Omega RD100B manual Power Supply Wiring, Precautions to Be Taken While Wiring the Power Supply

2.5 Power Supply Wiring

Precautions to Be Taken While Wiring the Power Supply

Make sure to follow the warnings below when wiring the power supply. To prevent electric shock and damage to the recorder, observe the following warnings.

WARNING

•To prevent electric shock when wiring, ensure the main power supply is turned OFF.

•To prevent the possibility of fire, use 600 V PVC insulated wire (JISC3307) or an equivalent wire for power wiring.

•Make sure to earth ground the protective earth terminal through a grounding resistance less than 100 Ω before turning ON the power.

•Use crimp-on lugs (designed for 4 mm screws) for power and ground wiring termination.

•To prevent electric shock, make sure to close the transparent cover for the power supply wires.

•Make sure to provide a power switch (double-pole type) on the power supply line in order to separate the recorder from the main power supply. Put an indication on this switch as the breaker on the power supply line for the recorder and indications of ON and OFF.

Switch specifications

Rated power current: 1 A or more

Rated rush current: 60 A or more

Use a switch complied with IEC 60947-1, 3.

•Connect a fuse between 2 A and 15 A in the power supply line. Use a fuse approved by CSA (for the use in North America) or VDE (for the use in Europe).

•Do not add a switch or fuse to the ground line.

Use a power supply that meets the following conditions:

Item	Power Supply Specifications
Rated supply voltage	100 to 240 VAC
Allowable power supply voltage range	90 to 132/180 to 264 VAC
Rated supply voltage frequency	50/60 Hz
Allowable power supply frequency range	50/60 Hz±2%
Maximum power consumption	Pen model: 40 VA, dot model: 40 VA

Note

Do not use a supply voltage in the range 132 to 180 VAC, as this may have adverse effects

on the measurement accuracy.

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