Omega Products LD300-100 User Manual

J-18

DISPLACEMENT

The LD300 Series provides our longest stroke length—up to ±300 mm (12")—in accordance with the linear variable differential transformer principle. These AC AVDTs are highly accurate.

Special winding techniques ensure excellent linearity. The components are then packaged in a rugged housing and the transformer core is fitted with an extension rod and

very-low-friction nylon bearings that act as guides. The transducer features a spring-return armature.

With their long life, infinite resolution, versatility, and excellent repeatability, these units are suitable for many demanding industrial applications.

SPECIFICATIONS

Linearity: 0.25% FS Sensitivity: (mV/V/mm) see chart on

next page (actual output supplied with each unit)

Excitation: 1 to 10 Vrms Excitation Frequency: 1 to 10 kHz Energizing Current:

See chart on next page

Frequency Response: 2 ms Zero Offset: 0.5% FS Thermal Effect:

Zero Sensitivity: 0.008%/°C,

0.005%/°C

Compensated Temperature Range:

-40 to 100°C (-40 to 212°F)

Operating Temperature Range:

-40 to 100°C (-40 to 212°F) Electrical Connection: 2.7 m (9')

shielded cable Calibration: Calibrated at 5 V, 5 kHz

with 100K load at 20°C (68°F)

Mechanical

Threaded Core: LD300-15 (M3);

LD300-25, -50 (M4); LD300-100,

-150, -250, -300 (M5)

Core Material: Ni/Fe—Radio Metal 50 Case Material: 400 Series SS Weight: See chart on next page Electrical Connections:

Red and Blue: Excitation (AC) White: Signal Green: Signal ground Red and White: In phase for

inward displacement

⻬ Rugged Stainless

Steel Case

⻬ LVDT—Infinite

Resolution

⻬ 0.25% Linearity ⻬ Spring-Loaded Armature ⻬ Works with Standard

AC LVDT Signal Conditioning Modules

HIGH-ACCURACY AC LONG-STROKE DISPLACEMENT TRANSDUCERS

LD300-100, $765, shown smaller than actual size.

LDX-3A. signal conditioner, $480. See page J-32.

LD300 Series

±15 to ±300 mm (±0.6 to ±12")

480

Starts at

LD300-300, $1125, shown smaller than actual size.

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To Order

(Specify Model Number)

LINEAR STROKE

MODEL NO. mm (in) PRICE COMPATIBLE INSTRUMENTS*

LD300-15 ±15 (0.6) $480 DP-LVDT, LDX-2, LDX-3A, LDX-4 LD300-25 ±25 (1.0) 485 DP-LVDT, LDX-2, LDX-3A, LDX-4 LD300-50 ±50 (2.0) 630 DP-LVDT, LDX-2, LDX-3A, LDX-4 LD300-100 ±100 (4.0) 765 DP-LVDT, LDX-2, LDX-3A, LDX-4 LD300-150 ±150 (6.0) 900 DP-LVDT, LDX-3A, LDX-4 LD300-250 ±250 (10.0) 990 DP-LVDT, LDX-2, LDX-3A, LDX-4 LD300-300 ±300 (12.0) 1125 DP-LVDT, LDX-3A, LDX-4

MAXIMUM WEIGHT

STROKE BODY/ CORE SPRING SENSITIVITY ENERGIZING OUTPUT I/O

MODEL NO. mm (in) LEADS ASSEMBLY RATE FORCE* mV/V/mm CURRENT IMPED. PHASE

LD300-15 ±22 (.886) 60 g 10 g 3.30 g/mm 110 34.0 6 mA 220 Ω 7° LD300-25 ±35 (1.378) 96 g 18 g 2.34 g/mm 150 20.0 4 mA 210 Ω 9° LD300-50 ±62 (2.441) 170 g 25 g 1.95 g/mm 185 9.3 4 mA 160 Ω 10° LD300-100 ±125 (4.921) 600 g 54 g 1.19 g/mm 120 5.0 6 mA 160 Ω 7° LD300-150 ±178 (7.007) 900 g 78 g 1.00 g/mm 120 3.5 5 mA 150 Ω 7° LD300-250 ±279 (10.884) 1300 g 106 g 2.1 6 mA 110 Ω 5° LD-300-300 ±330 (12.992) 1600 g 122 g 1.7 9 mA 90 Ω 2°

CANNOT BE SPRING LOADED

* At electrical zero, in grams.

LINEAR STROKE DIMENSIONS: mm (in) AT ELECTRICAL ZERO MODEL NO. mm (in) A B C D E F G

LD300-15 ±15 (0.6)

45 (1.76) 97 (3.78) 20.6 (0.78) 3.17 (0.12) 19 (0.74) M3 3.5 (0.14)

LD300-25 ±25 (1.0) 60 (2.34) 156 (6.08) 20.6 (0.78) 4.0 (0.16) 19 (0.74) M4 3.5 (0.14) LD300-50 ±50 (2.0) 85 (3.32) 280 (10.92) 20.6 (0.78) 4.0 (0.16) 19 (0.74) M4 3.5 (0.14) LD300-100 ±100 (4.0) 145 (5.66) 450 (17.55) 20.6 (0.78) 4.75 (0.19) 25 (0.98) M5 4.5 (0.18) LD300-150 ±150 (6.0) 197 (7.68) 552 (21.53) 19 (0.74) 4.75 (0.19) 25 (0.98) M5 4.5 (0.18) LD300-250 ±250 (10.0) 298 (11.62) 755 (29.45) 19 (0.74) 4.75 (0.19) 25 (0.98) M5 4.5 (0.18) LD300-300 ±300 (12.0) 349 (13.61) 857 (33.42) 19 (0.74) 4.75 (0.19) 25 (0.98) M5 4.5 (0.18)

AC-POWERED LVDT TRANSDUCERS

* See pages J-31 through J-35 for compatible instruments. Comes with complete operator’s manual.

Ordering Example: LD300-100, 100 mm (4.0") stroke LVDT with spring-loaded core, $765.

Dimensions: mm (in)