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D5 Series Spring Return Submersible LVDT Displacement Transducers

D5 Submersible Image
Type Stroke Dim.L Dim.D Dim.X Max spring force Nom sensitivity (V/V @ F.S.)
D5/40AW ±1mm 58mm 8mm 11.5mm 150gms 0.07
D5/100AW ±2.5mm 66mm 9.5mm 12.5mm 120gms 0.19
D5/200AW ±5mm 72.6mm 13.7mm 130gms 0.36
D5/300AW ±7.5mm 95.3mm 15.25mm 245gms 0.42
D5/400AW ±10mm 106.5mm 19mm 210gms 0.58
MD5/500AW ±12.5mm 129mm 21.6mm 215gms 0.78

The RDP Electronics D5/AW series of precision submersible LVDT displacement transducer units employ the LVDT transducer principle which means that they are very robust as well as being very accurate. They are designed to provide high precision measurement in industrial environments. All external metal components of the position sensor are stainless steel and low friction bush bearings are used to ensure sub-micron repeatability. The thick steel casing ensures both excellent magnetic screening and easy mounting of the submersible lvdt displacement transducer in the measurement application.

The D5/AW units are sealed in such a way as the liquid in which they are submerges is isolated from the coils and any of the electrical parts of the sensor. However, the fluid is free to enter the armature tube (the tube that contaings the moving armature). As the end of this tube is sealed, the liquid can get no further. Fluids that are not magnetic have no effect on the operation of the sensor. The design of the D5/AW position sensor resembles a piston and as such it should be noted that mechanical frequency response may be reduced in underwater applications.

The D5/AW LVDT transducer units are made from stainless steel and are designed for measurement of position in water and other non-corrosive liquids. If your application is in saline solutions or other corrosive or abrasive fluids, please contact RDP Electronics for advice.

Specification
Supply Requirements 0.5V to 7V r.m.s, 2 to 10kHz sinusoidal.
Calibrated Supply 5V r.m.s at 5kHz sinusoidal, 30mA
Linearity (% error of full scale) ±0.5% standard. 0.25% and 0.1% optional on some models.
Phase shift Typically 10° at 5V 5kHz excitation
Output load (optimum) 100K Ohms
Zero Temperature Coefficient ±0.01% F.S. /°C
Span Temperature Coefficient ±0.01% F.S. /°C
Operating Temperature Range -20°C to +125°C
Electrical Termination 2m screened cable (Longer available to order)
Operating Pressure 35bar (sealed onto cable outer sleeve)

RDP Electronics can offer a full range of LVDT transducer signal conditioning for these and our other position sensor units.


Due to the RDP Electronics policy of on-going development, specifications may change without notice.
Any modification may affect the specification of our equipment.