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PM4S
Precautions during usage
1. Avoid locations subject to
?ammable or corrosive gases,
excessive dust, oil, vibrations, or
excessive shocks.
2. Since the main-unit is made of
polycarbonate resin, avoid contact
with or use in environments
containing methyl alcohol, benzene,
thinners, and other organic solvents;
and ammonia, caustic sodas, and
other alkaline substances.
3. Power supply superimposed surge
protector
Although a surge protector will withstand
standard-waveform voltage with the
values in the next table, anything above
this will destroy the internal circuit. You
should therefore use a surge absorber.
12 V DC
100 to 120 V AC
24 V DC
200 to 240 V AC
4. In order to maintain the
characteristics, do not remove the
timer case.
5. When installing the panel, use the
ATA4811 mounting frame (Sold
separately).
6. If you change the operating voltage,
be sure not to allow leak current into
the timer.
7. Avoid leaving the unit powered
continuously. Leaving the unit
powered up with output set to ON
continuously for a long period of time
(about 1 month or more) will wear out
the electronic components. If you will
be keeping it powered continuously,
combine with a relay to create the
circuit shown below:
8. The timer setting dial should only be
turned within the range indicated on
the dial face. Turning it too far may
break the stopper and cause damage
to internal components.
500 V
? Surge waveform
4,000 V
R
T
R
[ ± (1.2 × 50) μ s uni-polar full wave voltage]
Acquisition of CE marking
R
T
Please abide by the conditions below
when using in applications that
comply with EN61812-1.
1. Overvoltage category III,
pollution level 2
2. The load connected to the output
contact should have basic insulation.
This timer is protected with basic
insulation and can be double-
insulated to meet EN/IEC
requirements by using basic
insulation on the load.
3. Please use a power supply that is
protected by an overcurrent protection
device which complies with the EN/
IEC standard (example: 250 V 1 A fuse,
etc.).
4. You must use a terminal socket or
socket for the installation. Do not
touch the terminals or other parts of
the timer when it is powered. When
installing or un-installing, make sure
that no voltage is being applied to any
of the terminals.
5. Do not use this timer as a safety
circuit. For example when using a
timer in a heater circuit, etc., provide a
protection circuit on the machine side.
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