Turb 2000 Series Installation and commissioning
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2.3 Electrical connections
WARNING
• Only qualified electricians should be allowed to perform the installation
of the instrument as it involves a line voltage that could endanger life.
• The electrician must have read and understood this manual and must
follow the instructions in this manual.
• Before starting any installation work make sure all cables are voltage
free.
• The instrument is equipped with a 100 … 240 V AC, 47 … 63 Hz
switching power supply. Before connecting the instrument check
whether the line power meets this specification.
• Install a circuit breaker prior to the power connection to allow for
service.
All of the electrical connections to the instrument are made through the field terminal box, which should
be located directly under the sensor portion of the instrument. The connections are labeled within the
terminal box and are self-descriptive (see Figure 5). Please follow all local and government
recommendations and methods for installation of electrical connections to and between the instrument
and other peripheral devices.
Plugs are inserted into the alarm and 4-20mA/RS-485 cable bulkheads when shipped, to ensure a
watertight seal. These plugs should be removed and discarded when cabling to either of these
connections.
The power cable bulkhead will accept cable diameters from 5.8 mm (.230 in.) up to 10 mm (.395 in.). All
terminals are designed to accept wires in the range of 0.08-2.08 mm² (28-14 AWG). All wires should be
stripped to a length of 6 mm (¼”) and fitted with wire end sleeves. A strain relief strap is provided to
reduce tension on the power terminals.
It is the user’s responsibility to assure that the watertight seal is maintained after the terminal box has
been wired for operation.
WARNING
If any of the bulkheads are not tightened and sealed properly around a
cable or plug, the ratings of the instrument will be jeopardized and
there is a possibility of creating a shock hazard.
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