SGB LAE 3-8 Operator's manual

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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5. Mounting the System
5.1 Basic Instructions
- Prior to commencing work, the documentation must be read and
understood. In case of ambiguities, refer to the manufacturer.
- The safety instructions in this documentation must be adhered to.
- Only qualified service companies may be used for mounting and
commissioning1.
- Leadthroughs for connection lines through which the explosion
atmosphere can carry over must be sealed gas-tight.
- Comply with relevant regulations regarding electric installation, ex-
plosion protection (e.g. EN 60 079-14, -17), and accident preven-
tion.
5.2 Mounting the Indicating Unit
- Wall mounting usually with dowels and screws in a dry room
- NOT in potentially explosive areas.
- For housing dimensions and hole pattern, see Chap. 7.
5.3 Electrical Cables
Mains connection LAE and power supply for VLX .. A-Ex tool (5-wire):
- 1.5 mm2without ferrule or with ferrule without plastic collar
Potential-free relay contacts (6-wire):
- 1.5 mm2without ferrule or with ferrule without plastic collar
- 0.75 mm2with ferrule and plastic collar or with ferrule without plastic
collar
External signal (2-wire):
- 1.5 mm2without ferrule or with ferrule without plastic collar
- 0.75 mm2with ferrule and plastic collar or with ferrule without plastic
collar
Must be resistant to stored/pumped liquids
5.4 Electrical Wiring Diagram
(1) Install the electrical connection securely, without plug or switch-
ing connections.
(2) Observe the requirements for electric installations, if necessary,
also those of the electric companies.
(3) Terminal layout: (see also block diagrams in Chap. 5.4.3 and
5.4.4)
1For Germany: Specialist service companies per Water Law that have documented qualifications to install
leak detection systems.
Mounting

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1/2 Power connection (100 to 240 V AC), wired internally
54/53 Power supply (230 V AC) for VLX .. A-Ex tool
40/41 free, no function
5/6 External signal 24 V DC (+: 5, -: 6), wired internally
51/52 Signal circuit for VLX .. A-Ex tool
21/22 Signal circuit for channel 2, must be bridged
31/32 Signal circuit for channel 3, must be bridged
Potential-free relay contacts:
60(27)/61(28) Channel 1 open in the case of alarm and power
failure
60/62 As above, but contacts closed
63(23)/64(24) Channel 2, no function
63/65 As above, no function
66(25)/67(26) Channel 3, no function
66/68 As above, no function
(4) Do not apply voltage until all electrical cables are connected and
the housing cover is closed.
5.4.1 Connecting the wires
(1) Press down the orange point with a screwdriver. This opens the
tension spring of the terminal.
(2) Insert the cable into the open terminal.
(3) Hold the cable and remove the screwdriver.
(4) Check the cable for a tight fit and install more cables to the ter-
minals using the same process.
Mounting

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5.4.2 Power supply 230 V AC
Terminals for the power supply
5.4.3 Block diagram LAE board (1-8)
01.1 Indicator light, alarm I, red 59 Relay (for forwarding here)
01.2 Indicator light, alarm II, yellow (no function) 69 Buzzer
09 Indicator light "Operation", green 71 “Mute” button
24.1 Fuse F1 (1 A), external signal 116 24 V DC power supply
24.2 Fuse F2 (1 A), forwarding power supply 54 140 Contact for serial data transfer (1-8)
24.3 Fuse F3 (100 mA), fuse for switching power supply 141 Terminal strip for keypad (1-8)
31.1 Terminal strip mains, power supply 230 V AC
31.2 Terminal strip mains, power supply 24 V DC (no function)
31.3 Terminal strip signal circuit 1 to 3 and external signal (only 51,
52 with function here)
31.4 Terminal strip potential-free contacts for signal circuit 1 to 3
(only 60, 61, 62 or 23 and 24 with function here)
69
09
71
11 12 21 22 31 32 05 06 40 41
51 52
1L 1L 2N 2N
54 53
63 64 65
60 61 62 66 67 68
116
24.2
24.1
59
59
59
7
31.3
31.4
31.2
31.1
141
140
24.3
100 - 240 V AC
24 V DC
139
01.2
01.1
Mounting

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5.4.4 Block diagram/connection diagram – Connection of LAE 3-8 with VLX .. A-Ex
01.1 Indicator light Alarm I, red
09 Indicator light "Operation",
green
24.1 Fuse F1 (1 A), external
signal
24.2 Fuse F2 (1 A), forwarding
power supply 54
24.3 Fuse F3 (100 mA), fuse for
switching power supply
31.1 Terminal strip mains, power
supply 230 V AC, (1-8)
31.2 Terminal strip 24 VDC, no
function (1-8)
31.3 Terminal strip, signal circuit 1
(1-8)
31.4 Terminal strip potential-free
contacts for signal circuit 1
t(1-8)
31.5 Terminal strip mains, power
supply LAE, 230 V AC
41 Alarm switch (1-8)
42 Pump switch (1-8)
59 Relay (1-8)
60 Vacuum pump (1-8)
69 Buzzer (1-8)
69.1 Buzzer, joint, 24 V DC
71 “Sound off” switch (1-8)
86 Indicating unit
87 Leak detector (1-8)
139 Keypad (1-8)
51 515151 52 525252
53 53535353 535353
54 54545454 545454
11 111111
60 6060
L1
L1
N
N
PE
60
7 777
62 626262
61 616161
1L 1L1L1L1L 1L1L1L2N 2N2N2N2N 2N2N2N
54 545454
52 525252
51 515151
53 535353
12 121212
41 414141
42 424242
A AAA
M
~
M
~
M
~
M
~
M
~
M
~
M
~
M
~
60 60606060 606060
1
N
PE
L
8
3
2
P PPPP PPP
PE PEPEPEPE PEPEPE
100 - 240 V AC
100 - 240 V AC
100 - 240 V AC
100 - 240 V AC
24 V DC
24 V DC
24 V DC
24 V DC
66/67/68 66/67/6866/67/6866/67/68
63/64/65 63/64/6563/64/6563/64/65
31/32 31/3231/3231/32
05/06 05/0605/0605/06
21/22 21/2221/2221/22
40/41 40/4140/4140 /41
116
116116116
69
69
71
59
59
59
87
86
87878787 878787
139
31.2
31.3
31.4
01.1
140 141
31.1
31.5
69.1
24.3
24.2
24.1
87 136125114103 921
Mounting

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5.4.5 Installation Example
86 Indicating unit LAE 3-8
87 Tool VLX .. A-Ex 1-8
96.1 Buzzer 24 V DC
Mounting
87
86
87
Ex
230 V AC / 50 Hz
Ex
Ex
Ex
Ex
/
/
pot.frei (51/52) pot.frei (51/52)
18
51/52 51/52 54/53 54/53
VLX ../A-Ex VLX ../A-Ex
230 V AC (53/54)
230 V AC (53/54)
96.1

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6. Commissioning, Functional Check, and Maintenance
Only perform commissioning once the steps in section 5 "Mounting"
are fulfilled.
6.1 Commissioning the Indicating Unit
(1) Remove bridges from the indicating unit channels to be used.
(2) Establish connection lines between the potential-free relay con-
tacts of the devices to be connected and the respective channels
of the LAE.
(3) Connect the power supply to the indicating unit.
Note:
The power supply complies with the requirements described in
chapters 3.3, 5.4, and 5.5 as well as in the relevant documenta-
tion of the connected device.
(4) Check that the "Operation" indicator light on the indicating unit
lights up.
(5) When the signal circuits are correctly closed (via leak detector or
probe/service contacts or bridges), only the "Operation" indicator
lights up.
(6) Determination of the audible alarm for the individual connected
channels. For this purpose, establish the alarm status at the re-
spective connected devices, probes, or service application and
determine the audible and visual alarm signal at the indicating
unit.
Acknowledge audible alarm(s) if necessary.
Note:
To set the alarm condition, read the relevant documentation for
the connected device.
(7) If an alarm was detected in (5), restore the operating status of
the connected devices and check that the respective indicator
lights have gone out on the indicating unit (operating status as in
(4)).
Note:
To set up the operating status, read the relevant documentation
for the connected device.
(8) Repeat points (5) and (6) for further occupied channels.
6.2 Functional Check and Maintenance
(1) Once a year as part of the leak detector test.
(2) Observe regulations and information on the test scope according
to the documentation of the connected devices.
Commissioning, Functional Check, and Maintenance

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7. Dimensions and Drilling Pattern
Dimensions and Drilling Pattern
295
400
260
360
Ø7,8

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8. EU Declaration of Conformity
We,
SGB GmbH
Hofstr. 10
57076 Siegen
Germany,
hereby declare in sole responsibility that the
Indicating unit LAE 3-8
is in conformity with the essential requirements of the EU directives
listed below.
In case the device is modified or used in a way that was not agreed
with us, this declaration shall lose its validity.
Number/short title Satisfied regulations
2014/30/EU
EMC Directive
EN 61000-6-3:2007 + A1:2011
EN 61000-6-2:2005
EN 61000-3-2:2014
EN 61000-3-3:2013
2014/35/EU
Low-voltage Directive
EN 60335 -1:2012
EN 61010 -1:2011
EN 60730 -1:2017
Conformity is declared by:
As of: 02/2019
ppa. Martin Hücking
(Technical Director)
9. Manufacturer’s Declaration of Compliance
Compliance with the “Muster-Verwaltungsvorschrift Technische
Baubestimmungen“ (sample administrative regulation technical build-
ing regulations) is hereby declared.
EU Declaration of Conformity

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10. TÜV-Nord certification
Certification

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Text
Text
Legal notice
SGB GmbH
Hofstr. 10
57076 Siegen
Germany
Phone [phone]
E-mail [e-mail]
Web www.sgb.de
Photos and sketches are not binding for
the scope of delivery. Subject to change
without notice. ©SGB GmbH, 11/2019