Parallel Connection Of Several Transducers; Shortening And Extending The Cable - HBM RTN Montageanleitung

Electrical connection
5.3

Parallel connection of several transducers

Only load cells with an aligned output (nominal (rated) sensitivity and output
resistance) are suitable for parallel connection. Wire load cells in parallel by
joining together the cable terminations of the same color.
Important
In this case, if an individual load cell is overloaded, this will not be apparent
from the output signal.
Junction box (e.g. "VKK..." or "VKEX" from HBM)
Fig. 5.3 Parallel connection of several transducers
5.4

Shortening and extending the cable

Use only shielded, low-capacitance measurement cables for extending the
cable, making sure there is a proper connection with minimal contact
resistance.
To achieve full accuracy, a 6-wire configuration should be used to extend the
cable all the way to the subsequent electronics.
A 4-wire configuration is used for the load cells and the cable must not be
shortened.
14
A01153_03_Y00_01 HBM: public
Bridge excitation voltage (+)
(black)
Sensing element (+)
Bridge excitation voltage (-)
(blue)
Sensing element (-)
(red)
Signal (+)
(white)
Signal (-)
(yellow)
Shield
Extension cable
RTN