Assembly - HYDAC ELECTRONIC HDA 4400 Bedienungsanleitung

HDA 4400 / 4700 with flush membrane
The pressure connection is achieved with a fully sealed stainless steel front membrane
filled internally with a pressure transfer fluid. The process pressure is transmitted
hydrostatically to the measurement cell via the pressure transfer fluid.
If you have any queries regarding technical details or the suitability of the unit for your
application, please contact our Technical Sales Department.
EDS 4000 pressure transmitters are individually tested and calibrated at a computer
operated test station. They are maintenance-free and operate perfectly when used
according to the data (see Technical Data). However, if there is a cause for complaint,
please contact HYDAC Service.
Interference by anyone other than HYDAC personnel will invalidate all warranty claims.

9 Assembly

The units can be mounted directly to the hydraulic system via the thread connection.
Please ensure that the flush (external) membrane is protected against mechanical damage.
The tightening torque for both G 1/2 thread connectors is 45 Nm, for G1/4 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).
The HDA 4000 pressure transmitters are
available on request.
The EMC standards: EN 61000-6-1, 2, 3 and 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!
Installation of the HDA 4000 must be carried out using a spanner (AF 27)
CAUTION !
suiting the hexagonal nut of the pressure port.
Do not install the device by gripping the housing, as this would damage the
housing or the entire unit.
Additional installation instructions 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 shield 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: 2022-08-17
marked. A declaration of conformity is
HYDAC ELECTRONIC GMBH
7
E
Part no.: 669872