
calibration can continue.
Invalid Detector
Values:
The low and high point ADC values saved are invalid. The ADC values are
considered valid if the following checks are met:
- Both Low and High point ADC values are between 0x000 to 0xFFF
- High point ADC value > Low Point ADC value
- High point ADC value – Low Point ADC value >= 50
Exciter RF Output
Level Fault
The UDC RF Output power level is at or above the UDC Output Power Limit
setting. The fault condition must be cleared before calibration can continue.
Transmitter OFF The transmitter must be turned ON before calibration can continue.