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: cemb@cemb.com
T5-LVDT/100-24 TRANSDUCER
FUNCTION
The transducer T5-LVDT/100/24 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/100 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
Range of measurement : 0 to 100 mm
Composition : Sensor T5-LVDT/100
Sensitivity : 0,1 V/mm
Transformer LVDT : . Impedance, primary winding = 535 ohm/2500 Hz
. Impedance, secondary windings = 875 ohm/2500 Hz
. Max linearity error = ± 1.0% f.s.
. Nominal sensitivity = 18 mV/0.001”/V
. Frequency range = 50 Hz to 10 kHz
. Supply voltage = 3 V rms (rated)
Range of application : . Temperature = -55°C to +95°C
. Humidity = max 95% not condensing
. Vibrations = max 20 g / 2 KHz
. Ambient = IP55 EN 60529/10.91 standards
Maintenance : none
Power supply : . Transducer = +15 Vdc, GND
Connection : . Transducer = connector 7-pin MIL C-5015
series 3106/16, standard kit
. Adapter = connector 5-pin MIL C-5015
series 3106/16, standard kit
Outer casing material : Aluminium
Weight : Kg 20 approx.
Drawings enclosed : 51351 = Overall dimensions, mounting, connections
Adapter AD1-BOX
Adapter = +15 to +24 Vdc, GND
N.B.
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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