H3FA-B-DC12 Datasheet, PDF (9/10 Pages) Omron Electronics LLC – DIP Model Timer for PC Board Use Provides Contact and Solid-state Output

Safety Precautions
■ Precautions for Safe Use
Observe the following items to ensure the safe use of this product.
Environmental Precautions
• Store the H3FA within the specified ratings. If the H3FA has been
stored at a temperature of –10°C or lower, let it stand for 3 hours or
longer at room temperature before turning ON the power supply.
• Use the H3FA within the specified ratings for operating temperature
and humidity.
• Do not operate the H3FA in locations subject to sudden or extreme
changes in temperature, or locations where high humidity may
result in condensation.
• Do not use the H3FA in locations subject to vibrations or shock.
Extended use in such locations may result in damage due to stress.
• Do not use the H3FA in locations subject to excessive dust,
corrosive gas, or direct sunlight.
Usage Precautions
• Install a switch or circuit breaker that allows the operator to
immediately turn OFF the power, and label it to clearly indicate its
function.
• Be sure to wire the terminals correctly.
• Internal elements may be destroyed if a voltage outside the rated
voltage is applied.
• Maintain voltage fluctuations in the power supply within the
specified range.
H3FA
■ Precautions for Correct Use
• Do not use excessive force to turn the time setting knob. Otherwise,
it may be damaged.
• When more precise operating time settings are required, measure
the operating time prior to use and adjust the time setting knob
accordingly.
• Be very careful when handling terminal leads.
• Do not touch terminals with hands or objects that may be statically
charged from mounting, transport, or other activities. Otherwise,
the terminals may be damaged. Discharge static prior to handling
the Timers by touching a grounded object or by using another
method.
• Refer to the following diagram for the set values for various
operating times.
130
120
Operating
range
100
80
60
40
20
0 10 20 30 40 50 60 70 80 90 100
Set value (%)
• When cleaning the timer, confirm that the sealing tape is securely
in place. Do not clean without this sealing tape affixed.
Use alcohol type (IPA, ethanol) solvent, which are less chemically
reactive. Note that use of other solvents may damage the materials
used for the Timer. Clean the Timer in less than 2 minutes. The
cleaning solution must be 50°C or less.
The tails of the connecting leads are solder-plated with
consideration given to temperature at the time of soldering. When
soldering the leads, keep the temperature at 260°C±5°C and
complete soldering within 10 s. Do not use ultrasonic cleaning.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
In the interest of product improvement, specifications are subject to change without notice.
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