Installation - HYDAC ELECTRONIC HDA 4700 Notice D'utilisation

HDA 4700 / 4400 with flush membrane

3 Installation

The units can be mounted directly to the hydraulic system via the thread connection.
Please ensure that the flush mounted (external) diaphragm is protected from mechanical
damage.
The tightening torque for both G 1/2 thread connectors is 45 Nm, for G1/4 it is 20 Nm.
The electrical connection must be carried out by a qualified electrician according to the
relevant regulations of the country concerned (VDE 0100 in Germany).
Pressure transducers from the HDA 4000 series are
will be provided on request.
The EMV standards: EN 61000-6-1, 2, 3 und 4 apply. However, the stipulations of those
standards will be met only if the sensor's housing has been correctly earthed by a qualified
electrician. When fitted into a hydraulic block, earthing the block via the hydraulic system is
sufficient.
Caution!
The HDA 4000 must be fitted using a suitable open-end wrench
(across flats 27) on the hexagon nut of the pressure connection.
Do not install the device by gripping the housing, as this would damage the
housing or the entire unit.
Additional installation suggestions which, from experience, reduce the effect of
electromagnetic interference:
 Make line connections as short as possible
 Use shielded lines (e.g. LIYCY 4 x 0.5 mm²)
 The cable screening must be fitted by qualified personnel subject to the ambient
conditions and with the aim of suppressing interference
 Keep the unit well away from the electrical supply lines of power equipment, as well as
from any electrical or electronic equipment causing interference
Status 2021-02-10 HYDAC ELECTRONIC GMBH
marked. A certificate of conformity
5
E
Part no.: 669872