Test Procedure: Low Frequency Range; Table 5-6. Spectrum Accuracy, High Frequency Range - Honeywell Chadwick-Helmuth 8500C Maintenance Manual

NOTE: These frequencies are based on a 580.0 Hz, square wave input.
8500C/C+ Firmware Version: ___________ 8500C/C+ Serial Number: ___________ Date:________

Table 5-6. Spectrum Accuracy, High Frequency Range

True Amp.
Harmonic
(IPS)
1st Max. Allowed:
11.411
(FUND)
Actual:_____ IPS
Min. Allowed:8.761
3rd Max. Allowed:3.804
Actual:_____ IPS
Min. Allowed:2.920
5th Max. Allowed:2.282
Actual:_____ IPS
Min. Allowed:1.752
7th Max. Allowed:1.630
Actual:_____ IPS
Min. Allowed:1.252
9th Max. Allowed:1.268
Actual:_____ IPS
Min. Allowed:0.973
11th
Max. Allowed:1.037
Actual:_____ IPS
Min. Allowed:0.796
13th Max. Allowed:0.878
Actual:_____ IPS
Min. Allowed:0.674
15th Max. Allowed:0.852
Actual:_____ IPS
Min. Allowed:0.519
17th Max. Allowed: 0.752
Actual:_____ IPS
Min. Allowed:0.458
5.5.3.4

Test Procedure: Low Frequency Range

You must allow the 8500C/C+ to warm up for at least 30 minutes prior to running this test
procedure or else test results will be invalid.
a. Turn on spectrum analyzer and set up to view a 134.4 mVrms, 490.0 Hz signal. Use the
following analyzer settings:
Frequency:
A B
2nd Amp. to 1st Amp. to
Left of Peak Left of Peak
31390 RPM 32884 RPM
______ IPS ______ IPS
523.2 Hz 548.1 Hz
101642 Hz 103137 RPM
______ IPS ______ IPS
1694.0 Hz 1718.9 Hz
170400 RPM 171895 RPM
______ IPS ______ IPS
2840.0 Hz 2864.9 Hz
240653 RPM 242148 RPM
______ IPS ______ IPS
4010.9 Hz 4035.8 Hz
310906 RPM 312400 RPM
______ IPS ______ IPS
5181.8 Hz 5206.7 Hz
379664 RPM 381158 RPM
______ IPS ______ IPS
6327.7 Hz 6352.6 Hz
449916 RPM 451411 RPM
______ IPS ______ IPS
7498.6 Hz 7523.5 Hz
518674 RPM 520169 RPM
______ IPS ______ IPS
8644.6 Hz 8669.5 Hz
588927 RPM 590422 RPM
______ IPS ______ IPS
9815.4 Hz 9840.4 Hz
CAUTION
Baseband, Start: 0 Hz, Stop: 1000 Hz
C D
Harmonic 1st Amp. to
Peak Right of Peak
34379 RPM 35874 RPM
______ IPS ______ IPS
573.0 Hz 597.9 Hz
104632 RPM 106126 RPM
______ IPS ______ IPS
1743.9 Hz 1768.8 Hz
173390 RPM 174884 RPM
______ IPS ______ IPS
2889.8 Hz 2914.7 Hz
243642 RPM 245137 RPM
______ IPS ______ IPS
4060.7 Hz 4085.6 Hz
313895 RPM 315390 RPM
______ IPS ______ IPS
5231.6 Hz 5256.5 Hz
382653 RPM 384148 RPM
______ IPS ______ IPS
6377.6 Hz 6402.5 Hz
452906 RPM 454401 RPM
______ IPS ______ IPS
7548.4 Hz 7573.3 Hz
521664 RPM 523158 RPM
______ IPS ______ IPS
8694.4 Hz 8719.3 Hz
591916 RPM 593411 RPM
______ IPS ______ IPS
9865.3 Hz 9890.2 Hz
8500C/8500C+ System Maintenance Manual 5-25
Calibration Tests
E
2nd Amp. to
Right of Peak
37368 RPM
______ IPS
622.8 Hz
107621 RPM
______ IPS
1793.7 Hz
176379 RPM
______ IPS
2939.7 Hz
246632 RPM
______ IPS
4110.5 Hz
316885 RPM
______ IPS
5281.4 Hz
385643 RPM
______ IPS
6427.4 Hz
455895 RPM
______ IPS
7598.3 Hz
524653 RPM
______ IPS
8744.2 Hz
594906 RPM
______ IPS
9915.1 Hz