Electrical connection
12
A01153_03_Y00_01
HBM: public
RTN
5
Electrical connection
The following can be connected for measurement signal conditioning:
S
Carrier-frequency amplifiers
S
DC voltage amplifiers
that are designed for strain gage measurement systems.
If rubber-metal bearings are used, the construction is insulated against the
foundation. Here, please pay attention to DIN/VDE 0100, Part 410 as regards
the necessary potential equalization.
5.1
Connection in a 4-wire configuration
(red)
(black)
(blue)
(white)
Bridge excitation voltage (-)
Bridge excitation voltage (+)
Signal (+)
Signal (-)
Sensing element (+)
Sensing element (-)
Extension cable
(6-wire configuration)
Load cell RTN…
(4-wire configuration)
(yellow)
Shield
Measuring amplifier/weighing
electronics
(6-wire configuration)
Fig. 5.1
Cable assignment of RTN...
Electrical and magnetic fields often induce interference voltages in the
measuring circuit (
also see section 5.5 “EMC protection
”).
Notice
Do not open the screwed cable gland on the load cell under any
circumstances; if it is opened inadvertently, the load cell must be sent to the
factory for repair.
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