WIKA Hydra-Gauge - Manual (Page 9)

WIKA operating instructions HYDRA-Gauge 9
9015329.01 08/2013 GB/D/F/E
GB
6. Commissioning ... / 7. HYDRA-Gauge with switch contacts
After installation the pressure gauge may
be turned by hand in order to get an optimal
read-off position.
A pressure measuring instrument with the option of an electrical contact must be
connected in accordance with the connection diagram on the instrument.
For further information see data sheet AC 08.01
360°
7. HYDRA-Gauge with switch contacts
When using the HYDRA-Gauge pressure measuring assemblies with model 830 E
electronic contacts, observe the following:
7.1 Description, application
Direct switching of small capacities which are usually required in connection with a PLC
can be realised by the inductive contact with integrated switching amplifier, which is
factory-installed directly into the measuring instrument.
The familiar advantages with inductive contacts, such as an especially safe contact
operation, no wear at all by proximity contact operation as well as virtually no reaction
on the measuring system, thus enabling the accuracy of the indication, are used in this
context, too.
An additional control unit is not required.
The electronic contact with 3-wire design is realised with a PNP output. The operating
voltage is DC 10 ... 30 V. The maximum switching current is 100 mA.
The model 830 E is not intrinsically safe and therefore not suitable for applications in
hazardous areas!