MTS Model FlexTest SE - Manual (Page 96)

Models FlexTest® IIm/GT/SE Controller Hardware
Digital Universal Conditioner (DUC BC) Switches
FlexTest GT Controller Connections 96
Bridge balance Switch S1-5 changes the offset of the bridge balance circuit. If the zero offset is
too large when the sensor bridge is balanced, you should enable this feature (it
adds a 100 k
Ω resistor to the input of the conditioner preamp).
Excitation sense
Switches S1-6 and S1-7 select the local (on board) or remote (through a cable)
excitation sensor connection.
• The local selection is used with 4-wire transducer connections.
• The remote selection is used with 8-wire transducer connections.
• Switch S1-7 configures the + excitation signal.
• Switch S1-6 configures the – excitation signal.
• Both switches need to be set for the same configuration.
Single ended
excitation
Jumper W8 connects -EX to ground for situations requiring single- ended
excitation.
Default
Disable Enabl
S1-5 OFF S1-5 ON
Remote
S1-6 OFF
S1-7 OFF
S1-6 ON
S1-7 ON
Local
Default
Default
–EX = –EX –EX = GND
W8 W8