PROCESS AUTOMATION Protection for the environment ALARM SYSTEMS FOR SEPARATORs PRODUCT OVERVIEW
warning devices for separator systems Detects dangers to protect the environment Water is the basis of all life and is a valuable resource that must be protected from contamination. The protection of ground water and the drainage system against contamination from mineral oils is essential. In garages, service stations and in industrial processes, light liquid separators, i.e. oil separators, prevent harmful substances from escaping uncontrolled into the environment and polluting the hydrological cycle. However, installing an oil separator alone does not solve the problem completely. A system must be checked regularly and monitored continually in order to ensure that it operates reliably. This is the only way that one can effectively prevent environmental damage and avoid associated liability risks. Comprehensive monitoring of a system is only possible using electronic warning devices that are designed to detect a critical operating status of the separator and trigger an alarm before any harm can come to the environment. These requirements are defined in European Standard EN 858-1 and simultaneously form the basis for the CE mark on oil and petrol separators. European standard EN 858-1 defines the criteria for a device that triggers an alarm if the light liquid or waste water level is too high or the waste water level is too low. These warning devices are described as follows: Device to warn of excessive depth of light liquid or waste water or low level condition. Under point 6.5.4 Automatic warning devices and additional devices is written: Automatic warning devices and auxiliary devices. Separator systems shall be provided with automatic warning devices. In order to ensure appropriate monitoring, warning devices developed by Pepperl+Fuchs for separator systems can be combined with a variety of sensors. These are positioned in the separator hanging from a pre-installed five meter cable. All sensors have ATEX approval and are suitable for installation in hazardous areas. They are compact and robust, and do not incorporate moving parts. For areas where there are no people or supply voltage, a system with alarm trip offers a protective function via the GSM mobile phone network around the clock. 2
contents WARNING SYSTEM WITH ACOUSTIC AND VISUAL ALARM Warning device LAL-SRW and warning device LAL-SRW3 GSM warning device with SMS alarm Warning device LAL-A6- GSM-EX3, Warning device LAL-A8-GSM-EX3, Warning device LAL-D2-GSM-EX3 Model overview and Accessories Warning devices LAL-SRW and LAL-SRW3 Accessories: cable connector, connecting socket, wall-mounted enclosure, Mounting set Complete warning device sets for oil and petrol separators Warning devices with GSM modem (message via SMS) Warning device for grease interceptors Complete warning device sets for grease interceptors P. 04 P. 06 P. 08 P. 08 P. 09 P. 10 P. 11 P. 11 3
WARNING SYSTEM WITH ACOUSTIC AND VISUAL ALARM Compact intelligence The LAL-SRW warning device for oil and petrol separators is extremely compact and can be mounted in a wall box or on DIN mounting rails in any control cabinet. The device is available for 2 or 3 sensors (LAL-SRW or LAL-SRW3) and guarantees the comprehensive, reliable monitoring of light liquid separators. When a connected sensor sends a signal indicating that the operating status of the separator is critical, the control unit triggers an acoustic and visual alarm. Built-in reliability If the cause of the alarm is ignored after the reset button is pressed, the alarm is repeated after 24 hours for safety reasons. All connected cables are also continually monitored in addition to the sensors. In the event of a short circuit or broken cable, an acoustic and visual alarm are triggered. Remote monitoring via a decentralized alarm sensor is also possible. LAL-SRW / LAL-SRW3 4
Sensors and applications Layer thickness sensor The capacitive sensor KVF-104-PF can distinguish between oil/petrol and water. If the layer thickness exceeds a defined maximum value, the incoming signal is sent to the LAL-SRW control unit, where it is evaluated and an alarm is triggered. Thus a too large thickness of the oil layer of a separator can be detected reliably and penetration of oil into the sewer network can be prevented. Overflow sensor The NVF-104/34-PF overflow sensor is developed specially for distinguishing air from liquid. If the fluid level exceeds a defined value, the incoming signal is also sent to the LAL-SRW control unit and an alarm is triggered. This method can also be used to reliably determine whether a coalescence filter is clogged to prevent overflowing and resulting environmental damage. Sludge level sensor The SLU-103-PF sludge level sensor serves to differentiate between sludge and fluid as well as monitor the sludge level in the sludge trap or an oil separator. An alarm is triggered when a defined value is reached. This sensor detects whether the light liquid separator is already clogged with sludge. It can be reacted in time to protect the environment from hazardous substances. KVF-104-PF NVF-104/34-PF SLU-103-PF 5
GSM warning device with SMS alarm Individual configuration LAL-A6-GSM-EX3 The GSM warning system with SMS alarm is an efficient solution for monitoring oil and petrol separators. It is designed for applications where this type of monitoring was not previously possible for technical or financial reasons. The system ensures reliable remote monitoring around the clock and is also suitable for areas where persons are not constantly present. If an alarm status is present, a text message is generated and sent in an SMS to up to three mobile phones via the integrated GSM modem. This message is transmitted repeatedly at regular intervals until the cause of the alarm is rectified. Weekly status messages via SMS also provide a comprehensive overview of the status of the oil and petrol separator. The monitoring of the system is very flexible because it can be configured individually. Up to three different sensors can be connected to this warning device. For example, oil film, overflow or sludge level sensors can be installed together to provide a comprehensive protective function for the application in question. This system is also suitable for retrofitting because these three sensors can be easily connected via a conventional 2-wire cable. LAL-A8-GSM-EX3 APPLICATION ORIENTED ALARM SYSTEM There are three versions of alarm systems available, suitable for a wide variety of applications. LAL-D2-GSM-EX3 LAL-A6-GSM-EX3 GSM alarm system for 230 V AC supply voltage. LAL-A8-GSM-EX3 Self-sufficient GSM alarm system operated with batteries (6 x 1.5 V) for areas where a supply voltage is not available. LAL-D2-GSM-EX3 GSM alarm system for 12-30 V DC operation (in connection with solar collectors, for example). 6
Layer thickness sensor Overflow sensor Sludge level sensor sensors and applications Layer thickness sensor The LAL1-D-EX capacitive sensor measures the thickness of an oil film and detects a decreasing liquid level in an oil and petrol separator. If the sensor is located in water, the transmitted high-frequency signal is attenuated. However, if the sensor is surrounded by oil or air, this value changes, which indicates an alarm status. The sensor detects that the oil storage quantity has reached a maximum value, which would potentially damage the environment if exceeded. LAL1-D-EX Overflow sensor The LAL8-D-EX ultrasonic sensor is mounted hanging above the normal liquid level and responds when a closed automatic clousure device or clogged coalescence filter causes an overflow and triggers an alarm immediately. This reduces the risk of oil separators overflowing and oil products escaping into the ground. LAL8-D-EX Sludge level sensor The LAL9-D-EX ultrasonic sensor is designed for monitoring the sludge level in oil and petrol separators. The receiver detects a defined signal if the sensor is surrounded by fluid. If sludge, sand or metal particles obstruct the sludge level, an alarm situation is signaled to prevent the separator from becoming clogged with sludge and allowing harmful substances to escape into the environment. This keeps manual checks of the sludge level to a minimum. LAL9-D-EX All three sensors are robust and reliable and the omission of moving parts guarantees a high degree of reliability during operation. The compact design allows easier installation whatever the mounting conditions. 7
Model overview and accessories Warning devices LAL-SRW and LAL-SRW3 SENSORS Control units LAL-SRW LAL-SRW3 Control unit for oil and petrol separator Two channels for connecting oil or sludge level sensors and/or overflow sensors Sensor types: KVF-104-PF, SLU-103-PF and NVF-104/34-PF Visual and acoustic alarm Mounted on DIN rail Supply voltage 230 V AC Group, category, ignition protection class: II (1)G [Ex ia] IIB Control unit for oil and petrol separator Three channels, for connecting: Oil level sensor KVF-104-PF, overflow sensor NVF-104/34-PF and sludge level sensor SLU-103-PF or 2x oil level sensor KVF-104-PF and overflow sensor NVF-104/34-PF or 2x sludge level sensor SLU-103-PF and overflow sensor NVF-104/34-PF Visual and acoustic alarm Mounted on DIN rail Supply voltage 230 V AC Group, category, ignition protection class: II (1)G [Ex ia] IIB KVF-104-PF Capacitive sensor for monitoring the oil layer For connecting to control unit LAL-SRW and LAL-SRW3 With 5 m cable Group, category, ignition protection class: II 1G Ex ia IIB T3 SENSORS NVF-104/34-PF Thermal sensor for overflow monitoring For connecting to control unit LAL-SRW and LAL-SRW3 With 5 m cable Group, category, ignition protection class: II 1G Ex ia IIB T3 SLU-103-PF Ultrasonic sensor for sludge level monitoring For connecting to control unit LAL-SRW and LAL-SRW3 With 5 m cable Group, category, ignition protection class: II 1G Ex ia IIB T3 Accessories LAL-SK2 Cable connector for extending 2-wire sensor cables Suitable for Zone 0 Waterproof, IP68 protection Material resistant to mineral oil NVO5-KV Wall-mounted enclosure for Control unit DIN rail enclosure for wall mounting For control units LAL-SRW, LAL-SRW3 and NVD-111 Waterproof, IP65 protection NVO5-VD Connecting socket for two sensor cables For extending two sensor cables via a 4-wire cable Waterproof, IP67 protection Material resistant to mineral oil Group, category, ignition protection class: II 1G Ex ia IIB T3 NVO5-B Mounting kit for one sensor Consisting of: Mounting bracket, cable eye, screws and dowels 8
Warning device sets for oil and petrol separators LAL-SRW-01 Complete set for oil layer monitoring Control unit LAL-SRW Wall box NVO5-KV Oil layer sensor KVF-104-PF Cable connector LAL-SK2 Mounting bracket NVO5-B LAL-SRW-08 Complete set for overflow monitoring Control unit LAL-SRW Wall box NVO5-KV Overflow sensor NVF-104/34-PF Cable connector LAL-SK2 Mounting bracket NVO5-B Complete sets LAL-SRW-09 Complete set for sludge level monitoring Control unit LAL-SRW Wall box NVO5-KV Sludge level sensor SLU-103-PF Cable connector LAL-SK2 Mounting bracket NVO5-B LAL-SRW-18 Complete set for oil layer and overflow monitoring Control unit LAL-SRW Wall box NVO5-KV Overflow sensor NVF-104/34-PF Oil layer sensor KVF-104-PF Cable connector LAL-SK2 (2x) Mounting bracket NVO5-B (2x) LAL-SRW-189 Complete set for oil layer, overflow and sludge level monitoring Control unit LAL-SRW3 Wall box NVO5-KV Overflow sensor NVF-104/34-PF Oil layer sensor KVF-104-PF Sludge level sensor SLU-103-PF Cable connector LAL-SK2 (3x) Mounting bracket NVO5-B (3x) 9
Model overview Warning devices with GSM modem (message via SMS) Sensors LAL-A6-GSM-EX3 Control unit for oil and petrol separator for 230 V AC supply voltage With built-in GSM modem Sends SMS to up to three mobile phones With visual alarm Wall-mounted housing, IP67 protection Connection of three digital sensors, type: LAL1-D-EX, LAL8-D-EX and LAL9-D-EX Intrinsically safe, for mounting in the safe area Group, category, ignition protection class: II (1)G [Ex ia] IIB Supply voltage 230 V AC Control units LAL-A8-GSM-EX3 Control unit for oil and petrol separators with battery power supply With built-in GSM modem Sends SMS to up to three mobile phones With visual alarm Wall-mounted housing, IP67 protection Connection of three digital sensors, type: LAL1-D-EX, LAL8-D-EX and LAL9-D-EX Intrinsically safe, for mounting in the safe area Group, category, ignition protection class: II (1)G [Ex ia] IIB Power supplied from 6 x 1.5 V alkaline batteries inserted in the battery compartment (included with delivery) LAL-D2-GSM-EX3 Control unit for oil and petrol separator for 12 V DC 30 V DC supply voltage (e.g., solar panels) With built-in GSM modem Sends SMS to up to three mobile phones With visual alarm Wall-mounted housing, IP67 protection Connection of three digital sensors, type: LAL1-D-EX, LAL8-D-EX and LAL9-D-EX Intrinsically safe, for mounting in the safe area Group, category, ignition protection class: II (1)G [Ex ia] IIB Supply voltage 12 V DC 30 V DC LAL1-D-EX Digital sensors for monitoring the oil layer thickness For connecting to control unit LAL-XX-GSM-EX With 5 m cable, 2-wire Group, category, ignition protection class: II 1G Ex ia IIB T3 The delivery package contains: Cable connector LAL-SK2 and mounting bracket NVO5-B SENSORS LAL8-D-EX Digital sensor for monitoring overflow For connecting to control unit LAL-XX-GSM-EX With 5 m cable, 2-wire Group, category, ignition protection class: II 1G Ex ia IIB T3 The delivery package contains: Cable connector LAL-SK2 and mounting bracket NVO5-B LAL9-D-EX Digital sensor for monitoring the sludge layer For connecting to control unit LAL-XX-GSM-EX With 5 m cable, 2-wire Group, category, ignition protection class: II 1G Ex ia IIB T3 The delivery package contains: Cable connector LAL-SK2 and mounting bracket NVO5-B 10 Accessories for this warning devices please see page 8.
Warning system for grease Interceptors Control unit NVD-111 Control unit for monitoring grease interceptors Two channels for connecting grease layer and overflow sensors Sensor types: KVF-F or FAU-104 and/or KVF-O Visual and acoustic alarm Mounted on DIN rail Supply voltage 230 V AC FAU-104 Ultrasonic sensor for monitoring the grease layer (Predominant in grease interceptors in restaurants and large kitchens typically clot and solid grease) Distinguishes between fat clusters, remnants of food, and fat from water For connecting to control unit NVD-111 With 5 m cable Robust, no moving parts SENSORS KVF-F Capacitive sensor for monitoring the grease layer (Predominant in grease interceptors in industries that process vegetable oils typically floating grease) Distinguishes between oil and water For connecting to control unit NVD-111 With 5 m cable Robust, no moving parts KVF-O Capacitive sensor for monitoring the overflow in grease interceptors Distinguishes between water and air For connecting to control unit NVD-111 Robust, no moving parts Sets of warning devices for oil separator LAL-F-011 Complete set for monitoring the oil layer in oil separators Control device NVD-111 Wall box NV05-KV Oil layer sensor FAU-104 Cable connectors LAL-SK2 Mounting bracket NV05-B Complete sets KVF-O-CS Additional set for LAL-F-011 for overflow monitoring Overflow sensor KVF-O Cable connectors LAL- SK2 Mounting bracket NV05-B Accessories for this warning devices please see page 8. 11
process automation protecting your process For over a half century, Pepperl+Fuchs has been continually providing new concepts for the world of process automation. Our company sets standards in quality and innovative technology. We develop, produce and distribute electronic interface modules, Human-Machine Interfaces and hazardous location protection equipment on a global scale, meeting the most demanding needs of industry. Resulting from our world-wide presence and our high flexibility in production and customer service, we are able to individually offer complete solutions wherever and whenever you need us. We are the recognized experts in our technologies Pepperl+Fuchs has earned a strong reputation by supplying the world s largest process industry companies with the broadest line of proven components for a diverse range of applications. www.pepperl-fuchs.com Subject to change without notice Copyright PEPPERL+FUCHS Printed in Germany Part. No. 200370 03/12 03