Vega FIBERTRAC 31 User Manual

18
5 Connecting to power supply
FIBERTRAC 31 • Probus PA
43833-EN-170126
5 Connecting to power supply
5.1 Preparing the connection
Always keep in mind the following safety instructions:
Warning:
Connect only in the complete absence of line voltage.
•
The electrical connection must only be carried out by trained
personnel authorised by the plant operator.
•
If overvoltage surges are expected, overvoltage arresters should
be installed.
Note:
Install a separating facility for the instrument which is easy to access.
The separating facility must be marked for the instrument (IEC/
EN 61010).
The instrument is designed in protection class I. To maintain this
protection class, it is absolutely necessary that the ground conductor
be connected to the internal ground terminal. Take note of the national
installation regulations.
Supply voltage and current signal are carried on separate connection
cables if reliable separation is required. The supply voltage range can
dier depending on the instrument version.
The data for power supply are specied in chapter "Technical data".
General requirements
•
Use cable with round cross section for instruments with housing
and cable gland. To ensure the seal eect of the cable gland (IP
protection rating), nd out which cable outer diameter the cable
gland is suitable for.
•
Use a cable gland tting the cable diameter.
•
Unused cable glands do not oer sucient protection against
moisture and must be replaced by blind plugs.
Voltage supply
For power supply, an approved, three-wire installation cable with PE
conductor is required.
Signal cable
Use for the signal output a cable according to the respective bus
specications.
Metric threads
In the case of instrument housings with metric thread, the cable
glands are screwed in at the factory. They are sealed with plastic
plugs as transport protection.
You have to remove these plugs before electrical connection.
NPT thread
In the case of instrument housings with self-sealing NPT threads, it is
not possible to have the cable entries screwed in at the factory. The
Safety instructions
Voltage supply via mains
voltage
Select connection cable
Cable glands

Vega FIBERTRAC 31 Specifications

General

Brand	Vega
Model	FIBERTRAC 31
Category	Accessories
Language	English