Справочник Пользователя для VXi VT1422A
Programming the VT1422A & VT1529A/B for Remote Strain Measurement 61
Locating Resistors
Figure 3-3 provides the relationship between P.C. board location and bridge
resistor channel number. The surface mount pads nearest the through-hole
locations are in parallel with them.
resistor channel number. The surface mount pads nearest the through-hole
locations are in parallel with them.
Installing Resistors
Figure 3-4 shows a typical user selected 1/4 bridge resistor installation. Note
that resistor installations can be accomplished from the top of the board
without further disassembly. If installing through-hole resistors, be very
careful to observe the specified maximum safe resistor lead length to avoid
shorting the resistor to the chassis.
that resistor installations can be accomplished from the top of the board
without further disassembly. If installing through-hole resistors, be very
careful to observe the specified maximum safe resistor lead length to avoid
shorting the resistor to the chassis.
Figure 3-3. Locating User 1/4 Bridge Resistor Positions
R
0
2
-U
S
E
R
R
0
3
-U
S
E
R
R
0
7
-U
S
E
R
R
0
6
-U
S
E
R
R
1
1
-U
S
E
R
R
1
0
-U
S
E
R
R
1
5
-U
S
E
R
R
1
4
-U
S
E
R
R
1
8
-U
S
E
R
R
1
9
-U
S
E
R
R
2
2
-U
S
E
R
R
2
3
-U
S
E
R
R
1
7
-U
S
E
R
R
1
6
-U
S
E
R
R
2
1
-U
S
E
R
R
2
0
-U
S
E
R
R
2
7
-U
S
E
R
R
2
6
-U
S
E
R
R
3
1
-U
S
E
R
R
3
0
-U
S
E
R
R
2
4
-U
S
E
R
R
2
5
-U
S
E
R
R
2
8
-U
S
E
R
R
2
9
-U
S
E
R
R
0
8
-U
S
E
R
R
0
9
-U
S
E
R
R
1
2
-U
S
E
R
R
1
3
-U
S
E
R
R
0
1
-U
S
E
R
R
0
0
-U
S
E
R
R
0
5
-U
S
E
R
R
0
4
-U
S
E
R
P401
P402
P
4
0
3
R
0
0
-U
S
E
R
R
0
1
-U
S
E
R
OR
OR
Surface-Mount
Resistor Positions
Through-Hole
Resistor Positions
Resistor Positions
"Rxx" Indicates the
Channel Number
Figure 3-4. Installing User 1/4 Bridge Resistors
PC Board
Chassis
0.1”
2.54 mm