Calibration Tests
8500C/8500C+ System Maintenance Manual
5-19
s.
Press
SETUP
key.
t.
Select
INPUT
field with arrow keys.
u.
Key in Velocimeter channel number with numeric keys.
v.
Select
PICKUP
field with arrow keys.
w.
Press
CHANGE
soft key to select magnetic pickup channel.
x.
Press
ENTER
soft key.
y.
Monitor signal generator output with spectrum analyzer with marker at 100 Hz. Adjust
signal generator output channel connected to Velocimeter input until amplitude is 13.44 +/
- 0.05 mV RMS.
z.
Wait 10 seconds.
aa.
Press
START
key.
ab.
Verify that 8500C/C+ display indicates:
FREQUENCY: 100.0 +/- 0.1 HZ
VIB LEVEL: 1.000 +0.04/-0.05 IPS
PHASE ANGLE: 180° +/- 3°
ac.
Press
STOP
key.
Table 5-4. 8520C Velocimeter and Magnetic Pickup Amplitude, Frequency, and
Phase Accuracy Channel Combinations
Velocimeter
Channel
(Cable 8278)
Magnetic Pickup
Channel
(Cable 10502)
2
A
3
A
4
B
5
B
6
B
7
C
8
C
9
C
10
D
11
D
12
D
