HDA 4000W intrinsically safe, non-sparking, dustproof enclosure: ATEX and IECEx
5
Status: 2021-11-22
HYDAC ELECTRONIC GMBH
Part
no.: 670063
1
General
If you have any queries regarding technical details or the suitability of the unit for your application,
please contact our
Technical Sales Department
. The HDA 4700 Bluetooth 4.0 LE pressure
transmitter series 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 including the ATEX and IECEx
approvals.
2
Exclusion of liability
These operating instructions were made to the best of our knowledge. Nevertheless and despite
the greatest care, it cannot be excluded that mistakes could have crept in. Therefore please
understand that in the absence of any provisions to the contrary hereinafter our warranty and
liability
– for any legal reasons whatsoever – are excluded in respect of the information in this
instruction manual.
In particular, we shall not be liable for lost profit or other financial loss. This exclusion of liability
does not apply in cases of intent or gross negligence. Moreover, it does not apply to defects which
have been deceitfully concealed or whose absence has been guaranteed, nor in cases of culpable
harm to life, physical injury and damage to health. If we negligently breach any material contractual
obligation, our liability shall be limited to foreseeable damage. Claims due to the product liability
shall remain unaffected.
In cases where the translation is used, the text of the original German Operating Instructions shall
prevail.
3
Function
The pressure signal measured by the sensor is converted internally into a pressure proportional
signal. This can be either received using the configurable measuring rate via bluetooth or recorded
in the sensor. Once the recording has terminated, it can be transmitted via the bluetooth interface.
The power supply is provided by two AA batteries.
4
Installation and commissioning
The pressure transmitters can be mounted directly on the process side via their threaded
connection. Please ensure that the membrane is protected from mechanical damage during
installation.
In order to prevent mechanical damage when dealing with critical applications involving heavy
vibrations or blows, for example, we recommend securing the unit with an elastomer clamp and
decoupling the hydraulic ports via a Minimess hose.
Tightening torque, see Dimensions.
Pressure transmitters provide for pressure equalisation with the ambient pressure. A small bore
hole for this purpose is located in the centre of the battery cover. The connector is covered by a
special membrane from the inside which prevents moisture from seeping into the unit from the
outside. In order to prevent the bore hole from becoming clogged, mounting should be carried out
in a suitable way to protect the hole from contamination due to humid and dusty environmental
conditions.
Connection must be carried out by a properly qualified specialist in accordance with the regulations
pertaining to potentially explosive atmospheres (e.g. IEC / EN 60079-14).
