Table 5-4. 8520C Velocimeter And Magnetic Pickup Amplitude, Frequency, And Phase - Honeywell Chadwick-Helmuth 8500C Maintenance Manual

Table 5-4. 8520C Velocimeter and Magnetic Pickup Amplitude, Frequency, and
Phase Accuracy Channel Combinations
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.
Velocimeter
Channel
(Cable 8278)
2
3
4
5
6
7
8
9
10
11
12
Magnetic Pickup
Channel
(Cable 10502)
A
A
B
B
B
C
C
C
D
D
D
8500C/8500C+ System Maintenance Manual 5-19
Calibration Tests