HBM ClipX Bedienungsanleitung Seite 41

Strain gage full or half bridge and piezo-resistive sensors in 4-wire configuration (1-
Wire TEDS optional)
Important: When connecting in a 4-wire configuration, you must connect
the inputs of the sense lines by wire bridges (2 at 2' and 3 at 3', also referred
to as jumpers or feedback bridges) to the supply voltage outputs, otherwise
the measurement value will always be invalid.
Abb. 19: Plug terminal X4, 4-wire pin assignment; with half bridge, connector 4 is omit-
ted; TEDS optional, view from below (solder side)
ClipX
Electrical connections, LEDs
Pt100
2
TEDS
1
S
4
Measurement signal −
1 Measurement signal +
2' Sense lead −
Bridge excitation voltage −
2
Sense lead +
3'
3 Bridge excitation voltage +
Cable shield
AI
I
U
1-Wire-TEDS
rd
wh
bk
1
bu
Feedback bridges for 4-wire circuitry
Cable wire colors (HBM transducer):
bk = black; bu = blue; rd = red;
wh = white;
2
4
3
39