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FAA-28, Technical Manual, Rev.1.1.0 

February 2022 

 

 

Page 4 of 21 

Meanings of the positions of rotary switches

 

Programming (Prog) 
switch 

Voltage output type run 

(refer to page 9) 

 

Current output type run 

(refer to page 9) 

 

S1  

Setpoint 1 adjustment 

(refer to page 17) 

 

S2 

Setpoint 2 adjustment 

(refer to page 17) 

 

Z  

Zero adjustment 

(refer to page 11) 

 

Gain adjustment with test weight 

(refer to page 11) 

 

ZF 

Fast zero adjustment 

(refer to page 13) 

 

GF 

Fast gain adjustment with 20% test 
weight of Maximum scale capacity 

(refer to page 13) 

Adjustment (Adj) 
switch 

Operation mode (Run) 

 

   

Special Functions in “Fast Adjustment, “Setpoint 
Adjustment”  

LEDs 

Annunciator LEDs (Run, Output type, Error). 
Refer to 

chapter 9

  

 

Features 

 

  Minimized zero and span drifts due to its microcontroller technology and high 

accuracy, very low temperature drift, 24 bits ADC and 16 bits DAC converters. 

  Long time stability and low temperature drifts eliminate the frequent 

readjustment period. 

  Very easy and user friendly digital adjustment via rotary switches located on 

the front of the instrument.  

  Programmable digital adaptive anti-vibration filters to minimize environmental 

vibrations. 

  eCal- electronic calibration without weights and digital filter adjustment via 

RS232C port and xFace PC software. 

  Fast calibration feature to reduce the adjustment time and to minimize 

adjustment error. 

  Calibration at PLC does not require readjustment after changing instrument 

because of matching in the production. 

  1 zeroing input and 2 free relay contact outputs for alarm or controlling valves, 

gate etc. 

 
 

 

Summary of Contents for FAA-28

Page 1: ...FAA 28 Analog Amplifier Technical Manual Flintec GmbH Bemannsbruch 9 74909 Meckesheim GERMANY www flintec com...

Page 2: ...sioning 9 4 Adjustments 10 4 1 Adjustment with Rotary Switches 10 4 2 Fast Adjustment to Nominal Output Range 12 4 3 eCal Electronic Adjustment Via xFace Software 12 4 4 Adjustment eCal With PLC 13 4...

Page 3: ...this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means mechanical photocopying recording or otherwise without the prior written permission of Flint...

Page 4: ...t the electronic calibration eCal and fast calibration with 20 max test load reduces the calibration time All analog outputs of the instruments are matched in the production to perform calibration at...

Page 5: ...to chapter 9 Features Minimized zero and span drifts due to its microcontroller technology and high accuracy very low temperature drift 24 bits ADC and 16 bits DAC converters Long time stability and l...

Page 6: ...PC Preadjusted instrument for calibration at PLC Digital Filter Programmable 9 step adjustable digital adaptive filter Analogue outputs Current output for 0 20 mA and 4 20 mA or voltage output for 0 5...

Page 7: ...nst radio frequency interference and the cabinet shall be connected to ground against the electromagnetic disturbances Load cell cable and analog output cable trays must be separated from others if po...

Page 8: ...rgizing to avoid damages of the instrument and load cells In 4 wire installations the sense and excitation pins with the same polarity should be short circuited at the connector side If you have junct...

Page 9: ...one of the analog output types can be used at the same time and has to be selected in the setup type Install the analog output measuring instrument for adjustment e g multimeter Pin Name Definition I...

Page 10: ...osition Connect or disconnect TxD and RxD pins according the table above to set the output range Turn the adjustment switch to the position After 2 seconds turn in back to the 0 position if the instru...

Page 11: ...flashes to indicate the instrument is not in operation mode Zero Adjustment Connect the measurement instrument Multimeter is recommended to the analog output Unload the scale the scale must be empty...

Page 12: ...2 5VDC Turn the adjustment switch to the G position from the analog output type position you set before Increase or decrease the analog output by adjustment rotary switch to the calculated output val...

Page 13: ...n and turn it back to 0 position 2 seconds later Turn the programming switch to analog output type position for operation For example for 4 20mA range and for 100kg capacity scale load the scale 20kg...

Page 14: ...RS232C serial interface by commands or by xFace software If you want to use your own software to calibrate the FAA 28 from your PLC or PC you may use the commands below The yellow colored bytes are th...

Page 15: ...01100009000204000000FAE6 Scale capacity is 250kg Response 011000090002E4 ACK Step 6 SAVE with estimated dead load value Command 011000000001020007E5 Save the eCal values Response 011000000001EE ACK Or...

Page 16: ...e_Add Function Last_data STX and CSUM are neglected while calculating CSUM Example For Medium 1 filter 011000220001020001XX CSUM 0 01 10 00 22 00 01 02 00 01 0 37 C9 Command is 011000220001020001C9 Ca...

Page 17: ...n the programming switch to S1 or S2 position from operation position from V or I position Turn the Adj switch to positions position and turn it back to 0 position 2 seconds later Turn the programming...

Page 18: ...ted Off 0 10VDC Open circuited Flash 0 5VDC Short circuited Blinking The status of the LEDs in the operation type is given in the table below Refer to chapter 9 in case of the Err LED turns on The ana...

Page 19: ...ntains the xFace software v2 03 or higher into the CD ROM drive Double click Setup exe to start the installation The setup Wizard will be displayed Follow the menus in the setup wizard step by step Af...

Page 20: ...oints in section Setup 9 In section Status instrument information are available 10 Power off the instrument before disconnecting from PC Bring the programming switch to the analog output type position...

Page 21: ...not let unauthorized people interfere with the instrument FRONT PANEL LEDS DEFINITION Run V I Err Off Off Off No power Board failure On On Off Operation in 4 20mA output type On Off Off Operation in...

Page 22: ...FAA 28 Technical Manual Rev 1 1 0 February 2022 Page 21 of 21 Flintec GmbH Bemannsbruch 9 74909 Meckesheim GERMANY www flintec com...

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