7
IM-P-20200627-01
3.6 Wiring
The figure below shows the wiring connection of the
transmitter. The 2-wires must be connected to + and - on
the terminal board. The wiring terminals can be
connected
without a screwdriver. The opening levers of the
terminals can be lifted and pressed down by hand. Lift the opening levers of the terminals and insert the
corresponding wires. Press down the levers by hand, the terminal spring will close and the wire is clamped.
The transmitter must
always
be connected with standard two-wire shielded cable. Do not run signal wiring in
open trays
with power wiring, or near heavy electrical equipment (e.g. Frequency controllers or heavy pumps).
Shielding
must always be connected at the side of the power supply. In case the process connection is already
connected to ground (e.g. via the tank or pipe line) do not connect the instrument to ground. In applications with
synthetic process connections, the enclosure (internal or external) must be connected to ground.
Reversing the polarity will not damage the transmitter, but the transmitter will not function until the + and – are
properly connected.
CAUTION
•
Please ensure that the transmitter is not connected to ground twice to prevent an earth loop.
<3. Installing the Transmitter>
1
2
3
1
Voltage Supply / Output Signal (4-20 mA)
2
Internal Ground
3
Terminal Connector
Insert the wires into the connector and
push the lever down by hand.
