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80537_MAN_VDA-I_10-2017_ENG

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3.  OPERATION

3.1. 

Power-on

Power is supplied by the controller to which the amplifier is 

connected;  therefore,  the  amplifier  is  powered  on  and  off 

 

simultaneously with the controller.

3. OPERATION

3.2.  Reset

The reset function is used to tare/zero the output signal. 

To run a Reset, supply voltage from 12 to 36 V for at least 25 

ms  (there are no limits to longer durations) to the Reset input 

of the function in question.

It’s  possible  to  tare  an  input  signal  up  to  500%FS  with  the 

amplifier. If the signal is higher than 500%FS, it is not possib

-

le to tare the signal anymore.

With  the  power-on  reset  function  the  amplifier  generates  a 

reset signal when power is applied to device.

10

0

15

28

V

Operative

Reset

> 25 ms

Operative

t

24

Summary of Contents for 80537

Page 1: ...INSTRUCTION MANUAL Code 80537 VDA I VARIABLE DIGITAL INLINE AMPLIFIER 80537_MAN_VDA I_10 2017...

Page 2: ......

Page 3: ...neral installation rules 5 2 1 1 1 Protection against infiltration of dust and water 5 2 1 1 2 Minimum space for ventilation 5 2 1 2 Positioning 5 2 2 Electrical connections 5 2 2 1 General rules for...

Page 4: ...fully checked Gefran S p A assumes no liability regarding the presence of any errors or regarding damage to property and or harm to individuals due to any improper use of this manual Gefran S p A als...

Page 5: ...The variable digital inline amplifier VDA I converts the signal from strain sensors and load cells into a voltage or current output signal The VDA I amplifier can be used in dynamic and static applica...

Page 6: ...L DESCRIPTION 1 2 VDA I Main features Amplifier with fast digital output For dynamic and static applications Very high strain gauge bridge offset range Compact solid aluminium housing IP65 1 3 Dimensi...

Page 7: ...temperatur must not exeed 85 C during operation 2 1 2 Positioning Fasten the amplifier to a sufficiently rigid and robust support Use the four through holes on the amplifier and M5 screws Advice The...

Page 8: ...rain gauge 2 6 n a 6 1 2 3 4 5 Excitation Signal Signal Excitation 2 3 1 4 5 6 1 2 3 4 5 Connection pin Function 1 Excitation 2 Excitation 3 Excitation 4 Signal 5 Signal 6 Excitation Sensor 2 4 bridge...

Page 9: ...output signal To run a Reset supply voltage from 12 to 36 V for at least 25 ms there are no limits to longer durations to the Reset input of the function in question It s possible to tare an input si...

Page 10: ...E stretching Allowed load 5 k 0 500 Temperature effects zero 0 01 FS C Temperature effects span 0 01 FS C 1 incl Non linearity Hysteresis Repeatability Zero offset and Span offset 2 Uses 50V 2J Voltag...

Page 11: ...stored 2 10 6 reset cycles allowed HO11 External high reset 24V with power on reset infinite reset cycles allowed HR11 Peak feature no peak hold O 0 0 Order code VDA I Example VDA I H A N 2 1000 00 H...

Page 12: ...80537_MAN_VDA I_10 2017_ENG 10...

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Page 14: ...GEFRAN Spa Via Sebina 74 25050 Provaglio d Iseo Bs Italien Tel 39 0309888 1 Fax 39 0309839063 info gefran com http www gefran com...

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