4
1. Installation precautions
Caution
This instrument is intended to be used under the following environmental
conditions (IEC61010-1): Overvoltage category
, Pollution degree 2
Ensure the mounting location corresponds to the following conditions:
• A minimum of dust, and an absence of corrosive gases
• No flammable, explosive gases
• Few mechanical vibrations or shocks
• No exposure to direct sunlight, an ambient temperature of 0 to 50
(32 to 122 )
that does not change rapidly, and no icing
• An ambient non-condensing humidity of 35 to 85%RH
• No large capacity electromagnetic switches or cables through which large
current is flowing
• No water, oil or chemicals or where the vapors of these substances can come
into direct contact with the unit
• Take note that ambient temperature of this unit must not exceed 50 (122 ) when
mounted through a control panel. Otherwise the life of electronic components
(especially electrolytic capacitor) may be shortened.
Note: Although the case of this instrument is made of flame-resistant resin, do not
install this instrument on or near flammable material.
2. Wiring precautions
Caution
• Do not leave wire remnants in the instrument, because they could cause a fire or
malfunction.
• Use the solderless terminal with an insulation sleeve in which the M3 screw fits
when wiring the LMD-100.
• The terminal block of this instrument is designed to be wired from the left side.
The lead wire must be inserted from the left side of the terminal, and fastened
with the terminal screw.
• Tighten the terminal screw using the specified torque. If excessive force is
applied to the screw when tightening, the terminal screw or case may be
damaged.
• When wiring, keep power lines away from communication lines.
• This instrument has no built-in power switch or fuse. It is necessary to install
them near the instrument.
(Recommended fuse: Time-lag fuse, Rated voltage 250V AC, Rated current 2A)