Yokogawa IR400 - Manual (Page 22)

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IM 11G02N01-01E
3.5 Wiring
3.5.1 Power inlet
The power inlet is provided at the rear panel.
Connect supplied power cable to this power inlet.
Input/output terminal connector
Power inlet
Rear panel
Grounding 2-pole plug
Exclusive cable
(1 meter long)
Analyzer
Input/output
terminal module
Ferrite core
(to analyzer side)
•
Avoid installing this instrument near an electrical unit (high frequency furnace or electric welder)
that generates much electrical noise. If using the
instrument near such a noise generating unit is
unavoidable, use a different power line to avoid noise.
•
Mount a noise suppressor such as varister or spark killer
as shown at right figure to the noise generating unit when
noise is generated from relays or solenoid valves.
Mount the suppressor near the noise generating source,
or it will have no effect.
3.5.2 Input/output terminal module
This analyzer should be connected to the input/output terminal module by supplied exclusive
cable.
Plug this cable connector into the receptacle at the rear panel of the analyzer and the receptacle on
the PC board of the input/output module.
Connect the exclusive cable so that the ferrite core attached to the cable comes to the analyzer
side.
Main unit
power supply
Varistor or
spark killer
Install (connect)
near the source.
Noise
generating
source
When noise source is in the vicinity