ENGLAL-SRWAlarm systems for separators– to protect our environment

• Versatile device for basic requirements

• Robust

• Designed to comply European Standard EN 858-1

• Approved according to ATEX Directive 94/9/EC

• Easy to install

• Remote monitoring capability

Detect dangers to protect the environment

LAL-SRW warning devicesfor separator systems

Water is the basis of all life and is a valuable resource that must be protected from contamination. The protec-tion 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 continu-ally 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.

2

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”.“Automatic warning devices and auxiliary devices. Separator systems shall be provided with automatic warning devices.”

In order to ensure appropriate monitoring, warning devices 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 installa-tion 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 off ers a protective function via the GSM mobile phone network around the clock.

Contents

3

Warning system with acoustic and visual alarm

• Warning device LAL-SRW

• Warning device LAL-SRW3

Pages 4-5

GSM warning device with SMS alarm

• Warning device LAL-A6- GSM-EX3

• Warning device LAL-A8-GSM-EX3

• Warning device LAL-D2-GSM-EX3

Pages 6-7

Model overview

• Warning devices LAL-SRW and LAL-SRW3

Accessories

• Cable connector

• Connecting socket

• Wall-mounted enclosure

• Mounting set

Page 8

Model overview

• Complete warning device sets for oil and petrol separators

• Warning devices with GSM modem (message via SMS)

• Warning system for grease interceptor

• Sets of warning devices for grease interceptor

Pages 9-11

Warning system withacoustic and visual alarm

Compact intelligence

Built-in reliability

4

The LAL-SRW warning device for oil and petrol separators is extremely com-pact 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.

If the cause of the alarm is ignored after the reset button is pressed, the alarmis 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 aretriggered. Remote monitoring via a decentralized alarm sensor is also possible.

LAL-SRW / LAL-SRW3 control unit

Sensors and applications

5

Layer thickness sensor The KVF-104-PF layer thickness sensor is designed to monitor the thickness of an oil layer and can distinguish between water and oil/petrol as well as water and air. 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. The sensor can reliably detect whether the thickness of the oil layer on a separator is too large and prevents the oil from reaching the waste water.

Overflow sensor The NVF-104/34-PF overflow sensor is developed specially for distinguishingair 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 so that swift action can be taken to protect the environment from hazardous substances.

KVF-104-PF sensor

NVF-104/34-PF sensor

SLU-103 sensor

GSM warning devicewith SMS alarm

Individual configuration

Application oriented alarm systems

6

The GSM warning system with SMS alarm is an efficient solution for monitor-ing 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 regu-lar 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 indi-vidually. Up to three different sensors can be connected to this warning device. For example, oil layer, 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.

There are three versions of alarm systems available, suitable for a wide varietyof applications.

LAL-A6-GSM-EX3GSM alarm system for 230 V AC supply voltage.

LAL-A8-GSM-EX3Self-sufficient GSM alarm system operated with batteries (6 x 1.5 V) for areas where a supply voltage is not available.

LAL-D2-GSM-EX3GSM alarm system for 12-30 V DC operation (in connection with solar collectors, for example).

LAL-A6-GSM-EX3 control unit

LAL-A8-GSM-EX3 control unit

LAL-D2-GSM-EX3 control unit

Sensors and applications

7

Layer thickness sensor The LAL1-D-EX capacitive sensor measures the thickness of an oil layer and detects a decreasing liquid level in an oil and petrol separator. If the sen-sor 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.

Layer thickness sensor Overflow sensor Sludge level sensor

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.

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 envi-ronment. This keeps manual checks of the sludge level to a minimum. 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.

LAL1-D-EX sensor

LAL8-D-EX sensor

LAL9-D-EX sensor

Warning devices LAL-SRW and LAL-SRW3 • Sensors

Accessories

Control units

Sensors

8

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

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

LAL-VD Junction Box for extension of 2 sensor cables

• Usable for Zone 0• Waterproof, degree of protection IP66• Mineral oil-resistant material

NVO5-B Mounting kit for one sensor

• Consists of: Mounting bracket, cable eye, screws and dowels

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

LAL-SRW3 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 overfl ow 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

LAL-SRW 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

Warning device sets for oil and petrol separators

9

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 KVF-104/34-PF• Cable connector LAL-SK2• Mounting bracket NVO5-B

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 layerand overflow monitoring• Control unit LAL-SRW• Wall box NVO5-KV• Oil layer sensor KVF-104-PF• Overflow sensor KVF-104/34-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• Oil layer sensor KVF-104-PF• Overflow sensor KVF-104/34-PF• Sludge level sensor SLU-103-PF• Cable connector LAL-SK2 (3x)• Mounting bracket NVO5-B (3x)

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

Warning devices with GSM modem (message via SMS) • Sensors

Control units

Sensors

10

LAL1-D-EX Digital sensor for monitoring 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

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

LAL-A6-GSM-EX3 Control unit for oil and petrol separators,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

LAL-D2-GSM-EX3 Control unit for oil and petrol separators,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

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)

Accessories for this warning devices please see page 8.

Warning systemfor grease interceptors

Sets of warning devices for grease interceptor

Control unit

Sensors

11

NVD-11 Control unit for monitoring grease interceptors• Two channels for connecting grease layer and overfl ow sensors• Sensor types: FAU-104, KVF-F, KVF-O• Visual and acoustic alarm• Mounted on DIN rail• Supply voltage 230 V AC

FAU-104 Ultrasonic sensor for monitoring the grease layerPredominant in grease interceptors in restaurants and large kitchenstypically 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

LAL-F-011 Complete set for monitoringthe grease layer in grease interceptors• Control device NVD-111• Wall box NVO5-KV• Grease layer sensor FAU-104• Cable connectors LAL-SK2• Mounting bracket NVO5-B

KVF-O-CS Additional set for LAL-F-011, for overflow monitoring• Overflow sensor KVF-O• Cable connectors LAL- SK2• Mounting bracket NVO5-B

KVF-F Capacitive sensor for monitoring the grease layerPredominant 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

Accessories for this warning devices please see page 8.

Measure your success with LabkotecLabkotec Oy is a leading Finnish manufacturer and supplier of electroniclevel gauges, flow detection devices and alarms, automation and detectortechnology, and web-based data transmission solutions.

We have 50 years of experience of the industry, and have pioneered several new solutions. Our diverse and comprehensive expertise enables us to supply solutions tailored to each customer’s needs.

Our ISO 9001:2008 and ISO 14001:2004 compliant quality and environ-mental systems are certified by Lloyd’s Register Quality Assurance.As regards to safety, we comply with the ATEX and ISPS standards.

Labkotec Oy is a member of the international Indutrade Group.

Our electronic level gauges and leak detection and flow measurementtechnologies cover a comprehensive range of applications. Our commu-nication units and data transmission systems relay readings in real time,independently of permanent electrical or cable networks.

Our automation and detector technology is widely used in access controlsystems in industrial installations, in storage silos and ports, as well asat snow dumping and landfill sites. Our TransControl system is based onRFID identification technology and fulfils the requirements of the Interna-tional Ship and Port Security Facility (ISPS) code.

www.labkotec.comwww.labkonet.com

Labkotec Oy reserves the rights to alterations without prior notice. Due to policy of continuous improvement in R&D,technical specifications may change. Installation shall always be made as documented in manufacturer’s instructions.

Pic

torin

o. /

Häm

een

Offs

et-T

iimi O

y 4

/201

4 1

.000

M15

652_

e

Labkotec OyMyllyhaantie 6FI-33960 Pirkkala FINLANDTel. int. +358 (0)29 006 260Fax int. +358 (0)29 006 1260E-mail info@labkotec.fi

Labkotec UK Ltd.Adminicle House1 Lumb Lane, AudenshawManchester M34 5WH ENGLANDTel. int. +44 (0)844 3350 477Fax int +44 (0)161 292 7673E-mail info@labkotec.co.uk

Labkotec GmbHTechnologiezentrumLise-Meitner-Strasse 224911 FlensburgGERMANYTel. int. +49 (0)461 9992 410Fax int. +49 (0)461 4807 335E-mail info@labkotec.de

Labkotec ABEkbacksvägen 28SE-168 69 BrommaSWEDENTel. int. +46 (0)8 130 060Fax int. +46 (0)8 555 36108E-mail info@labkotec.se