5-14 Chadwick-Helmuth A Business Unit of Honeywell International, Inc.
Chapter 5 - Maintenance And Repair
Figure 5-8. 8500C/C+ Calibration Test Setup
b. Turn on signal generator and set up as follows:
(1) For channel connected to magnetic pickup signal input, set to Frequency = 100.00
+/- 0.01 Hz, Waveform = Square wave, Amplitude = 1 to 2 Vp-p.
(2) For channel connected to Velocimeter input, set to Frequency = 100.0 +/- 0.01 Hz,
Waveform = Sine wave, Amplitude = 19.0 mV pk.
NOTE: Phase shift between magnetic pickup signal and Velocimeter signal must be zero
degrees on the H-P signal generator. For a description of Chadwick-Helmuth phase
measurement convention, refer to Appendix C.
c. Press BALANCE key on 8500C/C+.
d. Press SETUP key.
e. Key in 6000 with numeric keys in BALANCE FREQUENCY field.
f. Select <RPM> on display by pressing right arrow key once.
g. Press CHANGE soft key to select <Hz>.
h. Select <AUTO STOP> field with arrow keys.
i. Press CHANGE soft key to select <MAN STOP>.
j. Select PHASE UNITS field with arrow keys.
F I L E : 8 5 C _ C A L . D R W
Y
B A L A N C E R / A N A L Y Z E R
C H A D W I C K
H E L M U T H
E L M O N T E , C A L I F O R N I A
M O D E L 8 5 0 0 C
D
J
P
B A L A N C E
T R A C K
#
%
:
S P E C T R U M
E
H E L P
L O A D
S T O R E
K
<
Q
>
F
L
R
S T A T U S
S E T U P
-
/
.
P R I N T
A
S H O W / H I D E
B
M O R E / K E Y S
C
S T O P
W
Z
X
S T A R T
1
4
3
6
G
M
S
7
H
2
N
5
8
T
0
V
I
O
9
U
A N N O T A T E
8 5 0 0 C B A L A N C E R / A N A L Y Z E R
S I G N A L I N P U T
( B N C T - C O N N E C T O R )
C O A X
C A B L E 8 2 7 8
C A B L E 1 0 5 0 2
S I G N A L ( S Y N C ) O U T
S I G N A L O U T
C A B L E 8 9 9 8
S I G N A L G E N E R A T O R
H P - 8 9 0 4 A
S P E C T R U M A N A L Y Z E R
H P - 3 5 6 1 A
V E L O C I M E T E R I N P U T
( 6 P I N )
M A G P I C K U P I N P U T
( 4 P I N )
P O W E R S U P P L Y 9 1 0 0 A
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