Special Installation Instructions For Devices With Limit Signal Transmitter Or Transmitter - ABB VA Master FAM540 Inbetriebnahmeanleitung

Ex relevant specifications
Warning! Risk of explosion!
Changing equipment accessories can affect suitability for use for Class I, Div 1 and Class I,
Div 2. Meters installed as NI rather than XP or IS are only suitable for use in Class I, Div 2,
Group A,B,C,D or in non-hazardous locations.
Warning! Risk of explosion!
• Substitution of components may impair intrinsic safety.
• Substitution of components may impair suitability for division 1 & 2 and zone 0, 1 & 2.
• Keep cover tight while circuit is alive.
• Do not disconnect equipment unless area is known to be non hazardous.
• Do not open when an explosive gas atmosphere is present.
• Do not open when energized.
• After de-energized, delay 2 minutes before opening.
• For connection only to non-flammable processes.
4.3

Special installation instructions for devices with limit signal transmitter or transmitter

All installation instructions and safety requirements are contained in the respective chapters of
the operating instructions.
The meters can be used in a variety of applications:
• As an intrinsically safe meter in zone 1, if connected to an intrinsically safe circuit.
• As a pressure resistant meter in zone 1, if connected to a non-intrinsically safe circuit.
• As an non-incendive meter in zone 2, if connected to a non-intrinsically safe circuit.
18 - EN VA Master FAM540 CI/FAM540-X1