MODEL 4020 & 4030 ACCELEROMETER
TE CONNECTIVITY SENSORS
/// MODEL 4020 & 4030 ACCELEROMETER 05/2016
Page 5
CABLE ROUTING
The model 4020 & 4030 accelerometers incorporate a PVC jacketed cable with an integral shield. The cable assembly should be properly
secured at regular intervals during testing. It is recommended to use clamps, wax, or tape to secure the cable to minimize cable motion that
can add noise to the output signal. The initial attachment should be within two to three inches of the accelerometer.
Avoid routing cables near high-voltage wires and also ground the shield at the signal conditioner to minimize ground loops.
SELF-TEST OPERATION
The model 4020 & 4030 accelerometers incorporate a self-test feature. This feature is activated by grounding the self-test lead (gray). The
corresponding shift in bias output is shown in table below.
Range (g)
±2
±6
Self Test Output Change (mV)
X = +210 ±90
X = +70 ±30
Y = -210 ±90
Y = -70 ±30
Z = -340 ±190
Z = -110 ±65
The self-test bias shift takes place no matter the orientation of the accelerometer. Sensitivity is unaffected. For normal operation the gray lead
floats and is not connected.
NOISE FLOOR SPECIFICATIONS
The model 4020 & 4030 accelerometers incorporate a LP filtered output for a high output signal. The noise specifications for this
accelerometer are detailed in table below.
FULL SCALE
RATING
(g-pk)
SENSITIVITY
(mV/g)
±5% AMPL
PASSBAND
(Hz)
PASSBAND
NOISE
(µVrms)
SPECTRAL NOISE
(µg-
rms/√Hz)
DYNAMIC RANGE
(dB)
2
1000
200
600
51
67
6
333
200
240
42
75
