YOKOGAWA SL1400 - Connecting the Bridge Head

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IM 701240-01E
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App
Index
Preparations for Measurements
3.11 Connecting the Bridge Head
Strain is measured by connecting a strain gauge bridge (bridge head) or a strain gauge
transducer to the strain module (701270 (STRAIN_NDIS) or 701271 (STRAIN_DSUB)).
This section will mainly describe the procedures and precautions related to the
connection of the bridge head (Model 701955/701956/701957/701958). For the
connection of other strain gauge bridges or strain gauge transducers, see the respective
manuals.
CAUTION
Only connect a strain gauge bridge (bridge head) or a strain gauge transducer
to the strain module. Connecting other devices or applying a voltage that
exceeds the values indicated below to the strain module may damage the input
section.
• Maximum input voltage (between Input+ and Input–)
10 V (DC+ACpeak)
• Maximum allowable common mode voltage (between each terminal and earth
ground)
42 V (DC+ACpeak) (CAT II, 30 Vrms)
Connecting the Strain Gauge
The bridge head (701955/701956/701957/701958) supports six types of connection
methods: single-gauge method, single-gauge three-wire method, adjacent-side two-
gauge method, opposite-side two-gauge method, opposite-side two-gauge three-wire
method, and four-gauge method. For details, see the manual that comes with the bridge
head (701955/701956/701957/701958).
If you are using a strain gauge bridge or a strain gauge transducer other than the bridge
head (701955/701956/701957/701958), see the respective manuals.
Connecting the Strain Module and the Bridge Head
When Using the Strain Module (701270) and the Bridge Head (701955/701956)
Using the cable that comes with the bridge head (701955/701956), connect the bridge
head to the 701270 (STRAIN_NDIS).
Strain Module
701270(STRAIN_NDIS)
Cable
Bridge head
701955/701956
When Using the Strain Module (701271) and the Bridge Head (701957/701958)
Using the cable that comes with the bridge head (701957/701958), connect the bridge
head to the 701271 (STRAIN_DSUB).
Cable
Bridge head
701957/701958
Strain Module
701271(STRAIN_DSUB)