Pepperl+Fuchs NVF-112-0400 Bedienungsanleitung
0102
ISO9001
NVF-112-0400
LEVEL SENSOR
FÜLLSTANDSSENSOR
CAPTEUR DE NIVEAU
NIVEAUFØLER
PROCESS AUTOMATION
MANUAL
With regard to the supply of products, the current issue of the following docu-
ment is applicable: The General Terms of Delivery for Products and Services of
the Electrical Industry, published by the Central Association of the Electrical In-
dustry (Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its
most recent version as well as the supplementary clause: "Expanded reserva-
tion of proprietorship"
Es gelten die Allgemeinen Lieferbedingungen für Erzeugnisse und Leistungen
der Elektroindustrie, herausgegeben vom Zentralverband Elektroindustrie
(ZVEI) e.V. in ihrer neusten Fassung sowie die Ergänzungsklausel: "Erweiterter
Eigentumsvorbehalt".
Les conditions de vente générales pour les produits et les services de l'industrie
des équipements électriques publiées par la Fédération de l'industrie électron-
ique (ZVEI) s'appliquent dans leur toute dernière version, tout comme la clause
complémentaire "Réserve de propriété élargie".
De almene leveringsbetingelser for produkter og ydelser fra elektronikindus-
trien, der er udgivet af Zentralverband Elektroindustrie (ZVEI) e.V. i den seneste
udgave samt tillægsklasulen: "Udvidet ejendomforbehold" er gældende".
LEVEL SENSOR
LEVEL SENSOR
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EN
1 Safety .............................................................................2
1.1 General .........................................................................................................2
1.2 Used Symbols..............................................................................................2
1.3 Declaration of Conformity ..........................................................................3
1.4 Intended use ................................................................................................3
1.4.1 Identification ..................................................................................................3
1.5 Delivery, Transport and Storage.................................................................4
1.6 Installation and Commissioning ................................................................4
1.6.1 Installing the sensor ......................................................................................4
1.6.2 Installation in connection with intrinsically safe circuits .................................4
1.6.3 Sensor cable .................................................................................................4
1.7 Maintenance.................................................................................................5
1.8 Repair ...........................................................................................................5
1.9 Disposal .......................................................................................................5
1.10 Applied standards and directives..............................................................5
2 Product Specifications .................................................6
2.1 Function .......................................................................................................6
2.2 Layout and dimensions ..............................................................................7
2.3 Product program .........................................................................................8
3 Installation.....................................................................9
3.1 Mounting in containers or tanks................................................................9
3.2 Electrical connection .................................................................................9
4 Troubleshooting.......................................................... 10
4.1 System care ............................................................................................... 10
5 Technical specifications ............................................ 11
5.1 Sensor NVF-112-0400 ................................................................................ 11
Level sensor
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LEVEL SENSOR
Safety
EN
1 Safety
1.1 General
The operator of the system is responsible in terms of planning, mounting, commissioning,
operating and maintenance.
Installation and commissioning of all devices must be performed by a trained professional only.
Protection of operating personnel and the system is not ensured if the product is not used in
accordance with its intended purpose.
Laws and regulations applicable to the usage or planned purpose of usage must be observed.
Devices are only approved for proper usage in accordance with intended purpose. Improper
handling will result in voiding of any warrantee or manufacturer's responsibility.
The Declaration of Conformity, Certificate of Compliance, Statement of Conformity, EC-type-
examination certificate and data sheets are an integral part of this document.
The data sheet contains the electrical data of the Declaration of Conformity, the Certificate of
Compliance and the EC-type-examination certificate.
The documents mentioned are available from http://www.pepperl-fuchs.com or contact your
local Pepperl+Fuchs representative.
1.2 Used Symbols
Safety-relevant Symbols
Danger!
This symbol indicates a warning about a possible danger.
In the event the warning is ignored, the consequences may range from personal injury to death.
Warning!
This symbol indicates a warning about a possible fault or danger.
In the event the warning is ignored, the consequences may course personal injury or heaviest
property damage.
Caution!
This symbol warns of a possible fault.
Failure to observe the instructions given in this warning may result in the devices and any
connected facilities or systems develop a fault or fail completely.
Level sensor
LEVEL SENSOR
Safety
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Informative Symbols
Action
This symbol marks an acting paragraph.
1.3 Declaration of Conformity
All products have been developed and manufactured taking into consideration applicable
European standards and regulations.
The manufacturer of this product, Pepperl+Fuchs GmbH in D-68301 Mannheim, Germany, has
a certified quality assurance system in conformity with ISO 9001.
1.4 Intended use
The level sensor NVF-112-0400 (referred to as "sensor" in the following sections) is designed to
prevent containers or tanks containing flammable liquids such as petrol and oil from
overflowing.
The sensor NVF-112-0400 must always be connected to an ATEX-approved, intrinsically safe
warning device of type NVO5-11 (see product program).
1.4.1 Identification
Note!
This symbol brings important information to your attention.
Note!
A Declaration of Conformity can be requested from the manufacturer.
ISO9001
Level sensor
Pepperl+Fuchs GmbH
68301 Mannheim/ Germany
NVF-112-0400
DEMKO 07 ATEX 142588
II 1G Ex ia IIB T3
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LEVEL SENSOR
Safety
EN
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.
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.
LEVEL SENSOR
Safety
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1.7 Maintenance
When operating containers or tanks filled with flammable fluids, observe any standards,
directives or laws that stipulate the need for regular system inspections or sensor checks.
1.8 Repair
The devices may not be repaired, changed or manipulated. If there is a defect, the product
must always be replaced with an original part.
1.9 Disposal
Disposal of devices and their packaging material must be performed in compliance with the
applicable laws and guidelines of the corresponding country.
The devices do not contain batteries which need to be disposed of separately from the
products.
1.10 Applied standards and directives
EN 50014
EN 50020
EN 50178
EN 60079-14
EN 61000-6-2
EN 61000-6-3
ATEX Directive 94/9/EC
EMC Directive 89/336/EEC
Low Voltage Directive 73/23/EEC
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LEVEL SENSOR
Product Specifications
EN
2 Product Specifications
2.1 Function
The sensor is designed for use with oil products.
The level sensor is a PTC resistor sensor. It is energized via an intrinsically safe relay.
The PTC resistor warms up if it is enclosed by air and, at the same time as falling current, the
ohmic resistance in the PTC resistor sensor increases. The intrinsically safe relay is in normal
status.
If the PTC resistor is enclosed by liquid, it does not heat up and the current increases. The
intrinsically safe relay switches to alarm position.
The sensor can distinguish between liquid and air.
Caution!
Malfunction or damage through the use of the sensor as a level sensor in glues and paints
Glues and paints can coagulate when heated and stick to the sensor. This can impair the
properties of the sensor during temperature change and the safety and operation of the sensor,
or the complete alarm system, is no longer guaranteed.
Do not use the sensor as a level sensor in glues and paints or in liquids with similar properties.
Caution!
Malfunction or damage through the use of the sensor NVF-112-0400 as a level sensor in water
and other conductive fluids
The sensor will be damaged due to the conductivity nature of the liquid and the operation of the
complete alarm system is no longer guaranteed.
Do not use the sensor as a level sensor in water and other conductive liquids.
Level sensor
LEVEL SENSOR
Product Specifications
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2.2 Layout and dimensions
The level sensor NVF-112-0400 is a rod sensor with connection head. The PTC resistor sensor
is sealed in a plastic tube at the end of the brass tube. The rod sensor is mounted to the
container or tank via a process connector with ½¨ external thread.
The switching point of the level sensor is at the same level as the 5 mm bore on the plastic
tube.
1Connection head
2Process connection with screw connection ½¨
3Brass tube, length 400 mm
4Sensor sealed in plastic tube
5Switching point
400
Ø18
PG16
R½
1
2
3
4
5
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LEVEL SENSOR
Product Specifications
EN
2.3 Product program
Warning device
Sensor
Description Type code
Intrinsically safe warning device, 230 V AC NVO5-11
Description Type code
Level sensor, for detecting excessive liquid levels NVF-112-0400
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