Emc Protection - HBM PW29 Série Notice De Montage

PW29
0
Cable protection system*, comprising:
Fig. 4.2: Cable protection (implemented by the customer)

4.7 EMC protection

Important
Load cells with shielded, round cables are EMC‐tested in accordance with EC
directives and are identified by CE certification. However, you must connect
the shield of the connection cable on the shielding electronics enclosure, in
order to achieve EMC protection for the measuring chain.
Electrical and magnetic fields often induce interference voltages in the meas-
uring circuit. Therefore:
w Use shielded, low‐capacitance measurement cables only (HBM cables
fulfill both conditions).
w Do not route the measurement cables parallel to power lines and control
circuits. If this is not possible, protect the measurement cable with e. g. steel
conduit.
w Avoid stray fields from transformers, motors and contact switches.
w Do not ground the transducer, amplifier and indicator more than once.
w Connect all devices in the measuring chain to the same protective earth
conductor.
A3313-1.0 en/de/fr
- Screwed cable gland*
O‐ring (provided by customer)
Unscrew the M12 sleeve and replace
with an M12 threaded tube coupling
- Flexible cable protection tubing*
* Supplier such as Flexicon
13
(e‐mail: info@icp‐solutions.de)
HBM