Printed in the Federal Republic of Germany TR-Electronic GmbH 2004, All Rights Reserved
11/05/2018 TR - ECE - BA - DGB - 0036 - 16 Page 65 of 112
2.3 Organizational measures
• This User Manual must always kept accessible at the site of operation of the
measurement system.
• Prior to commencing work, personnel working with the measurement system
must have read and understood
- the assembly instructions, in particular the chapter "Basic safety
instructions",
- and this User Manual, in particular the chapter "Additional safety
instructions".
This particularly applies for personnel who are only deployed occasionally,
e.g. at the parameterization of the measurement system.
2.4 Usage in explosive atmospheres
When used in explosive atmospheres, the standard measuring system has to be
installed in an appropriate explosion protective enclosure and subject to requirements.
The products are labeled with an additional marking on the nameplate:
Explosion Protection Enclosure
Marking -User Manual
A**58*
Gas: II 3G Ex
Dust: II 3D Ex
TR-ECE-BA-GB-0101
A*W58*
Gas: II 3G Ex
TR-ECE-BA-GB-0116
A**70*
Gas: II 2G Ex
TR-ECE-BA-GB-0098
A*W70*
Gas: II 2G Ex
TR-ECE-BA-GB-0126
The “intended use” as well as any information on the safe usage of the ATEX-
compliant measuring system in explosive atmospheres are contained in the User
Manual.
Standard measuring systems that are installed in the explosion protection enclosure
can therefore be used in explosive atmospheres.
When the measuring system is installed in the explosion protection enclosure, which
means that it meets explosion protection requirements, the properties of the
measuring system will no longer be as they were originally.
Following the specifications in the User Manual, please check whether the
properties defined in that manual meet the application-specific requirements.
Fail-safe usage requires additional measures and requirements. Such measures and
requirements must be determined prior to initial commissioning and must be taken and
met accordingly.
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