SGB LAE 3-8 Manuel de l'opérateur

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

141

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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