DCTH Series DC to DC LVDT Displacement Transducer0 pages

DISPLACEMENT
DCTH Series DC to DC LVDT Displacement Transducer
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High accuracy
High resolution
Voltage / 4-20mA output
High cycle life
Stainless steel

These transducers are for displacement / position measurement. They make an accurate position
measurement of the movement of the armature (the sliding part) relative to the body of the displacement
transducer.
This transducer uses the Linear Variable Differential Transformer (LVDT) principle which means that it is
probably the most robust and reliable position sensor type available. The strength of the LVDT sensor's
principle is that there is no electrical contact across the transducer position sensing element which for the user
of the sensor means clean data, infinite resolution and a very long life.
Our DC to DC LVDT transducer has all of the benefits of the LVDT sensor principle with the added
convenience of built-in LVDT electronics enabling a dc supply and dc output. As an option we can offer a 420mA 2 wire connection to the transducer on some models.
This series of displacement transducer is available as either an unguided, captive or spring return version.

Captive guided version.

20.6mm

23mm

M5x0.8 / 11mm

D3
L

Type

Range

DCTH500C
DCTH1000C
DCTH2000C
DCTH3000C
DCTH4000C
DCTH6000C
DCTH8000C
DCTH10000C
DCTH15000C
DCTH18500C

±12.5mm
±25mm
±50mm
±75mm
±100mm
±150mm
±200mm
±250mm
±375mm
±470mm

20131118

0

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+

Our captive guided displacement
transducer has bearings to guide the
armature inside the measurement
sensor. Captive LVDTs are for position
measurement applications where
guidance may be poor and end bearings
may be required.

M5x0.8

TF
X

Linearity error (%
F.S.)
<±0.5/±0.25/±0.1
<±0.5/±0.25/±0.1
<±0.5/±0.25/±0.1
<±0.5/±0.25/±0.1
<±0.5/±0.25/±0.1
<±0.5/±0.25
<±0.5/±0.25
<±0.5/±0.25
<±0.5
<±0.5

L

X

D3

194mm
222mm
336mm
448mm
494mm
684mm
875mm
1067mm
1473mm
1740mm

38mm
63mm
76mm
114mm
127mm
178mm
254mm
305mm
406mm
508mm

4.75mm
4.75mm
4.75mm
4.75mm
4.75mm
4.75mm
4.75mm
4.75mm
4.75mm
6.00mm

1/3

Total
weight
340g
398g
511g
625g
767g
1.0kg
1.4kg
1.7kg
2.2kg
2.6kg

TF
15mm
15mm
15mm
15mm
15mm
15mm
32mm
27mm
19mm
27mm

Inward overtravel
10mm
13mm
10mm
24mm
8mm
12mm
22mm
34mm
13mm
5mm

Outward overtravel
12mm
10mm
14mm
15mm
14mm
17mm
25mm
35mm
13mm
33mm

www.rdpe.com/uk/dcth.pdf