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<4. Wiring>
30
IM 01E25A01-01EN
4.4 Connecting to External
Instruments of Integral
Flowmeter and Remote
Transmitter
4.4.1 Wiring Precautions for Power Supply
Cables
When connecting to the power supply, observe the points
below. Failure to comply with these warnings may result
in an electric shock or damage to the instrument.
WARNING
• Ensure that the power supply is off in order to prevent
electric shocks.
• When opening the cover, wait for more than 20
minutes after turning off the power.
• Ensure the protective grounding terminal is grounded
before turning on the power.
• Terminate all the cable finish with round or rod
shaped crimp terminal (depending on the shape of
the terminal block) with insulation cover, and connect
them reliably.
• Install an external switch or circuit breaker as a
means to turn the power off (capacitance: 15A,
conforming to IEC60947-1 and IEC60947-3).
Locate this switch either near the instrument or in
other places facilitating easy operation. Affix a “Power
Off Equipment” label to this external switch or circuit
breaker.
Wiring Procedure
1. Check the instrument’s power is off, then remove the
terminal cover (transparent).
2. Wire the power supply cable and the functional
grounding cable to the power supply terminals.
3. Install the terminal cover.
F0422.ai
Functional grounding cable
Power supply
cable
Functional grounding cable
Power supply
cable
Integral type or AXG4A remote transmitter
Clamp Type (Optional code CT)
Integral type or AXG4A remote transmitter
M4 Screw Type
AXG1A remote transmitter
Functional
grounding
cable
Power supply cable
Figure 4.4.1 Power Cable Wiring
4.4.2 DC Power Connection
When using DC power as the power supply for the
transmitter, pay attention to the following points.
(1) Connecting Power Supply
IMPORTANT
Do not connect power supply with reversed polarities.
L/+ terminal: connect to + (power supply)
N/– terminal: connect to - (power supply)