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NVD-111
User Manual
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Pepperl+Fuchs NVD-111 User Manual

ISO9001
MANUAL
Warning Device NVD-111
PROCESS AUTOMATION
Warning Device NVD-111
With regard to the supply of products, the current issue of the following document is applicable:
The General Terms of Delivery for Products and Services of the Electrical Industry, published by
Elektroindustrie (ZVEI) e.V.) in its most recent version as well as the supplementary clause:
"Expanded reservation of proprietorship"
Warning Device NVD-111
EN
Contents
1 Safety................................................................................... 2
1.1 General safety instructions ...........................................................................2
1.2 Used Symbols...............................................................................................2
1.3 Declaration of Conformity .............................................................................3
1.4 Intended Use ................................................................................................3
1.5 Maintenance.................................................................................................4
1.6 Delivery, Transport and Storage ...................................................................4
1.7 Installation and Commissioning ....................................................................4
1.8 Operation......................................................................................................5
1.9 Repair...........................................................................................................5
1.10 Disposal........................................................................................................5
1.11 Applied Standards and Directives.................................................................5
2 Product Specifications ...................................................... 6
2.1 Function........................................................................................................6
2.2 Product Program...........................................................................................7
2.3 Design and Dimensions................................................................................8
3 Installation ........................................................................ 12
3.1 Mounting of the Sensors .............................................................................12
3.2 Mounting the Warning Device.....................................................................20
3.3 Connection .................................................................................................21
4 Commissioning................................................................. 28
4.1 Configuring the Warning Device using DIP Switches..................................28
5 Operation .......................................................................... 32
5.1 Alarm Signals..............................................................................................32
5.2 Resetting the Alarm Signal..........................................................................33
5.3 Function Testing .........................................................................................34
6 Troubleshooting ............................................................... 35
6.1 Troubleshooting and Alarm States..............................................................35
6.2 Sensor Maintenance...................................................................................36
7 Technical Specifications ................................................. 37
7.1 Warning Device NVD-111...........................................................................37
7.2 Overflow Sensor KVF-O .............................................................................38
7.3 Fat Level Sensor KVF-F..............................................................................38
7.4 Fat Level Sensor FAU-104..........................................................................38
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Safety

1Safety

1.1 General safety instructions

Responsibility for planning, assembly, commissioning, operation, maintenance, and dismounting lies with the system operator.
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 the intended purpose must be observed. The devices are only approved for appropriate and intended use. Ignoring these instructions will void any warranty and absolve the manufacturer from any liability.
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 an imminent danger.
Non-observance will result in personal injury or death.
Warni ng!
This symbol indicates a possible fault or danger.
Non-observance may cause personal injury or serious property damage.
Caution!
This symbol indicates a possible fault.
Non-observance could interrupt devices and any connected facilities or systems, or result in their complete failure.
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ISO9001
Safety
Informative Symbols
Note!
This symbol brings important information to your attention.
Action
This symbol indicates a paragraph with instructions.

1.3 Declaration of Conformity

All products were developed and manufactured under observance of the applicable European standards and guidelines.
Note!
A Declaration of Conformity can be requested from the manufacturer.
The product manufacturer, Pepperl+Fuchs GmbH, 68307 Mannheim, has a certified quality assurance system that conforms to ISO 9001.

1.4 Intended Use

The warning device is a compact alarm system for monitoring one or two sensors in grease interceptors.
The warning devices must only be installed in a suitable control cabinet or NVO5-KV installation housing.
The warning device was designed for:
n the monitoring of the fat layer thickness, i. e. an alarm if a certain limit of
maximum receptacle capacity of fat has been reached.
n the monitoring of the overflow of liquid, e. g. in the event of a blocked drain
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Safety
Only the following sensors must be connected to the warning device:
Description Type code
Fat level sensor, for detecting fat layer thickness in an aqueous emulsion with small lumps of fat or a hardened layer of fat
Fat level sensor, for detecting fat layer thickness in a liquid layer of fat KVF-F
Overflow sensor, for detecting excessively high liquid level KVF-O
1.4.1 Designation
Warning device
Pepperl+Fuchs GmbH
Lilienthalstrasse 200, 68307 Mannheim, Germany
NVD-111

1.5 Maintenance

The device must not be cleaned with caustic fluids.
The devices are maintenance-free. However, to guarantee perfect operation of the complete alarm system, check the operation, including all sensors, at least once a year.

1.6 Delivery, Transport and Storage

Check the packaging and contents for damage.
Check if you have received every item and if the items received are the ones you ordered.
Keep the original packaging. Always store and transport the device in the original packaging.
Always store the device in a clean and dry environment. The permitted storage temperature (see data sheet) must be considered.

1.7 Installation and Commissioning

1.7.1 Installation of the warning device
The device must only be installed outside potentially explosive zones. The device must not be installed in places with potentially aggressive vapors.
The device must be free of voltage during installation and maintenance. The warning system must only be connected to the supply voltage after complete mounting and connection of the sensors.
The identification plate must not be removed.
FAU-104
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Warning Device NVD-111
Safety

1.8 Operation

1.8.1 Availability of Emulsion
Grease interceptors are plants which can separate fat from water. It may occur that fat is not separated due to the emulsion that has formed. An emulsion is a more or less stable mixture of fat and water. If the water content in the fat is too high, the sensor does not detect any fat.

1.9 Repair

The devices must not be repaired, changed or manipulated. If there is a defect, the product must always be replaced with an original device.

1.10 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.

1.11 Applied Standards and Directives

EN 50178:1997
EN 61000-6-4:2007
EN 61326-1:2013
EMC Directive 2004/108/EC
Low Voltage Directive 2006/95/EC
EN
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Product Specifications

2 Product Specifications

2.1 Function

The warning device monitors the status of
n a fat level sensor or n an overflow sensor or n the combination of an overflow sensor and a fat level sensor
in a grease interceptor.
LEDs at the device indicate alarm, sensor fault and system and sensor status. In the event of an alarm, an additional acoustic signal sounds.
The fat in the grease interceptor can be of various compositions. The following conditions are possible:
n The fat is liquid. Such fat is found in, e. g., the manufacture and storage of
vegetable fats. This fat forms a liquid fat layer which clearly separates from water. For this composition of fat, please use fat level sensor KVF-F for detecting the fat layer thickness.
n The fat is hard. Such fat is found in, e. g., waste water from sinks or
dishwashers and in floor drains in large kitchens or catering establishments. This fat consists of a mixture of animal and vegetable fats. It typically forms an aqueous emulsion with small lumps of fat or a hardened layer of fat. For this composition of fat, please use fat level sensor FAU-104 for detecting the fat layer thickness.
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Product Specifications

2.2 Product Program

Warn ing device
Description Type code
Warning device, 230 V AC NVD-111
Sensors
Description Type code
Fat level sensor, for detecting fat layer thickness in an aqueous emulsion with small lumps of fat or a hardened layer of fat
Fat level sensor, for detecting fat layer thickness in a liquid layer of fat KVF-F
Overflow sensor, for detecting excessively high liquid level KVF-O
Accessories
Description Type code
Cable connector IP68 for one sensor LAL-SK2
Mounting set for one sensor NVO5-B
Installation housing with DIN mounting rail NVO5-KV
FAU-104
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Warning Device NVD-111
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NVD-111
ALARM RESET
SUPPLY FAT LAYER
ALARM
OVERFLOW
ALARM
SYSTEM
OK
68307 Mannhei m Ge r m a ny www.pepper l-f uchs. com
Fat Alarm System
70
58
86
54
4
23
5
1
200
116 105
Product Specifications

2.3 Design and Dimensions

Warning device NVD-111
Figure 2.1
1 DIP switches
2 LEDs
3 Connections for power supply and potential-free contacts
4 Reset button
5 Sensor connections
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Installation housing NVO5-KV
Figure 2.2
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Product Specifications
Overflow sensor KVF-O
Ø31.6
3
5
2
1
4
25
138
Figure 2.3
1 Lower section with laser marking
2 Middle section
3 Upper section
4 Cable
5 Switching point
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Product Specifications
Fat level sensor KVF-F
Ø31.6
5
4
3
2
1
Figure 2.4
1 Lower section with laser marking
2 Middle section
3 Upper section
4 Cable
5 Shrink tubing
6 Switching point
300
25
6
138
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4
3
2
1
5
6
152
300
Ø38
66
Product Specifications
Fat level sensor FAU-104
Figure 2.5
1 Lower section
2 Laser marking
3 Cable
4 Shrink tubing
5 Reflectors
6 Schwitching point
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