HBM ClipX Bedienungsanleitung Seite 44

Electrical connections, LEDs
Strain gage full or half bridge and piezo-resistive sensors in 4-wire config-
uration with Zero-Wire TEDS, version for D-sub-HD15
Important: The solder terminals on the TEDS module are marked
AMP (Amplifier) and TD (Transducer) together with the numbers. On
the TD side, you have to connect contact 2 with 2' and 3 with 3' (short
circuit or feedback bridges), otherwise the measured value is always
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. 16: Plug terminal X4, pin assignment in 4-wire configuration and with Zero-
Wire TEDS, version for D-sub-HD15; with half bridge, connector 4 is
omitted
42
Pt100
TEDS
S
Inner cable shield
4 Measurement signal −
1
Measurement signal +
2' Sense lead −
2
Bridge excitation voltage −
3'
Sense lead +
3 Bridge excitation voltage +
Outer cable shield
AI
I
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A04643_04_X00_03 HBM: public
).
B
Zero-Wire-TEDS
Cable wire colors (HBM transducer):
bu = blue; rd = red; bk = black; wh = white;
rd
wh
AMP TD
2' 2'
bk
2 2
1
3' 3'
bu
3 3
2
4
3
ClipX