HP E8402A, User And Service Manual, Page: 196 / 249

198 Calibrating and Verifying Performance
Chapter 4
CALibration Subsystem
The calibration subsystem controls the calibration of the mainframe’s monitoring
function.
Subsystem
Syntax
:CALibration
[:ALL]?
Complete calibration of enhanced monitor.
:TEMPerature? Calibrates temperature monitoring function
:VALue
:TEMPerature <
value > Sets the calibration temperature.
:TEMPerature? Returns calibration value
:VOLTage
<supply>,<value>
Sets the VXI supply calibration voltage
:VOLTage? <supply> Returns calibration value
:VOLTage? Calibrates voltage monitoring function
CALibration[:ALL]?
CALibration[:ALL]? performs all calibration procedures. Calibration is performed
assuming the mainframe is in these conditions: no VXI modules installed in
mainframe, mainframe at a steady state temperature in a constant temperature
environment (fan switch set to FULL for at least ten minutes). This means that this
command should always be issued through the Enhanced Monitor’s RS-232
interface. Calibrations performed are:
•
Calculate A/D offset and gain for each VXI power supply. Externally
measured voltages previously reported to the enhanced monitor through
CAL:VAL:VOLT are used for these calculations.
•
Calculated A/D offset and gain for each temperature sensor. Externally
measured temperatures previously reported to the enhanced monitor through
CAL:VAL:TEMP are used for these calculations. Flag any sensor varying
more than ±2 degree off expected.
Returned Data
Type Range Description
int16 0-32767 +0 indicates a satisfactory calibration.
+1057 to 1069: bad front sensor in slot [
result-1057]
+1070 to 1082: bad middle sensor in slot [ result-1070]
+1083 to 1095: bad rear sensor in slot [ result-1083]
+1096: bad voltage gain calculation on +5V Supply
+1097: bad voltage gain calculation on +12V Supply
+1098: bad voltage gain calculation on -12V Supply
+1099: bad voltage gain calculation on +24V Supply
+1100: bad voltage gain calculation on -24V Supply
+1101: bad voltage gain calculation on -5.2V Supply
+1102: bad voltage gain calculation on -2V Supply