TB 9-4920-453-35
SECTION I
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification. This bulletin provides instructions for the calibration of Vibration
Monitoring Kit, Consolidated Electrodynamics, Type 1-117. The manufacturer's manual and TM 55-
4920-243-15 were used as the prime data source in compiling these instructions. The equipment being
calibrated will be referred to as the TI (test instrument) throughout this bulletin.
a. Model Variations . None.
DC and low frequency technique.
all levels are prescribed by TB 750-25.
calibration are listed in table 1.
Test instrument parameters
Performance specifications
Input requirement
115 V 10%; 50, 60 or 400 Hz; 30 W
Displacement measurement normal
Range: 50 to 1000 Hz
Accuracy: 4% (without filter input)
sensitivity range (DX1) frequency response
Sensitivity
0.005-in. p-p displacement for FS indication
(maximum attenuation)
Displacement measurement high sensitivity
Range: 50 to 100 Hz
range (DX0.1) frequency response
Accuracy: 4% (without filter input)
Sensitivity
0.0005-in. p-p displacement for FS indication
(unattenuated)
Velocity measurement, high sensitivity
Range: 5 to 5000 Hz
range (VX0.1) frequency response
Accuracy: 3% (without filter input)
Sensitivity
FS indication for any input from 25 to 180 mV
Linearity
3% of FS at all frequencies
Input line-voltage change
Maximum input line voltage change will cause
less than 2% change in amplifier gain
NOTE
Calibration of vibration transducers cannot be accomplished
at the transfer level. Transducers are calibrated in
accordance with instructions provided in TB 43-180.
2
CHANGE 1
