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Installation Instructions for the
Wireless Hazardous Area Limit Switches, WBX Series
1.4
Symbol Definitions
The following table lists those symbols used in this document to denote certain conditions.
Table 2 – Table Symbol Definitions
Symbol
,
CAUTION
m
m
m
m
Definition
ATTENTION: Identifies information that requires special consideration.
TIP: Identifies advice or hints for the user, often in terms of performing a task.
Indicates a situation which, if not avoided, may result in equipment or work (data) on the system being
damaged or lost, or may result in the inability to properly operate the process.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or mod-
erate injury. It may also be used to alert against unsafe practices.
CAUTION symbol on the equipment refers the user to the product manual for additional information.
The symbol appears next to required information in the manual.
WARNING: Indicates a potentially hazardous situation, which, if not avoided, could result in serious
injury or death.
WARNING symbol on the equipment refers the user to the product manual for additional information.
The symbol appears next to required information in the manual.
WARNING, Risk of electrical shock: Potential shock hazard where HAZARDOUS LIVE voltages greater
than 30 Vrms, 42.4 Vpeak, or 60 Vdc may be accessible.
ESD HAZARD: Danger of an electrostatic discharge to which equipment may be sensitive. Observe
precautions for handling electrostatic sensitive devices.
Protective Earth (PE) terminal: Provided for connection of the protective earth (green or green/yellow)
supply system conductor.
Functional earth terminal: Used for non-safety purposes such as noise immunity improvement. NOTE:
This connection shall be bonded to Protective Earth at the source of supply in accordance with national
local electrical code requirements.
Earth Ground: Functional earth connection. NOTE: This connection shall be bonded to Protective
Earth at the source of supply in accordance with national and local electrical code requirements.
Chassis Ground: Identifies a connection to the chassis or frame of the equipment shall be bonded to
Protective Earth at the source of supply in accordance with national and local electrical code require-
ments.
C-Tick Mark. The C-Tick Mark is a certification trade mark registered to ACMA (Australian Communica-
tions and Media Authority) in Australia under the Trade Marks Act 1995 and to RSM in New Zealand
under section 47 of the NZ Trade Marks Act. The mark is only to be used in accordance with conditions
laid down by ACMA and RSM. This mark is equal to the CE Mark used in the European Union.
The Ex mark means the equipment complies with the requirements of the European standards that
are harmonised with the 2014/34/EU Directive (ATEX Directive, named after the French "ATmosphere
EXplosible").
The IEC Ex mark means the equipment complies with the requirements of the International Electro-
technical Commission Explosive. The objective of the IECEx system is to facilitate international trade in
equipment and services for use in explosive atmospheres, while maintaining the required level of safety.
Notified Body. For radio equipment used in the European Union in accordance with the R&TTE Direc-
tive, the CE Mark and the notified body (NB) identification number is used when the NB is involved in
the conformity assessment procedure.
The cULus mark means the equipment was tested to Canadian and US standards by Underwriters'
Laboratories. The combination mark indicates compliance with both Canadian and U.S. Requirements.
"Listed" means that the product can be operated as sold, in accordance with its inscriptions and oper-
ating instructions, without retesting by UL. Products are for use in hazardous locations where explosive
atmospheres may be present. Certification covers division and zone area classification systems for the
United States and/or Canada.
ISSUE 3
50096377
Sensing and Internet of Things
3
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