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Mantracourt Electronics Limited

  LVDT/A & LVDT/D User Manual 

Chapter 2 Installing the LVDT/A & LVDT/D 

In order to maintain compliance with the EMC Directive 2004/108/EC the following installation recommendations 
should be followed. 

Inputs: 

Analogue 
Output: 

Use individually screened twisted multipair cable. (e.g. FE 585 - 646) 
The pairs should be : 
pins 1 & 6 
pins 2 & 5 
pins 3 & 4 
Terminate all screens at pin 1 of the input.  The screens should not be 
connected at the transducer end of the cables. 

Use screened twisted pair cable. (e.g. RS 626-4761) 

Terminate screen at pin 1 of the input.  
The screen should not be connected at the host port. 

Pin 1 of the input should be connected to a good Earth. The Earth connection 
should have a cross-sectional area sufficient enough to ensure a low 
impedance, in order to attenuate RF interference. 

Country 

Supplier 

Part No 

Description 

UK 

Farnell 

148-539

Individually shielded twisted multipair cable (7/0.25mm)- 2 pair 
Tinned copper drain. Individually shielded in polyester tape.  
Diameter: 4.19 mm 
Impedance: 54 Ohms: Capacitance/m: core to core 115 pF & core to 
shield 203 pF 

UK 

Farnell 

585-646

Individually shielded twisted multipair cable (7/0.25mm)- 3 pair 
Tinned copper drain. Individually shielded in polyester tape.  
Diameter: 6.86 mm 
Impedance: 62 Ohms: Capacitance/m: core to core 98 pF & core to 
shield 180 pF 

UK 

RS 

367-533

Braided shielded twisted multipair cable (7/0.2mm)- 1 pair 
Miniature- twin -round Diameter: 4.8 mm 
Impedance: 62 Ohms: Capacitance/m: core to core 120 pF & core to 
shield 210 pF 

Summary of Contents for LVDT

Page 1: ...LVDT A LVDT D Amplifier Signal Conditioner User Manual MICRON METERS www micronmeters com metersinfo micronmeters com...

Page 2: ...ersions the LVDT A for 110 240 V AC or 18 24 V DC operation and the LVDT D which is DC powered only Transducer sensitivities between 20 mV and 10 V are accommodated by a combination of DIL switch sett...

Page 3: ...connected to a good Earth The Earth connection should have a cross sectional area sufficient enough to ensure a low impedance in order to attenuate RF interference Country Supplier Part No Descriptio...

Page 4: ...to 50 C Humidity 95 non condensing Storage temperature 20 C to 70 C Two power supply options are available LVDT A 220 230 VAC 50 60 Hz 110 120 VAC 50 60 Hz 5 W Max LVDT A LVDT D 18 24 V DC 5 W approx...

Page 5: ...the internal 15V supply on the LVDT and the ve end is connected to the LVDT output The current through the load is sunk by the LVDT towards ground 0V N B In this mode neither connection to the output...

Page 6: ...JP1 JP2 Switch Settings 0 Off 1 On x Don t care Analogue Output Options SW4 SW4 1 2 3 4 5 10 V 0 0 0 x x 5 V 0 1 0 x x 0 10 V 0 1 1 x x 0 5 V 1 1 1 x x 0 20 mA x x x 0 0 4 20 mA x x x 1 1 LVDT Excita...

Page 7: ...supplied by the manufacturer see table Chapter 4 Page 1 This is normally specified as sensitivity or full range output and should be in mV or Volts 2 Apply the known low calibration displacement this...

Page 8: ...f Switching SW2 8 on reduces the excitation by a factor of two This allows lower impedance transducers to be used without overloading the electronics Please note that it may be necessary to alter the...

Page 9: ...1 V AC V DC mA 200 R V rms kHz 20 Ohms V FSD FSD FSD mA Ohms Hz Hz FSD FSD V C FSD C FSD Gain stability 1st 1000 hours Gain stability 2nd 1000 hours 90 day offset stability Output load stability gain...

Page 10: ...Mantracourt Electronics Limited LVDT A LVDT D User Manual 9...

Page 11: ...rance and proper packaging to prevent breakage in transit Mantracourt warranty does not apply to defects resulting from action of the buyer such as mishandling improper interfacing operation outside o...

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