7
IM-P-20200626-01
<3. Installing the Transmitter>
3.6 Connection Terminal
The figure below shows the wiring connection of the transmitter. The 2-wires must be connected to the
terminal
board. The wiring terminals can be
connected
without a screwdriver. The opening levers of the
terminal 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.
3.7 Wiring
The transmitter must always be connected to ground.
The transmitter must be connected with standard
two-wire shielded cable.
Do not
run signal wiring in open trays with power wiring
or near heavy electrical
equipment (Frequency controller 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. Please ensure that the instrument is not connected to ground twice to prevent
an ‘earth
loop’. 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.
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.
