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

Pepperl+Fuchs NVD-111 Manual

Warning device
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PROCESS AUTOMATION
MANUAL
Warning Device
NVD-111
ISO9001

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Summary of Contents for Pepperl+Fuchs NVD-111

  • Page 1 PROCESS AUTOMATION MANUAL Warning Device NVD-111 ISO9001...
  • Page 2 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 the Central Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most recent version as well as the supplementary clause:...

  • Page 3: Table Of Contents

    Warning Device NVD-111 Contents 1 Safety................... 2 General safety instructions ................2 Used Symbols....................2 Declaration of Conformity ................3 Intended Use ....................3 Maintenance ....................4 Delivery, Transport and Storage ..............4 Installation and Commissioning ..............4 Operation......................5 Repair ......................5 1.10 Disposal......................5 1.11 Applied Standards and Directives..............5 2 Product Specifications ............

  • Page 4: Safety

    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. Used Symbols Safety-relevant Symbols Danger! This symbol indicates an imminent danger.

  • Page 5: 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. ISO9001 Intended Use The warning device is a compact alarm system for monitoring one or two sensors in grease interceptors.

  • Page 6: Maintenance

    Warning Device NVD-111 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 FAU-104 emulsion with small lumps of fat or a hardened layer of fat...

  • Page 7: Operation

    Warning Device NVD-111 Safety 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.

  • Page 8: Product Specifications

    Warning Device NVD-111 Product Specifications Product Specifications Function The warning device monitors the status of a fat level sensor or an overflow sensor or 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.

  • Page 9: Product Program

    Warning Device NVD-111 Product Specifications Product Program Warning 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 FAU-104 emulsion with small lumps of fat or a hardened layer of fat...

  • Page 10: Design And Dimensions

    Warning Device NVD-111 Product Specifications Design and Dimensions Warning device NVD-111 ALARM SUPPLY SYSTEM OVERFLOW FAT LAYER RESET ALARM ALARM NVD-111 Fat Alarm System 68307 Mannheim Germany www.pepperl-fuchs.com Figure 2.1 DIP switches LEDs Connections for power supply and potential-free contacts...
  • Page 11 Warning Device NVD-111 Product Specifications Overflow sensor KVF-O Ø31.6 Figure 2.3 Lower section with laser marking Middle section Upper section Cable Switching point EN - 9...
  • Page 12 Warning Device NVD-111 Product Specifications Fat level sensor KVF-F Ø31.6 Figure 2.4 Lower section with laser marking Middle section Upper section Cable Shrink tubing Switching point 10 - EN...
  • Page 13 Warning Device NVD-111 Product Specifications Fat level sensor FAU-104 Ø38 Figure 2.5 Lower section Laser marking Cable Shrink tubing Reflectors Schwitching point EN - 11...

  • Page 14: Installation

    Warning Device NVD-111 Installation Installation Mounting of the Sensors Read the chapter on Safety and, in particular, the section on Installation and Commissioning (see chapter 1.7) before mounting the sensor. Do not remove the identification plate. Warning! Risk of short circuit Injuries and damage to the device are possible when working with live parts.
  • Page 15 Warning Device NVD-111 Installation Figure 3.1 Mounting using cable connector and mounting set Mounting set for one sensor NVO5-B Cable connector for one sensor LAL-SK2 3.1.1 Mounting the KVF-O Overflow Sensor Usually, the switching point of the sensor must be located a few centimeters above the normal liquid level (water zero line) in a position so close to the water zero line that the switching point is surrounded by liquid when an overflow occurs.
  • Page 16 Warning Device NVD-111 Installation Figure 3.2 Mounting the overflow sensor Overflow sensor KVF-O Fat, oil, grease (FOG) Water Water zero line Sensor switching point Alarm limit (maximum liquid level) If a non-electrically conductive fat layer settles on the surface, there is a risk that a possible overflow will not be detected by the sensor.
  • Page 17 Warning Device NVD-111 Installation Figure 3.3 Mounting the overflow sensor KVF-O with pitot tube Overflow sensor KVF-O Fat, oil, grease (FOG) Water Open pitot tube (not supplied) Water zero line Sensor switching point Alarm limit (maximum liquid level) EN - 15...
  • Page 18 Warning Device NVD-111 Installation 3.1.2 Mounting the KVF-F Fat Level Sensor The sensor must be immersed a few centimeters when the liquid is at its normal level (water zero line). The exact immersion depth depends on the type of grease interceptor,...
  • Page 19 Warning Device NVD-111 Installation Figure 3.4 Mounting the fat level sensor Fat level sensor KVF-F Shrink tubing Fat, oil, grease (FOG) Water Water zero line Sensor switching point Alarm limit (maximum fat layer thickness) EN - 17...
  • Page 20 Warning Device NVD-111 Installation 3.1.3 Mounting the FAU-104 Fat Level Sensor The sensor must be immersed a few centimeters when the liquid is at its normal level (water zero line). The exact immersion depth depends on the type of grease interceptor, its design and the height of the maximum fat layer thickness.
  • Page 21 Warning Device NVD-111 Installation Figure 3.5 Mounting the fat level sensor Fat level sensor FAU-104 Shrink tubing Fat, oil, grease (FOG) Water Water zero line Sensor switching point Alarm limit (maximum fat layer thickness) EN - 19...

  • Page 22: Mounting The Warning Device

    Warning Device NVD-111 Installation Mounting the Warning Device Note! If installing the device in an enclosure or switch cabinet, follow the mounting instructions provided by the manufacturer of the enclosure or switch cabinet. Caution! Malfunction or damage resulting from overheating If the external temperature exceeds 60 °C at maximum load, the device may...

  • Page 23: Connection

    Warning Device NVD-111 Installation Connection Read the chapter on Safety and, in particular, the section on Installation and Commissioning (see chapter 1.7) before installing the device. Do not remove the identification plate. Warning! Risk of short circuit Injuries and damage to the device are possible when working with live parts.
  • Page 24 Warning Device NVD-111 Installation Connecting and configuring the warning device with overflow sensor KVF-O 1 2 3 5 6 7 10 11 12 230 V AC Figure 3.7 Overflow sensor connection Overflow sensor KVF-O DIP switches Power supply bu blue...
  • Page 25 Warning Device NVD-111 Installation Connecting and configuring the warning device with fat level sensor KVF-F 1 2 3 5 6 7 10 11 12 230 V AC Figure 3.8 Fat level sensor connection Fat level sensor KVF-F DIP switches Power supply...
  • Page 26 Warning Device NVD-111 Installation Connecting and configuring the warning device with fat level sensor FAU-104 1 2 3 5 6 7 10 11 12 230 V AC Figure 3.9 Fat level sensor connection Fat level sensor FAU-104 DIP switches Power supply...
  • Page 27 Warning Device NVD-111 Installation Connecting and configuring the warning device with overflow sensor KVF-O and fat level sensor KVF-F 1 2 3 5 6 7 10 11 12 230 V AC Figure 3.10 Overflow sensor connection Fat level sensor connection...
  • Page 28 Warning Device NVD-111 Installation Connecting and configuring the warning device with overflow sensor KVF-O and fat level sensor FAU-104 1 2 3 5 6 7 10 11 12 230 V AC Figure 3.11 Overflow sensor connection Fat level sensor connection...
  • Page 29 Warning Device NVD-111 Installation The product is a Class II device (with reinforced insulation). Connect the power supply as follows: Terminal 7: phase (F/L2) Terminal 6: zero (N/L1) Terminal 5: ground (loop terminal) Note! Additional relays can be connected via terminals 1 to 3 and 10 to 12. They can be used, for example, for an external alarm or the connection to a central monitoring system.

  • Page 30: Commissioning

    Warning Device NVD-111 Commissioning Commissioning Configuring the Warning Device using DIP Switches Often, suspended particles (e. g. leftovers) can be found in the grease interceptor and lumps of fat often form. These suspended particles and lumps of fat can cause a false alarm for the fat level sensor. Therefore, it is possible to set two possible monitoring states for the fat level sensor on the warning device via the setting of DIP switch 1 (reaction time of the fat level sensor).
  • Page 31 Warning Device NVD-111 Commissioning Switch setting ON – operating mode The reaction time for detection of a fat layer is 24 hours (warning device in normal mode, green "SYSTEM OK" LED lights up). The device becomes active only after the fat level sensor has remained in a fat layer undisturbed for a period of 24 hours.
  • Page 32 Warning Device NVD-111 Commissioning Switch setting OFF – service/test mode After switching on the warning device or after switching the DIP switch from ON to OFF, an alarm is detected immediately and the warning device displayed. The DIP switches are located on the right of the device (see chapter 2.3).
  • Page 33 Warning Device NVD-111 Commissioning The following table contains a list of possible configuration settings. Switches Description DIP 1 Reaction time (reaction Operating mode – delay of the sensor reaction time of the fat level Service/test mode – instant sensor reaction...

  • Page 34: Operation

    Warning Device NVD-111 Operation Operation Alarm Signals The warning device indicates an alarm status or sensor fault both visually and acoustically. The respective “OVERFLOW ALARM” or “FAT LAYER ALARM” LEDs are illuminated until the system returns to a normal status.

  • Page 35: Resetting The Alarm Signal

    Warning Device NVD-111 Operation Resetting the Alarm Signal There are two options available to reset the alarm. Briefly press the “ALARM RESET” button The acoustic alarm is switched off. The potential-free relay is reset. Press and hold the “ALARM RESET” button (for approx. 3 to 4 seconds) Combined test and reset function The test function is started by pressing and holding the button.

  • Page 36: Function Testing

    Warning Device NVD-111 Operation Function Testing Fat level sensors Checking the normal status Checking the normal status for fat level sensor KVF-F 1. Switch DIP switch 1 to position OFF. 2. Remove the sensor from the grease interceptor. 3. Wash and dry the sensor.

  • Page 37: Troubleshooting

    Warning Device NVD-111 Troubleshooting Troubleshooting Troubleshooting and Alarm States Note! If switched on (“Acoustic alarm” DIP switch) an acoustic signal sounds in the event of an alarm and sensor malfunction. LED indication Cause Action All LEDs are off. The warning device is Check that the supply voltage is connected.

  • Page 38: Sensor Maintenance

    Warning Device NVD-111 Troubleshooting Sensor Maintenance Caution! Malfunction or false alarm caused by a contaminated sensor If the sensor is very dirty, this may trigger a false alarm or mean that no alarm is triggered under certain circumstances. Clean and dry the sensor when emptying/disposing of the oil/petrol separator or container.

  • Page 39: Technical Specifications

    Warning Device NVD-111 Technical Specifications Technical Specifications Warning Device NVD-111 Power supply Rated voltage 230 V AC ± 10%, 50 Hz … 60 Hz Power consumption 4.5 VA … 6 VA Max. fusing 10 A Overvoltage category Connection terminals 5, 6, 7...

  • Page 40: Overflow Sensor Kvf-O

    Warning Device NVD-111 Technical Specifications Overflow Sensor KVF-O Power supply Rated voltage 13 V DC Ambient conditions Ambient temperature -20 °C … 60 °C (253 K … 333 K) Mechanical specifications Protection degree IP68 Connection cable Material stainless steel Cable Mass approx.
  • Page 41 PROCESS AUTOMATION – PROTECTING YOUR PROCESS Worldwide Headquarters Pepperl+Fuchs GmbH 68307 Mannheim · Germany Tel. +49 621 776-0 E-mail: info@de.pepperl-fuchs.com For the Pepperl+Fuchs representative closest to you check www.pepperl-fuchs.com/contact www.pepperl-fuchs.com Subject to modifications Copyright PEPPERL+FUCHS • Printed in Germany 266859 DOCT-1951A 04/2014...

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