ABB DSAI155A 3BSE014162R1 14 Channels Thermo Couple module
Description:
DSAI155A 3BSE014162R1 is designed as ABB Advant Master Process Control System board. 
DSAI155A is 14 measuring, 2 reference + 1 compensation ch., measuring ranges B, C, E, J, K, R, S and T with grounded or floating output signals, 12/13 bits + sign resolution, CMV ≤ 16 V,  CMRR > 100 dB (at 50 Hz).
DSTA 155 is connected to DSTA 156 with a shielded multipair twisted cable.With temperature measurement, an integrating A/D converter is used. The integration time ischosen so that the input signal is integrated during one period of the mains frequency.Mains supply frequency interference is suppressed in this way. The mains supply frequency isspecified with jumpers on the temperature measurement board. The A/D conversion is initiatedby the controller software and when the conversion is completed, the board generates aninterrupt.
The board DSAI 155 has 14 differential input channels for low level signals fromthermocouples, one channel for temperature measurement of the cold junction on DSTA 155and two reference channels on DSTA 156 for automatic adjustment of the board.