Delivery, Transport And Storage; Installation And Commissioning; Installing The Sensor; Installation In Connection With Intrinsically Safe Circuits - Pepperl+Fuchs NVF-112-0400 Manual

LEVEL SENSOR
Safety
1.5

Delivery, Transport and Storage

Check the packaging and contents for damage. In the event of damage, notify the postal
service or express agent and inform the supplier.
EN
Check the scope of supply for completeness and correctness using the order and delivery
papers.
Keep the original packaging.
The device should always be stored or transported in the original packaging.
Always store the device in a dry and clean environment. Observe the permissible storage
temperature (see data sheet).
1.6

Installation and Commissioning

1.6.1

Installing the sensor

The sensor may be installed in potentially explosive zone 0 in accordance with Directive
94/9/EC (ATEX). The sensor must not be installed in places with potentially aggressive vapors.
The sensor and warning device must be free of voltage during installation and maintenance.
The warning device must only be connected to the supply voltage once the sensors are
mounted and connected properly.
The identification plate is part of the product and should not be removed.
The sensor has IP54 protection at the connection head side and IP68 protection at the
container or tank side and is weather and oil-resistant.
When installing the device in the container or tank, observe the permissible ambient
temperature in the range from -20 °C ... 60 °C (253 K ... 333 K).
1.6.2

Installation in connection with intrinsically safe circuits

Installation of the intrinsically safe power circuits of the devices is permitted in potentially
explosive zones, whereby, in particular, safe separation from all non-intrinsically safe power
circuits must be guaranteed.
The intrinsically safe current circuits must be installed according to valid setup regulations.
For the interconnection of the intrinsically safe field devices and the intrinsically safe power
circuits of the associated devices, the respective maximum values of the field device and the
associated device with regard to explosion protection must be observed (proof of intrinsic
safety). EN 60079-14/IEC 60079-14 must be observed.
1.6.3

Sensor cable

Sensor cables must not be installed in cable or conductor bundles together with other current
circuits. Avoid installing sensor cables parallel to other cables that may transmit interfering
signals, which impair the sensor signal and thus the alarm function
If you extend the sensor cable, observe the applicable ATEX specifications with regard to color,
quality and constancy. Use an unscreened cable with a conductor size of 1 mm².
4 - EN