BRUEL & KJAER VIBROCONTROL 8000 - 22.2.5 Verifying Temperature Channels

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Brüel & Kjaer Vibro │ Instruction
VC-8000 MPS
Content
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Measurement Function generator frequency
Phase Trigger (example 3600 rpm)
60 Hz
1X
60 Hz
2X
120 Hz
3X
180 Hz
0.5X
30 Hz
Table 22-2) nX Vector Test Frequencies
NOTE!
Phase measures the lag between the phase trigger edge and the next highest vibration
peak. Function generators define the phase (0 degrees) where the sine wave crosses
the zero axis. Expect a 90 (or 270) degree difference between the function generator
phase and the vector phase. The difference will depend on the Phase Trigger “Notch” or
“Projection” edge trigger setting.
22.2.5 Verifying Temperature Channels
Use a commercial temperature calibrator (such as manufactured by Omega Engineering Inc.) to verify
the TMM. Connect the inputs as described in Section 8.2 and follow the calibrator instructions to set
the input value.
NOTE!
The RTD inputs cannot be verified using digital simulators due to the TMM periodic scan
rate. Use a resistance box to verify RTD channels.