SwirlMaster FSS430, FSS450 VortexMaster FSV430, FSV450 | CI/FSS/FSV430/450-EN Rev. D 21
5.3 Electrical connections
DANGER
Danger of explosion if the device is operated with the
transmitter housing or terminal box open!
Before opening the transmitter housing or the terminal box,
note the following points:
— 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.
Improper work on the electrical connections can result in
electric shock.
— Connect the device only with the power supply
disconnected.
— Observe the applicable standards and regulations for the
electrical connection.
NOTE
When using the device in hazardous areas, note the
additional connection data in the chapter titled „Use in
potentially explosive atmospheres“ on page 5!
The electrical connection may only be established by
authorized specialist personnel and in accordance with the
connection diagrams.
The electrical connection information in the manual must be
observed; otherwise, the type of electrical protection may be
adversely affected.
Ground the measurement system according to requirements.
5.3.1 Cable entries
The electrical connection is made via a 1/2" NPT or M20 x 1.5
cable gland.
To ensure the IP rating 4X / IP67 for the transmitter, the cable
gland must be screwed into the housing (1/2" NPT female
thread) using a suitable sealing compound. Devices with
M20 x 1.5 are supplied with a cable gland installed.
If cable glands are not used, the red transport sealing plugs
must be replaced with suitable sealing plugs when the
transmitter is installed. This is because the transport sealing
plugs are not certified as protected against explosion. This
requirement is particularly relevant in hazardous areas.
Cable entries in potentially explosive atmospheres
For category 3 transmitters for use in Zone 2, a cable gland
approved for this type of protection must be provided by the
customer.
For this purpose, a corresponding M20 x 1.5 thread is
provided in the electronics housing.
For transmitters with the type of protection "Ex d / XP,
flameproof (enclosure)", the housing cover must be locked
with the locking screw.
If the transmitter is supplied with a sealing plug, the sealing
plug must be inserted on site with the sealing compound
Molykote DX.
If a different sealant is used, the responsibility rests with the
executing installer. At this point we expressly state that after
several weeks the housing cover can only be unscrewed with
an increased expenditure of force. This is not caused by the
threads, but instead is due solely to the type of seal.
To Next Page
Loading...
Need help?
General
