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2.
Caution
2.1 Cautions when installing
• Never use the instrument if it is found damaged or
deformed when unpacked. Otherwise a fire, mal-
function, or failure may result.
• Check that the instrument is to the proper specifica-
tions. Otherwise damage or failure may result.
• Do not give a shock to the instrument by falling or
toppling it. Otherwise damage or failure may result.
• Avoid installing the instrument in the following plac-
es.
• A place where the ambient temperature goes be-
yond the range from 0 to 50°C (When provided
with Ethernet function)
• A place where the ambient humidity goes beyond
the range from 20 to 80% RH
• A place where condensation occurs
• A place where corrosive gases (sulfuric gases or
ammonia, etc., in particular) or flammable gases
exist
• A place where vibration or impact may be applied
to the instrument (permissible continuous vibra-
tion condition: 4.9 m/s
2
or lower)
• A place subjected to water, oil, chemicals, vapor,
or steam
• A place subjected to dust and high in salt or iron
content
• A place where inductive interference may have a
great effect, thus causing static electricity, mag-
netism, or noises
• A place subjected to heat accumulation by radi-
ant heat or the like
• A place that is affected by electromagnetic wave
from wireless machine or portable telephones.
• If the instrument is installed near other electronics
instruments, such as TV in particular, noises may
be caused. Take the following measures in these
cases.
• Place the instrument as far from the TV or the ra-
dio as possible (1m or more)
• Change the orientation of the antenna of the TV
or the radio.
• Use separate receptacles.
2.2 Cautions when installing to the panel
• When mounting this instrument against the panel,
pay attention not to apply stress to the case. Other-
wise the case may be damaged.
• Fix the instrument by fastening the screws at the top
and the bottom of the supplied mounting bracket.
• The panel to be used should be more than 2 mm
thick.
• Excessive torque will cause damage to front panel
frame or result in case deformation.
Tightening torque: 0.2 N·m
• If the panel front is subject to water splashes, use
panel packing between the unit and panel.
2.3 Cautions for wiring connection
• Only authorized workers should perform wiring.
Improper wiring may cause fire, failure, or electric
shock.
• Be sure to ground the instrument. Otherwise elec-
tric shock or malfunction may result.
• When cables are connected to terminals of the re-
corder unit, don’t apply pulling force to them exces-
sively. Excessive force to the terminal may result in
damage to the terminal or cable.
• Use the power cable that has the performance
equivalent to or higher than 600-V vinyl insulated
power cable (JIS C3307). Install the attached noise
filter within approximately 20cm from the power
terminal of this instrument. (Wind the power cable 1
to 2 turns.)
• Up to 2 solderless terminals should be used when
connecting cables to terminals. (Be sure to use an
insulation cap.)
(Note)
1) At the completion of wiring of the input termi-
nals, be sure to close the rear cover to ensure
the compensation of reference contact when
thermocouple input is used.
In case of thermocouple input, follow the steps
to stabilize temperature at the terminal.
• Be sure to attach input terminal cover.
• Don’t use a thick cable to prevent the effect
of radiation. The cable with a diameter of 0.5
mm
f
or less is recommended.
• Don’t mount other instruments near a fan to
keep temperature stable.
2) Connection of wiring to the external terminals,
exclusive use of ring crimp lugs with proper
insulating sleeve.
For power terminals and earth terminals, be
sure to use crimp style terminals for M4 screw.
For other terminals, be sure to use crimp style
terminals for M3 screw.
3) This unit has no power fuse which is remov-
able. Mount a power fuse outside the unit as
needed.
Recommended fuse rating: 250V AC, 2A
4) Don’t loosen screws that are secured to the
terminal case and power terminal.
• Input signal cables should be wired separately as
far as possible (30 cm or more) from power lines
and high-voltage lines to minimize the effect of
inductive noise. Shielded cables should preferably
be used. In this case, the shield braids should be
earthed at one point.
• If a large noise is generated from the power supply,
provide an isolating transformer and use a noise
filter.
∠α
= 60 to 90°
∠α
• Mount the unit horizontally, with
no tilt to the left or right (The
forward tilt should be 0° but the
unit may be inclined 0 to 30°
rearwards).
