Mts Model FlexTest SE Manual de usuario Pagina 97

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Full-Range Digital Universal Conditioner (FRDUC)
Models FlexTest® IIm/GT/SE Controller Hardware FlexTest GT Controller Connections
97
Full-Range Digital Universal Conditioner (FRDUC) Jumpers
The following jumpers are for the Model 493.25 Full-Range Digital Universal
Conditioner. The jumpers are labeled W instead of X; the W jumpers are solder
pads. The following jumper descriptions are from the 493.xx Module Setup
configuration drawing (PN 049-336-301).
Active guard Jumper W1 enables or disables an active guard for the sensor cable. A passive
guard drive is the default.
4- or 8-wire
sensor cable
Jumpers W2 and W3 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.
Jumper W2 selects a 4- or 8-wire transducer for positive feedback.
Jumper W3 selects a 4- or 8-wire transducer for negative feedback.
The setting of jumper W8 (single ended excitation enable) may affect your
choices for these jumpers (W2 and W3).
Note +/– excitation (–excitation is standard).
W1
W1
Enable
Disable
Default
(Short to Ground)
(Cap to Ground)
Default
W2
W3
W2
W3
123
W2
W3
W2
W3
–EX to –FB shunt
in 4-wire config
-EX to +FB shunt
in 4-wire config
–EX to –FBR shunt
in 8-wire config
-EX to +FBR shunt
in 8-wire config
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