Pepperl+Fuchs LAL-SRW-08 User manual

ISO9001
LAL-SRW-**
ALARM SYSTEM
ALARMSYSTEM
SYSTÈME D'ALARME
ALARMSYSTEM
EN
DE
FR
DA
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".
EN
DE
FR
DA
ALARM SYSTEM

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1 Safety ..............................................................................3
1.1 General safety instructions ......................................................................... 3
1.2 Used Symbols............................................................................................... 3
1.3 Declaration of Conformity ........................................................................... 4
1.4 Intended use ................................................................................................. 4
1.5 Maintenance.................................................................................................. 5
1.6 Delivery, Transport and Storage.................................................................. 6
1.7 Installation and Commissioning .................................................................6
1.8 Installation in connection with intrinsically safe circuits.........................7
1.9 Repair ............................................................................................................ 7
1.10 Disposal ........................................................................................................ 7
1.11 Applied standards and directives............................................................... 8
2 Product Specifications ..................................................9
2.1 Function ........................................................................................................ 9
2.2 Device elements and dimensions............................................................... 9
2.3 Equipment supplied ................................................................................... 13
3 Installation....................................................................14
3.1 Mounting of sensors in the oil/petrol separator...................................... 14
3.2 Mounting of the warning device................................................................ 17
3.3 Connection.................................................................................................. 18
4 Commissioning ............................................................23
4.1 DIP switch settings..................................................................................... 23
5 Operation......................................................................24
5.1 Alarm messages......................................................................................... 24
5.2 Resetting alarm message .......................................................................... 24
5.3 Performance test ........................................................................................ 25

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6 Troubleshooting .......................................................... 26
6.1 Fault search and alarm states ...................................................................26
6.2 System care.................................................................................................27
7 Technical specifications............................................. 28
7.1 NVO5-151*-PF..............................................................................................28
7.2 NVF-104/34-PF.............................................................................................29
7.3 KVF-104-PF..................................................................................................29
7.4 LAL-SK2.......................................................................................................29

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Safety
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1 Safety
1.1 General safety instructions
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 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 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.

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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 68307 Mannheim, Germany, has a
certified quality assurance system in conformity with ISO 9001.
1.4 Intended use
The warning device is a compact alarm system for monitoring sensors in the potentially
explosive area of zone 0 in oil/petrol separators.
The warning device must only be installed in a suitable switch cabinet or in the installation
housing NVO5-KV.
The respective warning devices are intended for the following purposes:
•LAL-SRW-01 is used for detecting the oil level thickness.
•LAL-SRW-08 is used for detecting the maximum liquid level.
•LAL-SRW-18 is used for detecting the oil level thickness and the maximum liquid level.
Note!
This symbol brings important information to your attention.
Note!
A Declaration of Conformity can be requested from the manufacturer.
ISO9001

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The warning device must only be operated with the sensor types delivered in the system:
1.4.1 Coding
The stars replace a combination of characters, depending on the product.
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.
Description Type code
Overflow sensor for detecting excessively high fluid level NVF-104/34-PF
Oil level sensor for detecting thickness of oil level KVF-104-PF
Warning device Cable connector
Pepperl+Fuchs GmbH Pepperl+Fuchs GmbH
Lilienthalstrasse 200, 68307 Mannheim,
Germany Lilienthalstrasse 200, 68307 Mannheim, Germany
LAL-SRW-** LAL-SK2
BVS 09 ATEX E 137 simple apparatus acc. to EN 60079-11
II (1)G [Ex ia] IIB
Oil level sensor Overflow sensor
Pepperl+Fuchs GmbH Pepperl+Fuchs GmbH
Lilienthalstrasse 200, 68307 Mannheim,
Germany Lilienthalstrasse 200, 68307 Mannheim, Germany
KVF-104-PF NVF-104/34-PF
DEMKO 07 ATEX 142586X DEMKO 07 ATEX 142588
II 1G Ex ia IIB T3 II 1G Ex ia IIB T3

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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, dry environment. Note the permitted storage temperature
(see data sheet).
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.
1.7.2 Installation of 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 after complete mounting and
connection of the sensors.
The cable and the identification plate attached to it are elements of the product. The cable must
not be shortened to such an extent that the identification plate is removed. The identification
plate must not be removed.
The sensor has IP68 protection and is weather- and oil-resistant. It can therefore be installed in
oil/petrol separators.
When installing the device in oil/petrol separators, observe the permissible ambient
temperature in the range from -20 °C...60°C (253 K ... 333 K).
1.7.3 Connection to sensors for potentially explosive zone
In oil/petrol separators, only sensors that are certified for installation in potentially explosive
zones may be connected.
The type of protection of the external equipment must comply with the protection type specified
for the total system.

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1.7.4 Sensor cables
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. The sensor itself must not
be grounded.
If you extend the sensor cable, observe the applicable ATEX specifications with regard to color,
quality and durability. Use unshielded 2-wire cables with a cross-section of 1 mm²for each
sensor.
1.8 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.
If the used sensors have no withstand test voltage (500 V according to EN 60079-11) between
the external conductive parts and the intrinsically safe circuits, it must be assumed that the
sensors and the corresponding intrinsically safe circuits have electrical contact with each other.
Verification of intrinsic safety circuits must then always include the possibility of connection of
all the intrinsically safe circuits.
1.9 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.
1.10 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.

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1.11 Applied standards and directives
EN 60079-0:2006
EN 60079-11:2007
EN 60079-26:2004
EN 50178
EN 61000-6-2
EN 61000-6-3
ATEX Directive 94/9/EC
EMC Directive 2004/108/EC
Low-Voltage Directive 2006/95/EC

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Product Specifications
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2 Product Specifications
2.1 Function
The warning device monitors the status of one oil level sensor and/or one overflow sensor in an
oil/petrol separator. LEDs at the device indicate alarm, sensor fault and system and sensor
status. In the event of an alarm, an additional acoustic signal sounds.
2.2 Device elements and dimensions
Warning device
1DIP switch
2LEDs
3Connection for power supply and potential-free contacts
4Reset button
5Sensor connections
LAL-SRW-**
SUPPLYALARM
RESET H IGH OIL LEVEL
OVERFLOW
ALARM
SYSTEM
OK
Separator Alarm System
68301 Mannhe i m Germany
www. pepperl -fuchs. com
70 58
86
54
4
23
51

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Installation housing NVO5-KV
200
116 105

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Oil level sensor KVF-104-PF
1Lower section with laser marking
2Middle section
3Upper section
4Cable
5Switch point
3
1
5
4
2
138
25
Ø31.6

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Product Specifications
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Overflow sensor NVF-104/34-PF
Cable connector LAL-SK2
1Cable with identification plate
2Stainless steel tube
3Switch point
2
1
3
100 24 5000
Ø20
25
30
95 75
145

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2.3 Equipment supplied
* with LAL-SRW-18 2 units
Designation Number LAL-SRW-01 LAL-SRW-08 LAL-SRW-18
Installation housing with DIN rail 1NVO5-KV NVO5-KV NVO5-KV
Intrinsically safe warning device,
230 V AC 1NVO5-151A-PF NVO5-151B-PF NVO5-151C-PF
Oil level sensor with 5 m cable 1KVF-104-PF -KVF-104-PF
Overflow sensor with 5 m cable 1 - NVF-104/34-PF NVF-104/34-PF
Mounting set for one sensor 1* NVO5-B NVO5-B NVO5-B
Cable connector for one sensor 1* LAL-SK2 LAL-SK2 LAL-SK2

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3 Installation
3.1 Mounting of sensors in the oil/petrol separator
Read the chapter on Safety and, in particular, the section on Installation and Commissioning
(see chapter 1.7) before installing the sensor. Do not remove the identification plate.
During installation, observe the instructions of the oil/petrol separator manufacturer. Always
ensure that the sensor suspension device remains constantly at the correct height. If possible,
ensure that the suspension device is mounted in a location that can be reached from the
separator access shaft so that it is possible to raise the sensor during separator emptying
(disposal) or maintenance of the oil/petrol separator.
An exact height adjustment is made with the mounting set. For securing in a concrete
container, use mounting set NVO5-B supplied with the equipment. For containers, tanks or
separators made of other materials, e. g. plastic or metal, use other appropriate means of
mounting (screws and dowels).
The following information only applies to alarm systems LAL-SRW-01 and LAL-SRW-08:
Warning!
Risk of short circuit
Injuries and damage to the device are possible when working with live parts.
• Before working on the device, always disconnect the supply voltage.
• Connect the device to the supply voltage only after completion of the work.
Caution!
Malfunction or damage through connection of several sensors.
In case of nonobservance, the safety and operation of the entire alarm system is not
guaranteed.
Connect only one sensor to the warning device. The warning device is designed for the
connection and operation of one sensor only.

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Oil level sensor
With a correct fluid level, the sensor must be immersed a few centimeters in the fluid. How far it
is immersed depends on the type of oil/petrol separator, the design and the capacity. The lower
section made of stainless steel must always be immersed in the fluid. The switch point of the
sensor is located between the isolated middle section and the upper metal section.
Figure 3.1: Mounting of oil level sensor KVF-104-PF
Zone 0

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Overflow sensor
The lower edge of the sensor is usually a few centimeters above the normal fluid level,
positioned close enough for the switch point is covered by liquid if there is an overflow of the
contaminated coalescence, or the float shut-off valve is defective, or there is another situation
that can lead to an overflow or contamination. The switch point is at the same level of the 5 mm
hole on the side of the sensor.
Figure 3.2: Mounting of overflow sensor NVF-104/34-PF
Zone 0

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3.2 Mounting of the warning device
Installing the warning device on the DIN rail
Snap the device onto the DIN rail as follows:
Note!
If the device is installed in a housing or switch cabinet, note the mounting instructions of the
housing or switch cabinet manufacturer.
Caution!
Overheating
If outside temperature exceeds 60 °C with maximum load, this may result in damage to the
device.
• Ensure there is sufficient ventilation at the place of installation.
• Observe a minimum clearance of 5 mm between devices on the DIN rail.
Click!

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3.3 Connection
Read the chapter on Safety and, in particular, the section on Installation and Commissioning
before installing the device. Do not remove the identification plate.
When making the connection, ensure the polarity of the sensor cables is correct. The loop
resistance of the extension cable should not exceed
• 20 Ωfor the sensor KVF-104-PF
•or10Ωfor the sensor NVF-104/34-PF.
Warning!
Risk of short circuit
Injuries and damage to the device are possible when working with live parts.
• Before working on the device, always disconnect the supply voltage.
• Connect the device to the supply voltage only after completion of the work.