HBM HLCM Series, Mounting Instructions

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Connection
14
A1140-4.0 HBM: public
HLCM…
S
Do not route these measurement cables in parallel to
power and control lines. If this is not possible, protect
the measurement cable (e.g. by means of
steel‐sheathed pipes).
S
Avoid the leakage fields of transformers, motors and
contactors.
Parallel connection of several weighing modules
The load cells of the weighing modules can be connected
electrically in parallel by connecting up the wire ends with
the same color . For this HBM offers the junction boxes
VKK... or for use in intrinsically safe circuits and hazard­
ous areas the junction box VKEX (EEx e II T6). The out­
put signal will then be the mean value of the individual
output signals.
CAUTION
In such cases, an overload situation on a single load cell
cannot be detected from the output signal.
Cable extension
For extending cables, only use shielded low capacity
measurement cables (measurement cables provided by
HBM
1)
meet these requirements). Ensure that there is a
perfect connection with the lowest possible transition re­
sistance. If you use the 6‐wire circuit, you may neglect
any interference by a change in the resistance of the ex­
tension cables. However, if you extend the cable in a
1)
e.g. HBM‐extension cable, 6 wires:
- KAB8/00‐2/2/2 (sold by the meter, order no. 4‐3301.0071 = grey or 4‐3301.0082 = blue)
- CABA1 (cable reel, order no. CABA1/20 = 20 m or CABA1/100 = 100 m in length)