T5-LVDT/50-24

Product catalog summary

Overview
The document provides technical specifications and operational guidelines for the T5-LVDT/50-24 transducer, used for measuring absolute displacement through a linear variable differential transformer (LVDT) system.

Function
The transducer measures displacement by maintaining contact between its sensor tip and a movable machine part. The signal is processed by an adapter (AD1-BOX) for compatibility with CEMB T5 units.

Principle of Operation
A magnetic core, integral with the movable part, moves within a fixed coil. The coil's primary and secondary windings produce an output signal proportional to the core's displacement, which is then processed by CEMB instruments.

Technical Characteristics

Measurement Range: 0 to 50 mm
Sensitivity: 0.4 V/mm
Transformer Impedance: Primary - 600 ohm/2500 Hz; Secondary - 800 ohm/2500 Hz
Max Linearity Error: ± 0.5% f.s.
Frequency Range: 50 Hz to 10 kHz
Supply Voltage: 3 V rms
Application Range: Temperature -55°C to +95°C, Humidity max 95% non-condensing, Vibration max 20 g/2 KHz
Protection: IP55 EN 60529/10.91
Power Supply: Transducer +15 Vdc, Adapter +15 to +24 Vdc
Connection: 7-pin and 5-pin MIL C-5015 connectors
Material: Aluminium, Weight: 12.5 kg

Transducer Positioning
Instructions for positioning include removing protective caps, ensuring the movable part is in a known position, drilling mounting holes, and connecting the sensor and adapter electrically. Calibration involves aligning mechanical and electrical readings.

Operations

Remove protective caps and separate sensor from adapter.
Ensure the movable part is in a zero or known position.
Drill mounting holes and provisionally fasten the sensor.
Connect electrically and calibrate using a voltmeter.
Lock the transducer parts in position.
Handle with care to avoid damage.

Catalog excerpts

CEMB S.p.A. - 23826 MANDELLO DEL LARIO (LC) I - Via Risorgimento 9 Tel. (+39)0341/706.111 - Telefax (+39)0341/735.678 www.cemb.com e-mail: [email protected] FUNCTION The transducer T5-LVDT/25/24 is used for performing the measurement of Absolute Displacement, the measurement is made by means of a position transducer system based on a linear variable differential transformer (LVDT) by mounting the transducer body on a fixed point and positioned so that the sensor tip of transducer T5-LVDT/50 presses permanently against one end of the movable part of the machine casing. The as picked-up signal is sent to the adapter part AD1-BOX (signal converter situated downstream of the transducer), which makes it suitable for processing by one CEMB T5 unit. PRINCIPLE OF OPERATION A rod in close contact with the movable part to be checked is strictly integral with a magnetic core moving within a fixed coil inside the transducer sensor body. The coil has one primary winding and two secondary windings connected in opposing phase; the output signal (secondary winding) is proportional to the mechanical displacement of the core and should, therefore, be sent to an adapter module (AD1) which makes it suitable for subsequent processing by CEMB instruments, of the “T” series.

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TECHNICAL CHARACTERISTICS The sensor part carries a removable cover at the top. After removing this cover, it is possible to read the mechanical value of turbine casing expansion on a graduated scale.

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TRANSDUCER POSITIONING Refer to drawing Nr. 55348. FOREWORD The sensor part carries a removable cover at the top. After removing this cover, it is possible to read the mechanical value of the displacement on a graduated scale. The transducer tip is fitted with a protective cap to protect against damage during transport. Hence such cap should be removed during assembly. The tip is held firmly in contact with the movable part of an internal spring device which also provides a preloading stroke of 3.0 mm of the tip. OPERATIONS TO Remove the protective cap from the tip and separate the sensor part...

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