Wiring Code
RED +
BLUE –
LD630
LD620
5 Vdc OUTPUT LONG STROKE
DISPLACEMENT TRANSDUCERS
LD620 Series
U Less Than 0.2% Linearity
U 5 to 300 mm Travel
Lengths Available
U Rugged 19 mm Dia.
Stainless Steel Body
U Rigid Stainless
Steel Carriers
U Guided Core with
Removable Spring
U IP67 Environmental Rating
U Large Bore-to-Core
Clearance
The LD620 DC output displacement
tranducers have improved IP67rated sealing, coupled with new
polymer guides with rigid carriers.
These transducers are accurate
and reliable, especially in wet and
corrosive conditions.
Output options are either ±5 Vdc
(LD620) or 0 to 10 Vdc (LD621).
An unusually large bore-to-core
clearance is maintained throughout
the range. This makes installation
easier and helps prevent misalignment.
SPECIFICATIONS
Linearity: <0.2% FSO
Excitation Voltage: 10 to 30 Vdc
@ 25 mA maximum
Output: LD620, ±5 Vdc;
LD621, 0 to 10 Vdc
Output Ripple: 0.02% FSO
Bandwidth: 500 Hz (-3 dB)
Storage Temp: -20 to 85°C (-4 to 185°F)
Operating Temp: 0 to 65°C (32 to 149°F)
Sealing: IP67
Vibration (Sinusoidal Frequency):
10 to 50 Hz: 1 to 10 g rms
linear amplitude
50 Hz to 1 kHz: 10 g rms
amplitude
Shock:
Drop Testing: 1 m (3') onto hard surface
Topple Testing: 10 times each end
onto hard surface
Case Material: 300 SS
Cable: PFA, 2 m (6') long
Core Material: Nickel-iron
Wiring Code
RED + EXC
BLUE – EXC
YELLOW + SIG
GREEN - SIG
ø2.20
(0.09)
max
To Order
MODEL NO. RANGE MODEL NO. RANGE “A” DIM “B” DIM
±5 Vdc mm (inch) 0 to 10 Vdc mm (inch) mm (inch) mm (inch)
LD620-2.5 ±2.5 (±0.1) LD621-5 0 to 5 (0 to 0.2) 94.0 (3.7) 35.3 (1.4)
LD620-5 ±5 (±0.2) LD621-10 0 to 10 (0 to 0.4) 113.5 (4.5) 46.3 (1.8)
LD620-7.5 ±7.5 (±0.3) LD621-15 0 to 15 (0 to 0.6) 120.7 (4.8) 50.3 (2.0)
LD620-10 ±10 (±0.4) LD621-20 0 to 20 (0 to 0.8) 135.0 (5.3) 61.3 (2.4)
LD620-15 ±15 (±0.6) LD621-30 0 to 30 (0 to 1.2) 149.4 (5.9) 79.3 (3.1)
LD620-25 ±25 (±1.0) LD621-50 0 to 50 (0 to 2.0) 170.9 (6.7) 102.3 (4.0)
LD620-50 ±50 (±2.0) LD621-100 0 to 100 (0 to 3.9) 228.5 (9.0) 160.3 (6.3)
LD620-75 ±75 (±3.0) LD621-150 0 to 150 (0 to 5.9) 278.7 (11.0) 231.3 (9.1)
LD620-100 ±100 (±3.9) — — 336.2 (13.2)
LD620-150 ±150 (±5.9) — — 450.9 (17.8)
— — LD621-200 0 to 200 (7.9) 336.2 (13.2)
—
Ordering Example: LD620-2.5, DC displacement sensor with range of ±2.5 mm (±0.1 in)
with ±5 Vdc output.
ACCESSORIES
MODEL NO. DESCRIPTION
LD-TIP Tip adaptor/ball tip
LD-UJOINT-KIT U-joint retro fit kit
LD620-25, shown
smaller than actual size.
Dimensions: mm (inch)
ø = diameter
5.00
(0.2)
11.00
(0.43)
25.00
(1.0)
“A” body length
±0.5
(±0.02)
Visit omega.com/ld620 for Pricing and Details
—
J-15
LD621-300 0 to 300 (11.8) 450.9 (17.8)
LD-UJOINT-KIT
shown smaller than
actual size.
“B” Fully extended
±0.5
(±0.02)
32.00
(1.26)
17.00
(0.67)
M6 x 1.0-6g
16.00
(0.63)
full thread
ø8.00
(0.31)
ø6.00
(0.24)
ø19.00
291.2 (11.5)
457.3 (18.0)
291.2 (11.5)
457.3 (18.0
18.80
(0.75
0.71)
)
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