Model 493.21b (duc b) jumpers, Model 493.21b (duc b) jumpers 92, Force/strain sensor connections – MTS Model FlexTest SE User Manual
Page 92: Active guard

Models FlexTest® IIm/GT/SE Controller Hardware
Model 493.21B (DUC B) Jumpers
FlexTest GT Controller Connections
92
Force/strain sensor
connections
Force and strain sensors require a DC conditioning mezzanine card.
Model 493.21B (DUC B) Jumpers
The following jumpers are for the Model 493.21B 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.
Active guard is usually not required. In particular environments, active guard
drive may reduce transducer noise.
4
12
2
15
1
10
7
3
5
13
9
8
11
14
6
E4
E2
E1
E7
E3
E5
Inner
Guard
4
12
2
15
1
10
3
5
13
9
8
11
14
6
Remote Cal
Clk
Data to ID
Data from ID
Sig Gnd
Transducer
ID Module
ID Circuit
Remote Cal
-FB
-FBR
+FB
+FBR
-EX
-EXS
+EX
+EXS
DC Sensor
Backshell
GND
Future
Future
Future
Future
W1
W1
Enable
Disable
Default