SGB LAE 3-8 Bedienerhandbuch
Documentation
Indicating unit LAE 3–8
• for VLX .. A-Ex
Read instructions prior to commencing any work
As of: 11/2019
Art. No.: 605 622
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Table of Contents
1. General.................................................................................3
1.1 Information
1.2 Explanation of Symbols
1.3 Limitation of Liability
1.4 Copyright
1.5 Warranty Conditions
1.6 Customer Service
2. Safety....................................................................................4
2.1 Intended use
2.2 Obligation of the Operating Company
2.3 Qualification
2.4 Personal Protective Equipment
2.5 Fundamental Hazards
3. Technical Data.....................................................................6
3.1 General Data
3.2 Electrical Data
3.3 Field of Application
4. Design and Function...........................................................8
4.1 Design
4.2 Displays and Controls
4.3 Alarm
5. Mounting the System..........................................................11
5.1 Basic Instructions
5.2 Mounting the Indicating Unit
5.3 Electrical Cables
5.4 Electrical Wiring Diagram
5.5 Installation Example
6. Commissioning, Functional Check, and Maintenance ....16
6.1 Commissioning the Indicating Unit
6.2 Functional Check and Maintenance
7. Dimensions and Drilling Pattern........................................17
8. EU Declaration of Conformity ............................................18
9. Manufacturer’s Declaration of compliance.......................18
10. Certification TÜV-Nord........................................................19
Table of Contents
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1. General
1.1 Information
These instructions provide important information on how to use the
LAE 3-8 indicating unit. The pre-requisite for workplace safety is the
adherence to all safety and handling instructions specified in this
manual.
Furthermore, any local regulations for prevention of accidents that are
applicable at the site of use of the indicating unit and general safety
instructions must be complied with.
1.2 Explanation of Symbols
In these instructions, warnings are marked with the adjacent symbol.
The signal word expresses the level of hazard.
DANGER:
Imminently hazardous situation which, if not avoided, will result in
death or serious injury.
WARNING:
Potentially hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTION:
Potentially hazardous situation which, if not avoided, could result in
minor or moderate injury.
Information:
Highlights useful tips, recommendations, and information.
1.3 Limitation of Liability
All information and instructions in this documentation have been
compiled considering the applicable standards and regulations, the
state of the art, and our longstanding experience.
SGB does not assume any liability in the case of:
Noncompliance with these instructions
Improper use
Use by unqualified personnel
Unauthorized modifications
Connection to systems not approved by SGB
1.4 Copyright
The contents, texts, drawings, images, and other representations are
copyrighted and subject to industrial property rights. Any misuse is
punishable.
1.5 Warranty Conditions
We provide warranty for the LAE 3-8 indicating unit for a period of 24
months from the day of installation on site in accordance with our
General Terms & Conditions.
The maximum warranty period is 27 months from the date of sale.
General
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The obligation of warranty shall cease to exist in the case of
- inadequate or improper installation,
- improper use,
- modifications/repairs without consent of the manufacturer.
1.6 Customer Service
Our customer service is available for any inquiries.
For information on contacts, please refer to our website www.sgb.de
or the label of the LAE 3-8 indicating unit.
2. Safety
2.1 Intended Use
Install the indicating unit 3-8 outside of the Ex area
Install inside a closed and dry room in buildings or alternatively in
an outdoor protective box
Do not install near strong heat sources
Install with at least 1 m distance from the tool (VLX .. A-Ex)
Do not install above or below the leak detector
Conditions from Chap. 3.3 “Field of Application” must be adhered
to.
The power supply cannot be disconnected
Any claims arising from misuse are excluded.
2.2 Obligation of the Operating Company
The indicating unit 3-8 is used in the commercial sector. The operat-
ing company is therefore subject to statutory occupational safety obli-
gations.
In addition to the safety instructions in this documentation, all appli-
cable safety, accident prevention, and environmental regulations
must be adhered to. In particular:
- Compiling a risk assessment and implementing its results in a di-
rective
- Performing regular checks as to whether the directive is in compli-
ance with the current standards
- The directive includes, among others, how to react to an alarm that
might arise
- Arranging for an annual functional check
Safety
WARNING!
Danger from
misuse
WARNING!
Danger in case
of incomplete
documentation
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2.3 Qualification
The personnel must be capable of independently recognizing and
avoiding potential risks based on their qualifications.
Companies commissioning leak detectors or indicating units should
have completed respective training with SGB, through SGB, or its au-
thorized representative.
National guidelines must be adhered to.
For Germany: Technical service qualification for assembly, commis-
sioning, and maintenance of leak detection systems.
2.4 Personal Protective Equipment (PPE)
Personal protective equipment must be worn during work.
- Wear necessary protective equipment for the relevant work
- Note and comply with existing PPE signs
Entry in the "Safety Book"
Wear HV vest
Wear safety footwear
Wear hard hat
Wear gloves – where necessary
Wear safety goggles – where necessary
2.5 Fundamental Hazards
DANGER:
From electric current
When working on an open indicating unit, disconnect it from the pow-
er supply.
WARNING!
Danger to hu-
mans and the
environment in
the case of in-
adequate quali-
fication
Safety
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Comply with relevant regulations regarding electric installation and
regulations for prevention of accidents.
DANGER:
From explosive vapor-air mixtures
Comply with explosion regulations, e.g., German Ordinance on Indus-
trial Safety and Health (Betriebssicherheitsverordnung, BetrSichV)
(and/or directive 1999/92/EC and the laws of the respective member
states resulting therefrom) and/or others.
3. Technical Data of the Indicating Unit
3.1 General Data
Dimension and drilling pattern see Chap. 7
Weight 5.4 kg
Storage temperature range -30°C to +70°C
Operating temperature range 0°C to +40°C
Buzzer volume >70 dB(A) in 1 m
Housing protection class IP 40
3.2 Electrical Data
Power supply 100 to 240 V AC, 50-60 Hz
Power input 44 W
Terminals 60(27)/61(28)/62,
Potential-free outputs max. 1.5 A for 220 V DC/250 V AC
3.3 Field of Application
3.3.1 General use
The indicating unit 3-8 has up to eight boards. Each of these boards
has three input channels.
Each channel has two terminals. When connected, a signal circuit is
closed between the terminals. If a VLX .. A-Ex is connected, only the
first channel can be used. All other channels have to be closed
(bridge).
If the signal circuit of the first channel is closed, the indicating unit is
in good state. If the signal circuit is interrupted, the alarm is triggered
at the LAE.
Note:
Unused channels in the indicating unit must be bridged.
In the event of an alarm, the internal buzzer sounds on the indicating
unit and indicator lights on the keypad light up.
The following applies to the alarm display on the keypad:
Safety/Technical Data
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Alarm channel 1 on board 1: Red LED of the first keypad on.
Alarm channel 1 on board 2: Red LED of the second keypad on.
...
Alarm channel 1 on board 8: Red LED of the eighth keypad on.
Note:
In addition, each board has potential-free relay contacts for forward-
ing the alarm.
To forward a joint alarm, the terminals of the potential-free contacts
must be looped through.
3.3.2 Use as an indicating unit for VLX .. A-Ex tools
VLX .. A-Ex type tools can be mounted within the Ex area and are
electrically connected to the indicating unit mounted outside the Ex
area.
A tool is connected to one indicating unit board at a time. The indicat-
ing unit is connected to the potential-free contacts of the tool via the
signal circuit, and the indicating unit additionally provides the 230 V
AC power supply for the tool.
Note:
In general, it should be noted that VLX .. A-Ex tools are only connect-
ed to channel 1 .
The other channels, 2 and 3, of the indicating unit remain unused and
must be closed.
For a connection diagram, the circuit diagram, and an installation ex-
ample, see Chap. 5.4.
Technical Data
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4. Design and Function
4.1 Design
Interior view with:
31.1 Terminal strip mains, power supply 100-240 V AC
31.2 Terminal strip, power supply VLX.. A-Ex (1-8)
31.3 Terminal strip, signal circuit VLX.. A-Ex (1-8)
31.4 Terminal strip, potential-free contacts for alarm forwarding (1-8)
31.5 Terminal strip, 24 volt for alarm forwarding, buzzer, total
69 Buzzer for boards 1-8
76 Main board 1-8
141 Terminal strip, keypad 1-8
Design and Function
12
34
56
78
76
141
69
31.4
31.3
31.2
31.1
31.5
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Exterior view with
:
139.1 Keypad for board 1
139.2 Keypad for board 2
…
…
139.8 Keypad for board 8
69.1 Joint buzzer alarm
Design and Function
139.1
139.2
139.8
69.1
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4.2 Displays and Controls
4.2.1 Display
The indicator lights on the keypad indicate the following:
Indicator lights, operation, board 1 to 8.
Individual alarm on channel 1 board 1 to 8: red LED lights up; if the
audible alarm is acknowledged, the red LED flashes.
4.2.2 Function "Turn off audible alarm signal"
Briefly press the “Mute” button once; the acoustic signal turns off, and
the red LED flashes.
No function
4.3 Alarm
In the event of an alarm, acknowledge the audible signal and check
which connected device has triggered the alarm. In the event of
alarms from connected leak detection systems, inform the responsi-
ble service company immediately. In the case of service notifications,
have the necessary measures carried out within the required time
frame.
Design and Function
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