Post the exact model number of the sensor you are using (SDVH20-50B is not described in the data sheet you posted), together with a wiring diagram showing how you are testing it
Exact information on label of the LVDT:
Model: SDVH20-50B
Power: 15-28v DC
output: 0-10V
range:0-50 mm
Wiring that i use to measure output by multimeter:
