Foreword
This document is only a quick guide, which is intended to enable all of our customers to
have paperless, digital access to product documentation. You can obtain the detailed
operating manual and a data sheet for the HDA 7400 by reading the QR code or at
www.hydac.com.
Safety notice
Before commissioning, check the instrument and any accessories supplied.
Before starting
up
the device, read the detailed operating instructions and make sure that the device is
suitable for your application.
Incorrect handling or non-compliance with the instructions for use or the
technical specifications can lead to property damage and / or personal injury.
Exclusion of liability
This quick guide only provide brief operating and set up specifications for experienced users,
so knowledge of the comprehensive operating manual is essential when using the device for
the first time. Liability for incorrect installation or improper use of the device is not accepted.
In the case of translation, only the text of the original German operating manual is legally
valid.
Brief description of the series HDA 7400
Depending on the model, the device offers the following functions:
Pressure measurement in different pressure levels in the range of 0 .. 40 bar up to
0 .. 600 bar
Very small, compact design for small installation spaces in mobile applications
2- and 3-conductor version for integration into modern controls (e.g. SPS) with various
commercially available, analog output signals (mA or V)
Various electrical connectors and cable solutions are available.
Scope of delivery
The device is delivered with factory settings without accessories. This quick guide is
supplemented by a detailed operating manual and a data sheet. Both documents are
available via the QR code or at www.hydac.com.
Assembly
Pressure transmitter of the HDA 7400 series can be fitted directly to the hydraulic system via
the threaded connection. The operating manual offers details for this.
For mechanical decoupling in the case of strong vibrations or knocks, the
pressure transmitter should be mounted by means of a clamp with rubber insert
and the hydraulic connection should be made via a Minimess hose.
The recommended mounting position is
-
vertical with the pressure connection
pointing upwards in hydraulic applications
-
vertical with the pressure connection
pointing downwards in pneumatic applications
i
