Installation Instructions; Sensor Insulation; Opening And Closing The Transmitter Housing - ABB VA Master FAM540 Commissioning Instructions

3.2

Installation instructions

The installation, commissioning, maintenance and repair of
devices in areas with explosion hazard must only be carried
out by appropriately trained personnel.
The operator must strictly observe the applicable national
regulations with regard to installation, function tests, repairs,
and maintenance of electrical devices. (e.g. NEC, CEC).
Intrinsic Safety Control Drawing
NOTE
For intrinsically safe installations, the FAM540 must be
installed as illustrated in the "Intrinsic Safety Control
Drawing".
See chapter "Appendix"
3.2.1

Sensor insulation

The device may be insulated. The maximum permissible
thickness of the insulation corresponds to the flange diameter.
See chapter „Sensor insulation" on page 27.
18 CI/FAM540-EN Rev. B | VA Master FAM540
3.2.2

Opening and closing the transmitter housing

DANGER
Danger of explosion if the device is operated with the
transmitter housing open!
Before opening the transmitter housing, bear in mind the
following:
— Check that a valid fire permit is available.
— Make sure that there is no explosion hazard.
— Before opening the device, switch off the power supply
and wait for t > 2 minutes.
WARNING
Risk of injury due to live parts!
When the housing is open, contact protection is not provided
and EMC protection is limited.
Before opening the housing, switch off the power supply.
Before opening the housing cover, remove the cover
protector, and reattach it after closing the housing cover.
For sealing original spare parts should be used only.
NOTE
Spare parts can be ordered from ABB Service:
Please contact Customer Center Service acc. to page 2 for
nearest service location.