73VR2102 / 73VR2104 / 73VR2106
73VR2108 / 73VR2110 / 73VR2112
– 3 –
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POWER INPUT
• Power input rating & operational range: Check the power rating for the unit on the
specification label.
Rating 100 – 240V AC: 85 – 264V, 47 – 66 Hz,
approx. 25VA at 100V, approx. 35VA at 240V
Rating 24V DC:
24V ±10%, approx. 11W
• Supplying any level of power other than specified above can damage the 73VR21x or
the power source.
• The power cables and the signal I/O cables for the 73VR21x must be located separately.
• The main circuit cables (high voltage and high current), the signal I/O cables, and the
power cables should not be bundled together or placed near each other.
• To increase noise resistance of the power input wires, twist the strands before connecting.
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SAFETY PRECAUTION
• Before you remove the unit, turn off the power supply and input signal for safety.
• Do not use the 73VR21x in an environment where flammable gases are present. This
may result in an explosion.
• Do not disassemble or modify the 73VR21x in any way. Doing so may result in a fire
or an electrical shock.
• Do not strike the panel of the 73VR21x with a hard, heavy or pointed object, or press
the panel with excessive force, it may result in panel damage or injury.
• Do not block the 73VR21x’s ventilation openings or use it in areas where heat accumu
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lates. Additionally, do not store or use it under high-temperature conditions.
• Do not store or use the 73VR21x in locations subject to direct sunlight, or where exces
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sive dust or dirt is present.
• The 73VR21x is a precision instrument. Do not store or use it where large shocks or
excessive vibration can occur.
• Do not store or use the 73VR21x in environments subject to chemical evaporation
(such as that of organic solvents), or where there are chemicals and/or acids present in
the air.
• Do not use paint thinner or organic solvents to clean the 73VR21x.
• Observe the environmental conditions when using the 73VR21x.
• Wait at least for 5 seconds before turning on the power supply after it has been turned
off. The 73VR21x may not start up if the time interval is less than 5 seconds.
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ENVIRONMENT
• Indoor use
• The 73VR21x is designed to be mounted on a vertical panel. It is not suitable for a
slanted or a horizontal panel surface.
• Environmental temperature must be within 0 to 50°C (32 to 122°F) with relative humid
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ity within 30 to 85% RH in order to ensure adequate life span and operation.
• Desktop type cannot be mounted on a panel surface.
• The handle and rubber feet cannot be detached from desktop type unit.
