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OD-514B, OD-515B & OD-545B INSTRUCTION MANUAL
2.2 Specific precautions
1. Do not use the equipment immediately after moving it to a room with very different
temperature. Wait for a while until the equipment reaches room temperature.
2. Do not apply voltages that exceed the limits of probes or input connectors.
2.3 Descriptive Examples of Over-Voltage Categories
Cat I
Low voltage installations isolated from the mains
Cat II
Portable domestic installations
Cat III Fixed domestic installations
Cat IV Industrial installations
November 2000
Page 7
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