Fluke 93 - Page 106

5-10
CALIBRATION ADJUSTMENT PROCEDURE
S8/9. Pulse reeponee
of the
*1007*1000
attenuation (fine adjustments)
Purpose: optimal pulse response of the >100, *1000 attenuation
circuit.
Calibration equipment:
Tektronix PG 506 Square Wave Calibration Generator
Calibration setup:
See calibration setup
H3.
Proce<3ure:
A
*
Apply
a square wave with a frequency ot 1 kHz, amplitude 20V peak-to-peak (between OV and
+20V) to both channels
A and B. Set the generator to the position "STD AMPL".
B
•
Press the READ/ softkey.
C
-
Apply
a square wave with a frequency of 1 kHz. amplitude 50V peak-to-peak
(between
OV and -fSOV) to both channels A and B. Set
the
generator
to the
position -STD AMPL*.
D
-
Press
the READY softkey.
SI 0/11/1 2/1 3/1 4/1
S/1 6/17
Gain
for
5 mV, 10 mV, 20 mV, 50 mV, 100 mV, 200 mV, 2V, 20V
Purpose: correction
of
the
system gain (from BNC to microprocessor) In
attenuator settings:
5 mV, 1 0 mV, 20 mV, 50 mV, 100 mV, 200 mV, 2V,
20V.
Calibration
equipment:
Tektronix
PQ 506 Square Wave Calibration Generator
Calibration setup:
See calibration seti^ H3.
Procedure:
A
•
Apply
a
square wave
with a
frequency
ot 1 kHz, amplitude 20 mV peak-to-peak to both channels
A
and B.
Set the generator to the position "STD AMPL".
B
-
Press the READY softkey.
C
•
Change
the Input voltage
according
to table 5.2.
After each calibration press
the READY softkey. Use the adjust/sdect keys to advance/go back
in
the list.
NOTE: These steps calibrate both channel A and B at the same t/me.