HBM ClipX Bedienungsanleitung Seite 43

Strain gage full or half bridge and piezo-resistive sensors in 4-wire config-
uration (1-Wire TEDS optional)
Important: When connecting in a 4-wire configuration, you must con-
nect 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.
When connecting cable lengths > 50 m, instead of the feedback
bridges you must solder in one resistor each with half the value of the
bridge resistance (1/2 R
Fig. 15: Plug terminal X4, 4-wire pin assignment; with half bridge, connector 4 is
omitted; TEDS optional, view from below (solder side)
ClipX
Pt100
2
TEDS
1
S
4 Measurement signal −
1 Measurement signal +
2' Sense lead −
2 Bridge excitation voltage −
3' Sense lead +
3 Bridge excitation voltage +
Cable shield
AI
I
U
A04643_04_X00_03 HBM: public
).
B
1-Wire-TEDS
rd
wh
bk
bu
Feedback bridges for 4-wire circuitry
Cable wire colors (HBM transducer):
bk = black; bu = blue; rd = red;
wh = white;
Electrical connections, LEDs
2
1
3
4
41