Operating Instructions; Protection Against Electrostatic Discharges; Changing The Type Of Protection - ABB VA Master FAM540 Series Operating Instructions Manual

32 VA Master FAM540 METAL CONE VARIABLE AREA FLOWMETER | OI/FAM540-EN REV. E
... 3 Use in potentially explosive atmospheres in accordance with FM and cCSAus

Operating instructions

Protection against electrostatic discharges

DANGER
Risk of explosion!
The painted surface of the device can store electrostatic
charges.
As a result, the housing can form an ignition source due to
electrostatic discharges in the following conditions:
• The device is operated in environments with a relative
humidity of ≤ 30 %.
• The painted surface of the device is thereby relatively free
from impurities such as dirt, dust or oil.
• Instructions on avoiding ignition in potentially explosive
environments due to electrostatic discharges in
accordance with PD CLC/TR 60079-32-1 and IEC TS 60079-
32-1 must be complied with!
Instructions on cleaning
The painted surface of the device must be cleaned only using a
moist cloth.

Changing the type of protection

The device can be operated with various types of protection:
• When connecting to an intrinsically safe circuit in CL 1
Div. 1 or Zone 1, with 'Intrinsic Safety (IS)' type of
protection.
• When connecting to a non-intrinsically safe circuit in CL 1
Div. 1 or Zone 1, with 'Explosionproof (XP)' type of
protection.
• When connecting to a non-intrinsically safe circuit in CL 1
Div. 2 or Zone 2, with 'Non-Incendive (NI)' type of
protection.
Depending on the model, the device may be designed to be
installed in one of the applications listed. If you plan to use a
device that was installed for one Ex type of protection with a
different Ex type of protection, some measures must be taken
before connecting voltage to the device.
For changing the type of protection, see Changing the type of
protection on page 32.
Special information
Replacing components can affect the device's approval for use in
Class I, Div. 1 and Class I, Div. 2.
If the device was not operated with type of protection XP or IS,
but with type of protection NI, the device is only suitable for use
in Class I, Div. 2, Group A, B, C, D or in non-hazardous areas.