IEC 30 Series - Page 34

SECTION 4
-,
Table 4-2. Calibration and Performance Checks (Continued)
Step Calibration Control Setting
Test
Equipment
(Mode)
Procedure
*
8.2 Minimum Pulse
FREQ Mult @ 1M
Dial @ .5
1.
Slowly
rotate the
vernier for minimum
duration pulses.
2.
Pulse duration meas-
ured shall be less than
100 ±35 ns @ 50% of
amplitude level.
*
9.0
OUTPUT LIMIT
CIRCUITRY
(F32-34)
FREQ Mult to lK
Dial to 1
DVM-DC
1.
Connect DVM to output
BNC
via unterminated
WAVEFORM to DC
coax.
*
OFFSET to ON
Position
LEVE L to CW Stop
2.
Adjust OFFSET for
+2.5v. Limit lamp
should glow.
Adjust
OFFSET to -2. 5v.
Lamp should glow.
3.
Turn off OFFSET.
Lamp should go out.
10.0
VCG (F32-34)
FREQ Mult @ lK
Dial @ CW stop
Counter-
Frequency
1. Apply 10.0 ±. 01v to
VCG BNC.
WAVEFORM
(g) Sine
Voltage
Source
2. Connect SYNC OUT BNC
to counter via 50-ohm
terminated coax.
*
3. Frequency read shall be
3 kHz (+. 18 - . 33kHz).
11. 0
START/STOP
(F33/F34)
FREQ Mult @ lK DVM-DC
MODE
@ TRIG
AMPLITUDE @ 10 v
p-p
1.
2.
Adjust R228 for 0 ±60
mv dc.
Rotate the FREQ dial
between O. 3 and 3. O.
Observe a shift in DVM
reading of less than
30 mv dc.
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