4
Safety-related information
en
1
Safety-related information
1.1
Basic safety information
Before using this product, carefully read the associated
instructions for use. This document does not replace the
instructions for use.
Incorrect calibration
An incorrect calibration leads to incorrect measured values.
►
The sensitivity must be checked daily before first using the
device, with a known concentration of the gas to be
measured that corresponds to 25 to 50 % of the final
concentration. The accuracy must amount to 0 to +20 % of
the actual value. The accuracy can be corrected by
calibration.
1.2
Safety information on explosion
protection
Devices or components that are used in potentially explosive
atmospheres and which are tested and approved in
accordance with national, European or international explosion
protection guidelines may only be used under the approved
conditions in compliance with the statutory provisions.
Oxygen-enriched atmospheres
Explosion protection is not guaranteed in oxygen-enriched
atmospheres (>21 Vol% O
2
).
►
Remove the device from the potentially explosive
atmosphere.
Risk of explosion!
►
Do not open the gas detector in explosion-hazard areas.
Specific application conditions
In certain extreme conditions, open plastic parts and non-
earthed metal parts of the housing may store a combustible
level of electrostatic charge.
Activities such as carrying the device in a bag or attached
to a belt, operating the button field or cleaning the device
with a damp cloth do not represent a significant
electrostatic danger. However, if a mechanism which
generates static charge, such as repeated rubbing against
clothing, is identified, suitable precautionary measures
must be implemented, e.g. the use of anti-static clothing
and anti-static footwear.
2
Conventions used in this
document
2.1
Definition of alert icons
The following alert messages are used in this document to
provide and highlight areas of the associated text that require
a greater awareness by the user. A definition of the meaning of
each alert message is as follows:
WARNING
Indicates a potentially hazardous situation. If not avoided, it
could result in death or serious injury.
NOTICE
Indicates a potentially hazardous situation. If not avoided, it
could result in damage to the product or environment.
2.2
Typographical conventions
This symbol identifies information that make the product
easier to use.
2.3
Glossary
Technical term
Explanation
Operation signal
A periodic optical (green LED) and/or
acoustic signal.
D-Light
The D-Light allows the user to check and
indicate compliance with certain settings
(e.g. bump test interval). The green LED
flashes for a short period and
superimposes the optical operation
signal.
