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Messotron MBI 46.51.39 Series, Руководство по эксплуатации

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Operating Instructions MBI 46.51.39

 

 

 

Version 0.9 

 

en MBI 46.51.39 operating instructions.docx 

Issue: 08/2022 

page 19 from  29 

 

5.5  Adjustment of gain range 

To match the measuring amplifier with the sensitivity of the sensor, the gain range

 

be selected 

by use of  JP1 jumper. Depending on the nominal output signal of the transducer used, the 
plug-in bridge is plugged into one of the 4 gain ranges. 

 

 

 

 

Gain Range: 

JP1-4:  310 ... 740 mV/V 

JP1-3:  130 ... 310 mV/V 

JP1-2:  55 ... 130 mV/V 

JP1-1:  25 ... 55 mV/V 

Figure 118  Setting of Gain Range

 

 

5.6  Adjustment of offset, gain and phase-shift 

 
Subsequently, the measuring amplifier can be adapted to the displacement transducer and 
the desired output signal by means of trimming potentiometers for fine adjustment. Small  
tolerances in the mechanical installation of the transducer can also be compensated. 
 

 

The precise nominal properties of the measuring amplifier are only achieved after 
about 15 minutes of warm-up time. 

 

TIP 

Содержание MBI 46.51.39 Series

Страница 1: ...Operating Instructions MBI 46 51 39 Version 0 9 en MBI 46 51 39 operating instructions docx Issue 08 2022 page 1 from 29 Operating instructions for Carrier Frequency Amplifier Series MBI 46 51 39...

Страница 2: ...e of warnings 5 3 2 Other markings 5 4 Product 6 4 1 Terms and definitions 6 4 2 Function and design 8 4 3 Suitable displacement transducers 8 4 4 Types and options 11 5 Commissioning 13 5 1 Wiring De...

Страница 3: ...ate has been removed from the device 1 2 Importance of Nameplate The specification of the model type and the manufacturing number is required for repair and for the procurement of subsequent deliverie...

Страница 4: ...rms of temperature and IP protection etc Do not use the device near other machinery or devices such like large electrical machines high voltage cables and facilities that generate strong electric or m...

Страница 5: ...eath or serious bodily injury occurs if it is not avoided Indicates a dangerous situation in which death or serious bodily injury can occur if not avoided Characterizes a dangerous situation in which...

Страница 6: ...oke sensors based on the eddy current principle Long stroke sensors are inductive displacement sensors using a half bridge circuit where only one coil is used for measuring The second coil is designed...

Страница 7: ...e per mm of displacement e g 10 mV V mm For standardization purposes information on sensitivity and rated output for MESSOTRON displacement sensors is determined and provided independent of phase i e...

Страница 8: ...ly i e in relation to the supply voltage This avoids measurement errors due to fluctuations in the supply voltage e g due to impedance change of the displacement transducer or cables In the following...

Страница 9: ...its middle position the impedances of the two measuring coils change and the measuring voltage grows proportionally within the measuring range proportionally with the displacement of the core 4 3 2 L...

Страница 10: ...replacement circuit A movable measuring tube changes the impedance of the measuring coil according to the eddy current principle In contrast to the symmetrical displacement transducers the electric ze...

Страница 11: ...Drawing The device comes in a rugged aluminum field housing of industrial standard It is dustproof and protected against water jets in accordance with protection class IP 66 DIN EN 60529 For mounting...

Страница 12: ...moisture and dirt from outside The individual strands of the connection cables are placed in the protected interior of the housing The cable shield is connected to the housing with a grounding screw M...

Страница 13: ...D protective measures Swapped or faulty connection in particular external voltages connected to the signal output or sensor input output can destroy the device If the connection cable is laid properly...

Страница 14: ...ment in the following table using spring loaded terminals There is no soldering work required Pin Clamp Type Assignment 1 Supply Supply voltage 24V High 2 Supply Supply voltage 24V Low 3 Signal Voltag...

Страница 15: ...be is moved down away from the transducer coil If an inverted negative decreasing signal is desired one of the terminals 8 and 9 or alternatively terminals 6 and 7 may simply be swapped MBI 46 51 39 D...

Страница 16: ...in the mechanical adjustment of the displacement transducer can also be compensated Figure 8 7Correcting the Zero Point The adjustment of the zero point potentiometer causes a vertical shift of the me...

Страница 17: ...that the phase position caused by the displacement transducer is compensated and the full sensitivity of the displacement transducer can be used 5 3 3 Reinforcement The gain of the amplifier must be a...

Страница 18: ...r type Before starting the adjustment the measuring amplifier must be set whether an inductive displacement transducer with symmetrical or with asymmetrical coil mount is to be used In the standard co...

Страница 19: ...ne of the 4 gain ranges Gain Range JP1 4 310 740 mV V JP1 3 130 310 mV V JP1 2 55 130 mV V JP1 1 25 55 mV V Figure 118 Setting of Gain Range 5 6 Adjustment of offset gain and phase shift Subsequently...

Страница 20: ...tructions MBI 46 51 39 Version 0 9 en MBI 46 51 39 operating instructions docx Issue 08 2022 page 20 from 29 Figure 12 Position of the trim potentiometers gain adjustment zero point offset phase shift...

Страница 21: ...range and set the voltage to the desired output signal with the gain potentiometer Then check the setting at the beginning of the nominal range and correct it slightly if necessary If adjusting the ou...

Страница 22: ...the amplifier according to the steps described above The maximum linearity error in the measuring range under consideration is 0 5 It is zero in the middle and at the end of the measuring range Figure...

Страница 23: ...improve the curve omitting the setting at zero point Slightly adjust the zero point by the potentiometer and thus move the linearity curve until the maximum positive and negative error are equal in a...

Страница 24: ...08 2022 page 24 from 29 5 7 3 Other linearity optimizations Figure 1613 Null error setting at the beginning and end of the measuring range 0 5 0 4 0 3 0 2 0 1 0 0 1 0 2 0 3 0 4 50 45 40 35 30 25 20 1...

Страница 25: ...HINT Do not try to repair a defective amplifier independently Repair attempts of any kind lead to the loss of the warranty and liability claim MESSOTRON devices are intended for use in harsh industria...

Страница 26: ...es to avoid electrostatic charging ESD protective measures When cleaning pay attention to the following points Clean the case or front panel only with a soft slightly damp cloth Carefully remove dry d...

Страница 27: ...Operating Instructions MBI 46 51 39 Version 0 9 en MBI 46 51 39 operating instructions docx Issue 08 2022 page 27 from 29 10 EU Declaration of Conformity 11 Specifications...

Страница 28: ...rature coefficient of zero point 0 10 10 K 100 mV V 0 15 10 K 20 mV V Temperature coefficient of gain 0 05 10 K 100 mV V 0 15 10 K 20 mV V Operating temperature 30 70 C Storage temperature 30 85 C Pro...

Страница 29: ...ng instructions docx Issue 08 2022 page 29 from 29 Changes and errors excepted 2022 MESSOTRON GmbH Co KG MESSOTRON GmbH Co KG Friedrich Ebert Str 37 D 64342 Seeheim Jugenheim Germany Tel 49 6257 999 7...

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