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D5W Submersible LVDT Displacement Transducer


High accuracy
High cycle life
Submersible
Stainless steel
Infinite resolution
Miniature
image of D5W Submersible LVDT 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 submersible displacement transducers are designed to make measurements whilst submerged in suitable liquids. Fluids which are non-magnetic can be allowed to flood the armature tube without affecting the operation of the transducer.
The LVDTs are available as either unguided or spring return versions.
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
End (axial) exit cable.
dimensional drawing of D5/W
D5/40W
D1=0.31''
D5/100W to MD5/500W
D1=0.37''
D3=0.079''
TGF=M3x0.5
X=Center of range
Type Range Linearity error (% F.S.) L X (nom) D1 ID Total weight Armature weight TF Inward over-travel Sensitivity (nom)
D5/40W ±1mm (±0.04'') ±0.5/±0.25 1.83'' 0.6'' 0.31'' 0.091'' 0.7oz 0.05oz 0.50'' 0.08'' 143mV/V
D5/100W ±2.5mm (±0.1'') ±0.5/±0.25 2.07'' 0.8'' 0.37'' 0.090'' 0.8oz 0.05oz 0.55'' 0.06'' 375mV/V
D5/200W ±5mm (±0.2'') ±0.5/±0.25/±0.1 2.17'' 1.0'' 0.37'' 0.090'' 0.8oz 0.06oz 0.73'' 0.11'' 320mV/V
D5/300W ±7.5mm (±0.3'') ±0.5/±0.25/±0.1 2.76'' 1.2'' 0.37'' 0.100'' 0.9oz 0.06oz 0.73'' 0.16'' 435mV/V
D5/400W ±10mm (±0.4'') ±0.5/±0.25 2.91'' 1.3'' 0.37'' 0.100'' 1.2oz 0.07oz 0.73'' 0.15'' 567mV/V
MD5/500W ±12.5mm (±0.5'') ±0.5/±0.25 3.54'' 1.4'' 0.37'' 0.100'' 1.5oz 0.08oz 0.73'' 0.15'' 773mV/V
Side (radial) exit cable.
dimensional drawing of D5/WRA
D5/40WRA
D1=0.31''
D5/100WRA to MD5/500WRA
D1=0.37''
A=0.3'' (nominal)
CL1=0.7''
D3=0.079''
TGF=M3x0.5
X=Center of range
Type Range Linearity error (% F.S.) L X (nom) D1 ID Total weight Armature weight TF Inward over-travel Sensitivity (nom)
D5/40WRA ±1mm (±0.04'') ±0.5/±0.25 1.88'' 0.7'' 0.31'' 0.091'' 0.7oz 0.05oz 0.50'' 0.08'' 143mV/V
D5/100WRA ±2.5mm (±0.1'') ±0.5/±0.25 2.07'' 0.8'' 0.37'' 0.090'' 0.8oz 0.05oz 0.55'' 0.06'' 375mV/V
D5/200WRA ±5mm (±0.2'') ±0.5/±0.25/±0.1 2.17'' 1.0'' 0.37'' 0.090'' 0.8oz 0.06oz 0.73'' 0.11'' 320mV/V
D5/300WRA ±7.5mm (±0.3'') ±0.5/±0.25/±0.1 2.76'' 1.2'' 0.37'' 0.100'' 0.9oz 0.06oz 0.73'' 0.16'' 435mV/V
D5/400WRA ±10mm (±0.4'') ±0.5/±0.25 2.91'' 1.3'' 0.37'' 0.100'' 1.2oz 0.07oz 0.73'' 0.15'' 567mV/V
MD5/500WRA ±12.5mm (±0.5'') ±0.5/±0.25 3.54'' 1.4'' 0.37'' 0.100'' 1.5oz 0.08oz 0.73'' 0.15'' 773mV/V

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.
End (axial) exit cable.
dimensional drawing of D5/AW
D5/40AW
D1=0.31''
D2=0.28''
D3=0.156''
L2=0.29''
D5/100AW to MD5/500AW
D1=0.37''
D2=0.31''
D3=0.187''
L2=0.31''
X=Center of range
Type Range Linearity error (% F.S.) L X (nom) Total weight Inward over-travel Outward over-travel Sensitivity (nom)
D5/40AW ±1mm (±0.04'') ±0.5/±0.25 2.28'' 0.5'' 0.4oz 0.04'' 0.06'' 143mV/V
D5/100AW ±2.5mm (±0.1'') ±0.5/±0.25 2.72'' 0.5'' 1.1oz 0.04'' 0.04'' 375mV/V
D5/200AW ±5mm (±0.2'') ±0.5/±0.25/±0.1 2.99'' 0.5'' 1.2oz 0.06'' 0.01'' 320mV/V
D5/300AW ±7.5mm (±0.3'') ±0.5/±0.25/±0.1 3.87'' 0.6'' 1.3oz 0.06'' 0.05'' 435mV/V
D5/400AW ±10mm (±0.4'') ±0.5/±0.25 4.31'' 0.7'' 1.6oz 0.05'' 0.05'' 567mV/V
MD5/500AW ±12.5mm (±0.5'') ±0.5/±0.25 5.20'' 0.9'' 1.8oz 0.07'' 0.05'' 773mV/V
Side (radial) exit cable.
dimensional drawing of D5/AWRA
D5/40AWRA
D1=0.31''
D2=0.28''
D3=0.156''
L2=0.29''
D5/100AW to MD5/500AW
D1=0.37''
D2=0.31''
D3=0.187''
L2=0.31''
A=0.3'' (nominal)
CL1=0.7''
X=Center of range
Type Range Linearity error (% F.S.) L X (nom) Total weight Inward over-travel Outward over-travel Sensitivity (nom)
D5/40AWRA ±1mm (±0.04'') ±0.5/±0.25 2.34'' 0.5'' 0.4oz 0.04'' 0.06'' 143mV/V
D5/100AWRA ±2.5mm (±0.1'') ±0.5/±0.25 2.72'' 0.5'' 1.1oz 0.04'' 0.04'' 375mV/V
D5/200AWRA ±5mm (±0.2'') ±0.5/±0.25/±0.1 2.99'' 0.5'' 1.2oz 0.06'' 0.01'' 320mV/V
D5/300AWRA ±7.5mm (±0.3'') ±0.5/±0.25/±0.1 3.87'' 0.6'' 1.3oz 0.06'' 0.05'' 435mV/V
D5/400AWRA ±10mm (±0.4'') ±0.5/±0.25 4.31'' 0.7'' 1.6oz 0.05'' 0.05'' 567mV/V
MD5/500AWRA ±12.5mm (±0.5'') ±0.5/±0.25 5.20'' 0.9'' 1.8oz 0.07'' 0.05'' 773mV/V

Specification
Excitation/supply (acceptable) 0.5V to 7V rms, 2kHz to 10kHz (sinusoidal)
Excitation/supply (calibrated) 5V rms, 5kHz (sinusoidal)
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) ±0.006% F.S. /℉ (typical)
Operating temperature range -4℉ to 257℉
Mounting thread M3x0.5
Electrical termination 6.6ft (integral cable) Longer available to order.
Maximum static pressure 500psi

Options and accessories
TM0315 Operating temperature range (maximum) = 392℉  ( (On some models) ) image of High Temperature Survival
Mounting block for RDP transducers mounting block thumbnail
E74 In-Line Signal Conditioning Amplifiers   ( Depending on cable type ) In-cable amplifer option thumbnail
Amplifiers Amplifier option thumbnail
Panel meter Panel meter option thumbnail