Making Preparations for Measurements
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IM 720120-01E
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App
Index
3.9 Connecting a 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, and 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 rated voltage to earth (between each terminal and earth ground)
42 V (DC + ACpeak) (CAT II, 30 Vrms)
French
ATTENTION
Brancher seulement un pont de jauge de contrainte (tête de pont) ou un
transducteur de jauge de contrainte au module de contrainte. Le fait de brancher
d’autres appareils ou d’appliquer une tension dépassant les valeurs indiquées ci-
dessous sur le module de contrainte risque d’endommager la zone d’entrée.
• Tension d’entrée maximale (entre l’entrée + et l’entrée –)
10 V (c.c. + crête c.a.)
• Tension nominale maximale à la terre (entre chaque borne et mise à la terre)
42 V (c.c. + crête c.a.) (CAT II, 30 Vrms)
Connecting the Strain Gauge
The bridge head (701955, 701956, 701957, and 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, or 701958).
If you are using a strain gauge bridge or a strain gauge transducer other than the bridge
head (701955, 701956, 701957, and 701958), see the respective manuals.