ALTHEN SG-2K-KS-12E Series Manual Download Page 17 | Manualshive

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Component diagram

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Summary of Contents for SG-2K-KS-12E Series

Page 1: ...ntrols Tel 31 0 70 392 4421 sales altheris nl France Althen DB Innovation Tél 0033 0 4 67 78 61 66 info althensensors fr Sweden Althen Sensors Control AB Tel 46 0 8 7 95 24 90 info althensensors de USA Canada Altheris Inc Sensors Controls Inc Tel 1 858 633 3572 info althensensors com Other Countries please contact us by email at sales althensensors com www althen de V2 1 eng ...

Page 2: ...3 Analogue output 10 4 3 1 Analogue output voltage 11 4 3 2 Analogue output current 11 4 3 3 Low pass filter 11 5 Starting up 12 5 1 Zero point adjustment range 12 5 2 Adjustment calibration of the amplifier 13 5 2 1 Correction of the analogue current output 14 5 2 2 Calculation of the amplification determing resistor 14 6 Maintenance 15 7 Old appliance disposal 15 Appendix 16 Datasheet 16 Oder de...

Page 3: ...he complete measuring unit must be protected against contact and influence of unauthorized persons In the case of a safety relevant application where a potential malfunction could cause damage to property or persons it is imperative that an additional independent monitor is provided In combination with sensors the maximum loads pressures etc must never be exceeded If you have reasons to assume tha...

Page 4: ...ated with a separate power source used for measurement devices only To avoid possible potential equalization currents over the shield of the cable to the following evaluation unit this shield should be connected via a suitable capacitor 10nF 200V All connection cables and the amplifier itself must not be installed in proximity to disturbance interference noise emitting devices or cables Overall th...

Page 5: ...nting any sensors may result in an increased zero balance offset If the sensor has been replaced the calibration of the amplifier must be checked A new adjustment might be necessary 3 Technical description The described 2 channel measuring amplifier serves to supply one or two strain gauge sensors with a full bridge resistance of 300 ohms or more and the amplification of the sensor signal The sens...

Page 6: ...al external delay fuse of 0 5 A is recommended If the indicator LEDs go off the supply voltage and possibly existing external protection has to be checked Notice While switch on the amplifier it is capacitive Thus the switch on current is greater than the operating current This must be taken into consideration when dimensioning and selecting the power pack especially if several amplifiers are bein...

Page 7: ...olt 10 Volt OFF ON 2 5 Volt 5 Volt 4 2 1 Connection in 4 or 6 wire technology The described measuring amplifier allows to connect the transducer in either 4 or 6 wire technology The excitation voltage received by the sensor has great influence on the sensor signal So if with a very long cable or by lengthening of it the excitation voltage drops even by a slight value the signal drops accordingly I...

Page 8: ... with the attached cable So this cable must not be shortened because it would increase the sensor signal and therefore change the accuracy With a sensor without a cable the values of the certificate have been recorded right at the connector In this case a connection in 6 wire technology is recommended Pic 1 Connection in 4 wire technology SG Amplifier SG Signal Internal jumpers J1 and J2 Sense SG ...

Page 9: ...s Thus the excitation voltage drops by 0 03 V resp 30 mV which results a measurement inaccuracy of 0 3 Pic 3 Sensor with 4 wire cable Lengthened with 6 wire cable In the picture above the cable has been lengthened with a 6 wire cable so the voltage drop of 30 mV is corrected by the amplifier by measuring the actual voltage at the end of the original cable SG Amplifier SG Signal SG Excitation volta...

Page 10: ...outputs depending on the ordered option are available Version 010 The output is 0 10 Volts max 1 mA Version B10 The output is 10 Volts max 1 mA Version 420 The output is 4 20 mA max 500 ohms Other analogue outputs available on request For parameter settings further information concerning scaling or customized analogue outputs please refer to the additional sheet Allocation Device Configuration SG ...

Page 11: ... therefore when adjusting the designated zero point the output signal has to be set slightly higher than that just in order to check if said signal does not virtually hang below 4 mA If the output reacts immediately it can be set back to 4 mA otherwise the signal of the transducer has to be checked If the current of 4 mA does not increase while loading a force to the transducer the polarity of the...

Page 12: ...ibration of the system Notice The allocation of transducer amplifier is to be complied with After replacing a transducer the calibration has to be checked It is to be noted that there is a slight dependence between zero point adjustment and amplification gain 5 1 Zero point adjustment range It is to be noted that there is a slight dependence between zero point adjustment and amplification gain The...

Page 13: ...d an inspection Adjustment Calibration The coarse amplification and thus the voltage output is determined by an internal resistor RG and can be fine adjusted by a potentiometer P 102 and P 202 To adjust the current output which follows the voltage output the potentiometer P 10 11 and P 20 21 are to be used See next chapter Before the calibration a warm up time of approx 30 mins should be kept The ...

Page 14: ...nt it can be done by 2 potentiometers inside the amplifier 5 2 2 Calculation of the amplification determing resistor The amplification is Gtotal Gdifferential amplifier x Goutput stage The amplification of the output stage is adjustable with the potentiometer P 02 GAIN The adjustable range is Goutput stage 9 5 10 5 Volts Calculation of the coarse amplification resistor RG applies for 10 Volts outp...

Page 15: ...posed of separately Amplifiers and measurement units manufactured and sold by Althen Mess Sensortechnik GmbH serve B2B purposes only Therefore those old appliances must not be given to the communal disposer but must be given back to the seller or disposed of properly If you need any further information please contact your local authorities These measures serve to protect the environment and allow ...

Page 16: ...optional up to 30 kHz Input resistance 3 MΩ Max input sensitivity 100 mV V at 10 VDC excitation supply Non linearity 0 05 FSO Electrical connection Pluggable Screw clamps Housing Plastic enclosure for top hat rail mounting IP20 Dimension B x H x D 100 x 73 2 x 118 2 mm Weight 450 g Temperature storage 20 C 60 C Temperature operating 0 C 50 C Order designation SG 2K KS 2 channel strain gauge amplif...

Page 17: ...17 18 Component diagram ...

Page 18: ...18 18 Component diagram Subject to modifications All information describe our products in general form ...

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