Special Installation Instructions For Explosion Protection Types Flame Proof (Enclosure) / Explosionproof - ABB VA Master FAM540 Inbetriebnahmeanleitung

4.3.3 Special installation instructions for explosion protection types flame proof (enclosure) /
Explosionproof
ATEX / IECEx
The electrical connection for the flowmeter is made via the cable gland on the unit (observe
Fig. 19). The connection can also be made via an approved threaded conduit connection with
flame arrester (located directly on the meter). First remove the cable gland, but leave the
1/2" NPT adapter on the meter. Comply with requirements in EN 60079-1. There must be a
separate examination certificate for the threaded conduit connection. Use of cable and wire
entries as well as plugs of simple design is prohibited. Close unused openings in accordance
with EN 60079. When using pipeline systems, install the ignition blocks directly on the housing.
Connection via pressure-resistant cable gland
The
7.2 ...11.7 mm (0.28... 0.46 inch). After installing the cable in the fitting, tighten the lock nut
using a torque of 32.5 Nm. Use an additional strain relief device in the housing to secure the
connecting cable.
FM / cCSAus
The electrical connection for the flowmeter can be made via approved threaded conduit
connections with a flame arrester (located directly on the meter). First remove the plastic
protection cap, but leave the 1/2" NPT adapter on the meter.
Important
There must be a separate examination certificate for the threaded conduit connection. Use of
cable and wire entries as well as plugs of simple design is prohibited. The conduit fittings are
not included in the meter's scope of supply.
Electrical connection for protection type Encapsulated device / Explosion-proof
Fig. 19
CI/FAM540-X1
outer diameter of
VA Master FAM540
the unshielded connecting
2 3 4
Gasket Sleeve Lock nut
Ex relevant specifications
cable must
Strain relief
1
G00445
be between
EN - 21