Opposing two-gauge method, Opposing two-gauge three-wire method, Four-gauge method – Yokogawa PC-Based MX100 User Manual
Page 7: Wiring procedure
7
IM MX100-72E
• Opposing Two-Gauge Method
Rg1
Rg2
Setting switch
ON
OFF
No.1
No.2
No.3
No.4
No.5
A(+V)
B( L)
C(-V)
D( H)
-B12, -B35
-NDI
No.1
ON
No.2
OFF
No.3
ON
No.4
OFF
No.5
ON
Rg1
Rg2
Bridge head
(701955 or 701956)
Setting switch
R: fixed resistance
r: resistance value of lead wire
Rg: resistance value of strain gauge
e: output voltage from bridge
E: voltage applied to bridge
SW1
ON
SW2
OFF
SW3
ON
SW4
ON
SW5
OFF
1 2 3 4 5
SW
Rg1
Rg2
1
2
3
4
5
6
7
8
ON
OFF
R
R
Rg2
Rg1
E
e
• Opposing Two-Gauge Three-Wire Method
Cannot be connected.
Use -NDI.
Rg1
Rg2
-B12, -B35
-NDI
Bridge head
(701955 or 701956)
Setting switch
R: fixed resistance
r: resistance value of lead wire
Rg: resistance value of strain gauge
e: output voltage from bridge
E: voltage applied to bridge
SW1
OFF
SW2
OFF
SW3
OFF
SW4
ON
SW5
OFF
1 2 3 4 5
SW
Rg1
Rg2
1
2
3
4
5
6
7
8
ON
OFF
e
R
R
Rg2
Rg1
E
r
r
r
r
r
r
• Four-Gauge Method
Rg1, Rg3
Rg2, Rg4
Rg1
Rg3
Rg1
Rg3
Rg4
Rg2
Rg1, Rg2
Rg3, Rg4
Setting switch
ON
OFF
No.1
No.2
No.3
No.4
No.5
A(+V)
B( L)
C(-V)
D( H)
-B12, -B35
-NDI
No.1
OFF
No.2
OFF
No.3
OFF
No.4
OFF
No.5
ON
Rg1
Rg3
Rg2
Rg4
Bridge head
(701955 or 701956)
Setting switch
R: fixed resistance
r: resistance value of lead
wire
Rg: resistance value of strain
gauge
e: output voltage from bridge
E: voltage applied to bridge
SW1
ON
SW2
OFF
SW3
ON
SW4
ON
SW5
OFF
1 2 3 4 5
SW
Rg1
Rg2
Rg3
Rg4
1
2
3
4
5
6
7
8
ON
OFF
Rg4
Rg1
Rg2
Rg3
E
e
5. Wiring Procedure