MTS 793 Controller Hardware FlexTest GT Controller Connections
85
4- or 8-Wire
sensor cable
Switches S1-1, S1-2, S1-3, and S1-4 establish the correct shunt
calibration connections for 4-wire and 8-wire sensor cables. The length
of the sensor cable determines which type of cable is used. Short
cables are typically 4-wire cables while long cables are typically 8-wire
cables.
• Switches S1-1 and S1-2 select a 4- or 8-wire transducer for positive
feedback.
• Switches S1-3 and S1-4 select a 4- or 8-wire transducer for
negative feedback.
• The setting of jumper W8 (single ended excitation enable) may
affect your choices for these switches.
Note +/– excitation (–excitation is standard). See XDCR ID-W1.
Sensor Cable Settings (4/8-Wire)
REQUIRED CONNECTION SWITCH SETTINGS
-EX to -FB shunt in 4-wire
configuration
DEFAULT
S1-1 OFF
S1-2 OFF
S1-3 ON
S1-4 OFF
-EX to +FB shunt in 4-wire
configuration
S1-1 ON
S1-2 OFF
S1-3 OFF
S1-4 OFF
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