Special Installation Instructions For Meters With Explosion Protection Type "Encapsulated Device - ABB VA Master FAM540 Commissioning Instructions

4.2.5

Special installation instructions for meters with explosion protection type "Encapsulated device"

The electrical connection for the flowmeter is made via the cable gland on the unit. The
connection can also be made via an approved threaded pipe connection with flame arrester
(located directly on the meter). First remove the cable gland, but leave the ½" NPT adapter on
the meter. Comply with requirements in EN 60079-1. There must be a separate examination
certificate for the threaded pipe 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 stopping box 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.
Electrical connection for protection type "Encapsulated device"
Fig. 18
CI/FAM540-X1
outer diameter of
VA Master FAM540
Explosion-protection relevant information
the unshielded connecting
Gasket Sleeve Lock nut
cable must
Strain relief
G00445
be between
EN - 19