Excellence in Linear and Angular Displacement
and Linear Velocity Transducers

Series 280

Economy AC LVDTs

  • Ranges from ±0.05” to 2.0”
  • Non-linearity ≤ 0.4%
  • Large Core to Bore Clearance
  • Low Cost

The Series 280 AC LVDTs are designed and manufactured to provide an accurate, yet economical, means of measuring linear displacement. The transducers are available in working ranges of 0.1 to 2.0 inches. Maximum non-linearity is specified as ± 0.4% of full scale.

Specifications - Electrical

MODEL
LINEAR RANGE
±Inches
(mm)
REFERENCE FREQUENCY
SENSITIVITY
V/in./V 
INPUT IMPEDANCE Ohms
OUTPUT IMPEDANCE
PHASE ANGLE UNCOMPENSATED
FREQUENCY FOR ZERO PHASE SHIFT
MAXIMUM
NON-LINEARITY
MAXIUM EXCITATION
0280-0000
0.050
(1.27)
1.0 KHz
4.5
71
935
1.6 KHz
±0.4%
Full Scale
1.0 V.A.
0281-0000
0.100
(2.54)
1.0 KHz
3.2
70
342
1.4 KHz
0282-0000
0.250
(6.35)
2.4 KHz
2.9
46
160
25°
17 KHz
0283-0000
0.500
(12.7)
2.4 KHz
1.8
107
265
15°
10 KHz
0284-0000
1.00
(25.4)
2.4 KHz
0.95
100
134
9.5°
7.8 KHz

Notes:

  1. Electrical specifications are based on energizing the primary coil with the specified excitation frequency.
  2. Nominal values are given for sensitivity.
  3. Operating Temperature -50°F to +250°F (-46°C to +121°C)
 

Specifications - Mechanical

MODELHOUSING LENGTH A Inches (mm)CORE LENGTH B Inches (mm)ELECTRICAL CENTER C Inches (mm)INNER SLEEVE MATERIALTOTAL NET WEIGHT W/0 CORE GramsCORE NET WEIGHT GramsCORE PART NUMBERLEAD LENGTH, GAUGE
0280-00001.63 (41.4)1.00 (25.4)0.63 (16.0)PHENOLIC405.4C005-00467" AWG #26
0281-00001.94 (49.3)1.19 (30.2)0.78 (19.8)PHENOLIC486.4C005-00457" AWG #26
0282-00003.31 (84.1)1.25 (31.8)1.47 (37.3)PHENOLIC677C005-00447" AWG #26
0283-00004.88 (124)2.00 (50.8)2.25 (57.2)PHENOLIC10512.1C005-00377" AWG #26
0284-00006.88 (175)3.00 (76.2)3.25 (82.6)PHENOLIC12018.4C005-00387" AWG #26

Series 230 LVDT

Component Material
CASEIron-nickel alloy
INNER DIAMETERPheonolic
END SEALSEpoxy
LEADS#30 Awg teflon insulated copper
COREIron-nickel alloy

1000-0014 Oscillator/Demodulator

ComponentMaterial
THREADED INSERTSAluminum
TERMINAL STRIPSPolyamid and nickel Plated phosphor bronze

Dimensional Diagram

Schematic