SM Series LVDT

2.3 mm Diameter

This micro-miniature LVDT is designed for high resolution position measurement in tight places. It is layer wound on metal coil-form
provides excellent stability, while ferromagnetic housing takes care of the electromagnetic and electrostatic shielding.

Several options are available for signal conditioning: digital or analog EL-35 signal conditioners and USB-10 or USB-10-4 digital controllers, manufactured by Singer Instruments & Control.

Different versions of this LVDT can be manufactured by request.

Input voltage. . . . . . . . . .	2.3Vrms max
Input Frequency . . . . . . .	5kHz (nominal)
Linearity deviation error	2.0% F. R. max
Operating temperature range. . . . . . . . . . . . . . . .	-20°C to +70°C
Housing material . . . . . .	Nickel-Iron Alloy.

Dimensions (mm)

Notes
LVDT core is supplied together with welded connecting rod.
Connecting rod is labelled with red point.

Wiring

TYPE	Linear Range	Sensitivity (tested at 5kHz)	Impedance (tested at 5kHz)		Resistance		Length
	mm	V/mm/Vex	Ω		Ω		mm
			Prim.	Sec.	Prim.	Sec.	A	B
SM-1.0A	±1.0	0.07	190	50	115	45	10.0	6.5
SM-1.0B							18.0
SM-2.5A	±2.5	0.044	310	70	170	65	17.5	11.0
SM-2.5B							25.5
SM-5.0A	±5.0	0.044	170	70	90	60	27.5	17.0
SM-5.0B							35.5
SM-7.0A	±7.0	0.029	205	90	130	80	35.0	19.5
SM-7.0B							43.0
SM-8.5A	±8.5	0.02	240	110	165	100	43.0	26.2
SM-8.5B							51.0

How to order
Ordering example: Model number: LVDT SM | 7.0A-3m (supplied with 3 meter long connecting wires).