RMG TME400-VMF Operating Manual page 16

1 Introduction
Strength tests for components were conducted at 1.5 times the nominal pressure
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for the pressure testing; the leak testing for the assembly was conducted at 1.1.
times the nominal pressure. Certificates were issued for successfully passed tests
The maximum operating pressure and the permissible temperature range are
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specified on the type plate of the device. Operation of the device is only permitted
within these specified ranges.
10
Danger
The following applies for work in hazardous areas (all zones):
The pulse generators of the turbine meter must be connected to intrin-
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sically safe power circuit only.
Only tools that are approved for Ex Zone 1 are permitted for mainte-
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nance and repair tasks.
Otherwise, work must only be carried out when there is not an explo-
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sive atmosphere.
The risk of ignition due to impact or friction must be avoided.
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Work on devices which are used in hazardous areas must be carried
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out by qualified electrical engineers with special capabilities for work
in hazardous areas.
Danger
The following applies for work in hazardous areas (all zones):
The wiring / installation in hazardous areas must only be carried out by
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trained personnel in accordance with EN60079-14 and in observance of
national regulations.
Qualified persons must satisfy the definitions in accordance with DIN
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EN 0105 or IEC 364 or directly comparable standards.
If one or more power circuits are used, it must be ensured that the
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permissible limit values according to the EC type approval certificate
are not exceeded when choosing the cables.
- Every Ex signal circuit must be routed with a dedicated cable which
must be guided through the appropriate PG screw coupling.
Permanent installation of the intrinsically safe cable is mandatory.
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Manual TME400-VMF · EN02 · 2018 September 6th