Philips SCOPEMETER PM93 Service Manual page 116

CALIBRATION ADJUSTMENT PROCEDURE 5 - 17
Table 5.3 Calibration signals for step M4 ... M7
Calibration Step Number Calibration Voltage
M4
300 mV DC
M5 3V DC
M6 30V DC
M7 300V DC
WARNING: After you have performed calibration M7, deactivate the Fluke 51008 to remove
the 300V DC. Always set the Fluke 51008 to 300 mV DC before touching the
connection cables!
M8/9. External input, 300 mV/3V range: gain calibration
Purpose: calibration of the external input gain in the 300 mV and 3V ranges.
Calibration equipment:
Fluke 51 OOB Calibrator
Calibration setup:
Fluke 51008
Procedure:
mV DC
mV
(red)
+300.0
S
0 0 0 0 0
Oc:::::Jc:::::JO
0 0 0 0 0
0 0 0
DDBDD
0 0 0 0 0
o
000
ScopeMeter
A - Apply 300 mV DC to the banana connectors.
B - Press the READY softkey.
C - Apply 3V DC to the banana connectors.
D - Press the READY softkey.