HBM MGCplus - SG Chains and Strain Gage Rosettes on Ap815 I

Connection
SG chains and strain gage rosettes on AP815i
MGCplus A0534-30.0 HBM: public 51
4.3.9 SG chains and strain gage rosettes on AP815i
1
14
2
15
Hsg.
AP815i
13
14
25
Subchannel
1...4
Subchannel
1
Subchannel
2/6
Subchannel
3/7
Subchannel
4/8
13
14
25
1
Subchannel
5...8
Excitation voltage (-)
Cable shield
Sense lead (-)
Excitation voltage (+)
Measurement signal (+),
sense lead (+)
2
1
2'
4
5
18
SG
4/8
8
21
11
24
SG
3/7
SG
2/6
SG
1
Subchannel
5
2
15
SG
5
1
You can operate a maximum of eight SGs at 120 ohms with a 5-V current
feed. Make certain that sensor point 2' of the SG chain is as close as possi
ble for the individual strain gages and the distances between the individual
strain gages are short.