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English (GB) Installation and operating instructions
Original installation and operating instructions
These installation and operating instructions
describe Grundfos ALR 20/A Ex relay and AL05 Ex
sensor.
Sections 1-6 give the information necessary to be
able to unpack, install and start up the product in a
safe way.
Sections 7-10 give important information about the
product, as well as information of service and
disposal of the product.
CONTENTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
Read this document and the online version
of the installation and operating
instructions before installing the product.
Installation and operation must comply
with local regulations and accepted codes
of good practice.
2
1. General information
1.1 Hazard statements
The symbols and hazard statements below may
appear in Grundfos installation and operating
instructions, safety instructions and service
instructions.
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
personal injury.
Page
WARNING
2
Indicates a hazardous situation which, if
2
not avoided, could result in death or
2
serious personal injury.
3
CAUTION
3
3
Indicates a hazardous situation which, if
4
not avoided, could result in minor or
moderate personal injury.
6
The hazard statements are structured in the
6
following way:
6
SIGNAL WORD
6
6
Description of hazard
6
Consequence of ignoring the warning.
6
- Action to avoid the hazard.
7
1.2 Notes
7
The symbols and notes below may appear in
7
Grundfos installation and operating instructions,
7
safety instructions and service instructions.
8
8
Observe these instructions for explosion-
8
proof products.
8
8
A blue or grey circle with a white graphical
symbol indicates that an action must be
taken.
A red or grey circle with a diagonal bar,
possibly with a black graphical symbol,
indicates that an action must not be taken
or must be stopped.
If these instructions are not observed, it
may result in malfunction or damage to the
equipment.
Tips and advice that make the work easier.
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