Omega RD100B - Manual (Page 56)

2-12
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.