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DCC Series 4-20mA 2-wire Output Displacement Transducer


Electrical interface for industrial applcations
4-20mA 2 wire interface
Stainless steel
High accuracy
High cycle life
High resolution
image of DCC Series 4-20mA 2-wire Output Displacement Transducer
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 4-20mA LVDT transducer has all of the benefits of the LVDT sensor principle with the added convenience of a 2-wire interface..
This series of displacement transducer is available as either an unguided, captive or spring return version.
Unguided version.
On our unguided LVDTs the armature assembly is a separate component, to make a measurement the user must guide the armature inside the body without touching the sides. Unguided position measurement transducers are appropriate where external guidance is available and give truly non-contact operation
DCTH100/1431 to DCTH400/1431
dimensional drawing of LVDT unguided
D1=1.25''
D3=0.079''
ID=0.100''
TGF=M3
X=Center of range
DCC025U to DCC0400U
dimensional drawing of LVDT unguided
A=0.35''
D1=0.81''
D3=0.2''
D4=0.235''
ID=0.268''
TGF=M5x0.8
X=Center of range
Type Range Linearity error (% F.S.) L X (nom) Total weight Armature weight TF Inward over-travel
DCTH100/1431 5mm (0.2'') ±0.5/±0.25/±0.1 3.27'' 1.3'' 7.3oz 0.11oz 0.73'' 0.46''
DCTH200/1431 10mm (0.4'') ±0.5/±0.25/±0.1 3.27'' 1.3'' 7.3oz 0.11oz 0.73'' 0.35''
DCTH300/1431 15mm (0.6'') ±0.5/±0.25/±0.1 3.27'' 1.3'' 7.3oz 0.11oz 0.73'' 0.26''
DCTH400/1431 20mm (0.8'') ±0.5/±0.25 3.27'' 1.3'' 7.3oz 0.11oz 0.73'' 0.15''
DCC025U 25mm (1'') ±0.5/±0.25/±0.1 6.89'' 1.7'' 7.5oz 0.60oz 0.59'' 0.63''
DCC050U 50mm (2'') ±0.5/±0.25/±0.1 7.99'' 2.7'' 9.5oz 0.81oz 0.59'' 0.87''
DCC100U 100mm (4'') ±0.5/±0.25/±0.1 12.48'' 3.2'' 13.0oz 1.31oz 0.59'' 0.63''
DCC150U 150mm (6'') ±0.5/±0.25/±0.1 16.93'' 4.7'' 1.1lb 1.94oz 0.59'' 1.14''
DCC200U 200mm (8'') ±0.5/±0.25/±0.1 18.70'' 5.2'' 1.4lb 2.50oz 0.59'' 0.63''
DCC300U 300mm (11.8'') ±0.5/±0.25 26.22'' 7.2'' 1.9lb 3.53oz 0.59'' 0.63''
DCC400U 400mm (15.7'') ±0.5/±0.25 33.70'' 10.2'' 2.8lb 4.94oz 1.15'' 1.06''

Captive guided version.
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.
dimensional drawing of LVDT captive guided
A=0.91''
D1=0.81''
TGF=M5x0.8
TR=M5x0.8 / 0.4''
X=Center of range
Type Range Linearity error (% F.S.) L X (nom) D3 Total weight TF Inward over-travel Outward over-travel
DCC025C 25mm (1'') ±0.5/±0.25/±0.1 7.64'' 1.5'' 0.187'' 12.0oz 0.59'' 0.39'' 0.47''
DCC050C 50mm (2'') ±0.5/±0.25/±0.1 8.74'' 2.5'' 0.187'' 14.0oz 0.59'' 0.51'' 0.39''
DCC100C 100mm (4'') ±0.5/±0.25/±0.1 13.23'' 3.0'' 0.187'' 1.1lb 0.59'' 0.39'' 0.55''
DCC150C 150mm (6'') ±0.5/±0.25/±0.1 17.64'' 4.5'' 0.187'' 1.4lb 0.59'' 0.94'' 0.6''
DCC200C 200mm (8'') ±0.5/±0.25/±0.1 19.45'' 5.0'' 0.187'' 1.7lb 0.59'' 0.31'' 0.6''
DCC300C 300mm (11.8'') ±0.5/±0.25 26.93'' 7.0'' 0.187'' 2.3lb 0.59'' 0.47'' 0.67''
DCC400C 400mm (15.7'') ±0.5/±0.25 34.45'' 10.0'' 0.187'' 3.2lb 1.25'' 0.87'' 0.98''
DCC500C 500mm (19.7'') ±0.5/±0.25 42.01'' 12.0'' 0.187'' 3.7lb 1.05'' 1.34'' 1.38''
DCC760C 760mm (29.9'') ±0.5 57.99'' 16.0'' 0.187'' 4.9lb 0.75'' 0.51'' 0.51''
DCC940C 940mm (37.0'') ±0.5 68.50'' 20.0'' 0.236'' 5.8lb 1.05'' 0.20'' 1.30''

Spring return version.
Our spring displacement transducer has bearings to guide the armature inside the measurement sensor and a spring which pushes the armature to the fully out position. Spring return LVDTs are appropriate where it is not possible to connect the transducer armature to the moving component being measured.
DCTH100AG/1431 to DCTH400AG/1431
dimensional drawing of LVDT spring return
D1=1.25''
D2=0.315''
D3=0.16''
L2=1.40''
X=Center of range
DCC025A to DCC150A
dimensional drawing of LVDT spring return
A=0.35''
D1=0.81''
D3=0.187''
X=Center of range
Type Range Linearity error (% F.S.) L X (nom) Total weight Spring force at X Spring rate Inward over-travel Outward over-travel
DCTH100AG/1431 5mm (0.2'') ±0.5/±0.25/±0.1 3.27'' 0.5'' 7.8oz 4oz. 9oz/inch 0.09'' 0.05''
DCTH200AG/1431 10mm (0.4'') ±0.5/±0.25/±0.1 3.27'' 0.5'' 7.8oz 4oz. 7oz/inch 0.01'' 0.05''
DCTH300AG/1431 15mm (0.6'') ±0.5/±0.25/±0.1 3.27'' 0.7'' 7.8oz 5oz. 6oz/inch 0.06'' 0.05''
DCTH400AG/1431 20mm (0.8'') ±0.5/±0.25 3.27'' 0.9'' 7.8oz 6oz. 7oz/inch 0.05'' 0.05''
DCC025A 25mm (1'') ±0.5/±0.25/±0.1 7.17'' 1.5'' 8.0oz 5oz 2oz/inch 0.04'' 0.51''
DCC050A 50mm (2'') ±0.5/±0.25/±0.1 8.27'' 2.5'' 10.0oz 7oz 3oz/inch 0.12'' 0.39''
DCC100A 100mm (4'') ±0.5/±0.25/±0.1 12.76'' 3.0'' 14.0oz 6oz 2oz/inch 0.31'' 0.55''
DCC150A 150mm (6'') ±0.5/±0.25/±0.1 17.17'' 4.5'' 1.1lb 1lbs 3oz/inch 0.59'' 0.59''

Specification
Excitation/supply (acceptable) 12V to 36V
Output 4-20mA (4mA = inward full scale)
Output ripple 50uA (peak-to-peak)
Analogue output bandwidth 250Hz
Linearity error (Standard) ±0.5% F.S.
Linearity error (Optional on some models) ±0.25% F.S.
Linearity error (Optional on some models) ±0.1% F.S.
Temperature coefficient (span) ±0.017% F.S. /℉ (typical)
Operating temperature range 14℉ to 158℉
Electrical termination 6.6ft (integral cable) Longer available to order.

Connection details
DCC

Options and accessories
TM0256 Increased resistance to moisture image of Resistant to Moisture
Rod-end bearings for captive-guided position transducers End bearings option thumbnail
Mounting block for RDP transducers  ( >=25mm range ) mounting block thumbnail