Emerson 1700 사용자 설명서
16
Micro Motion
®
Model 1700 and 2700 Transmitters
Installing the Transmitter
2.7
Supplying power
In all installations, power must be provided to the transmitter. Refer to Section 2.3.3 for information
on the transmitter’s power supply requirements.
on the transmitter’s power supply requirements.
A user-supplied switch may be installed in the power supply line. For compliance with low-voltage
directive 2006/95/EC (European installations), a switch in close proximity to the transmitter is
required.
directive 2006/95/EC (European installations), a switch in close proximity to the transmitter is
required.
Connect the power supply to terminals 9 and 10, under the Warning flap. Terminate the positive (line)
wire on terminal 10 and the return (neutral) wire on terminal 9. Ground the power supply using the
equipment ground, also under the Warning flap. See Figure 2-9.
wire on terminal 10 and the return (neutral) wire on terminal 9. Ground the power supply using the
equipment ground, also under the Warning flap. See Figure 2-9.
Figure 2-9
Wiring the transmitter power supply
2.8
Rotating the display
If your transmitter has a display, you can rotate the display on the transmitter up to 360° in
90° increments.
90° increments.
WARNING
Removing the display cover in explosive atmospheres while the power is on
can cause an explosion.
can cause an explosion.
To reduce the risk of an explosion, before removing the display cover in explosive
atmospheres, be sure to shut off the power and wait five minutes.
atmospheres, be sure to shut off the power and wait five minutes.
Equipment
ground
ground
9
10
Warning flap