HDA 4100 / HDA 4300
9
Stand: 16.12.2013
HYDAC ELECTRONIC GMBH
Mat. Nr.: 669687 D/E/F
1 GENERAL
If you have any queries regarding technical details or the suitability of the pressure transmitter for your
application please contact our sales/technical department. The HDA 4000 series of transmitters are
individually calibrated on computercontrolled test rigs and subjected to a final test. The pressure
transmitters are maintenance-free and should operate perfectly when used according to the specifications
(see technical details). If faults do nonetheless arise, please contact HYDAC Service. Interference by
anybody other than HYDAC personnel will invalidate all warranty claims.
2 ASSEMBLY
The pressure transmitter can be fitted directly to the hydraulic system via the threaded connection. For
mechanical decoupling in the case of strong vibrations or knocks we recommend that the pressure
transmitter be mounted by means of a clamp with rubber insert and that the hydraulic connection be made
via a Minimess hose.
The recommended mounting position is vertical with the pressure connection pointing upwards in hydraulic
applications and vertical with the pressure connection pointing downwards in pneumatic applications.
The tightening torque for the G¼ male thread should be approx. 20 Nm, and approx. 45 Nm for G½ male
thread.
The electrical connection should be carried out by a qualified electrician according to the relevant
regulations of the country concerned (i.e. VDE 0100 in Germany).
The pressure transmitters of the series HDA 4000 carry the mark. A declaration of conformity is
available on request. Conformance with EMC standards: EN 61000-6-1, EN 61000-6-2, EN 61000-6-3, EN
6100-6-4.The requirements of the standards are fulfilled only if the pressure transmitter housing is earthed
correctly by qualified personnel.
When fitting the pressure transmitter into a hydraulic block it is sufficient if the block is earthed via the
hydraulic system. In the case of hose-mounting, the housing must be earthed separately.
Additional assembly notes which, from experience, reduce the effect of electromagnetic interference:
•
Make line connections as short as possible
•
Use screened cables (e.g. LIYCY 4x0.5 mm²)
•
The cable screening must be fitted by qualified personnel subject to the ambient conditions and with
the aim of suppressing interference
•
Direct proximity to connecting lines of user units or electrical or electronic units causing interference
must be avoided as far as possible
