Daytronic Corporation - AC "LEM" Sealed LVDT Series

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AC-Operated, Long-Stroke
Spring-Extended Armature

"LEM" Sealed LVDT Series (AC)

These units are ideal for industrial use in most fluids and gases. The standard cable connection is by means of a submersible connector, but several other optional versions are available, providing different cable lengths and temperature/pressure ratings (contact the factory for details).

General Specifications are given below.

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AC "LEM" Series

LVDT Model	Nom. Linear Range (in. / mm)	Dimensions (in. / mm)				Body Weight	Nom. Sensitivity (V/V at f.s.)
LVDT Model	Nom. Linear Range (in. / mm)	"L"	"X"	"A"	"D1"	Body Weight	Nom. Sensitivity (V/V at f.s.)
DS1000LEM	ą0.5 ą12.5	6.0 153	1.5 38	3.3 84	0.813 20.6	6.5 oz. 184 g	0.7
DS2000LEM	ą1 ą25	7.1 181	2.5 63			8 oz. 227 g	0.9
DS4000LEM	ą2 ą50	12.0 304	3.0 76			14 oz 398 g	1.5
DS6000LEM	ą3 ą75	16.5 420	4.5 114			1.06 lb. 483 g	1.5

General AC "LEM" Specifications [Top ] (See also the statement on LVDT specifications)
Supply Requirements	0.5 VAC to 7 VAC (RMS), 2 to 10 kHz sinusoidal
Calibrated Supply (Excitation)	5 VAC (RMS) at 5 kHz sinusoidal
Armature	SPRING-EXTENDED
Linearity (% error of full scale, worst case)	ą0.5%*
Phase Shift	Typically 10° to 15° at 5-VAC, 5-kHz excitation
Output Load (optimum)	100 kΩ
Temperature Coefficient (Zero and Span)	ą0.01% of full scale/°C (ą0.005% of full scale/°F)
Operating Temperature Range (transducer)**	-51° C to +125° C (-60° F to +257° F)
Operating Pressure	145 psi, maximum***
Electrical Termination	Connector with 16 ft. (5 m) lead (options available)
* ą0.25% and ą0.1% linearity are optional on some models (contact the factory for details). Reduced to -40° C to +90° C (-40° F to +194° F) by standard connector. * Ratings up to 3000 psi available with cable options (contact the factory for details).

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