DPO6000, MPO6000 Series Digital Fluorescent Oscilloscope Product Manual V1.3 It indicates that the user may not immediately harm the user if they do this. CAUTION It indicates that the user may cause damage to this product or other property if this operation is per- formed. Product symbol. The following symbols may appear on the product: Safety Warning Protective Test Ground Shell Earth Terminal Measurement category Measurement category DPO6000 / MPO6000 series digital oscilloscopes can perform measurement under measurement category I. WARNING This oscilloscope is only allowed to be used in the specified measurement category.
Measurement category definition Measurement category I Refers to measurements on circuits that are not directly connected to the mains. For example, make measurements on circuits that are not derived from a main power source, especially those that are protected (internal). In the latter case, the transient stress changes. Therefore, users should understand the instantaneous ability of the device. Measurement category II Refers to measurements made on circuits directly connected to low-voltage equipment. For example, make measurements on home appliances, portable tools, and similar de- vices. Measurement category III Refers to measurements in construction equipment.
For example, power distribution boards, circuit breakers, wiring (including cables, bus bars, junction boxes, switches, sockets) in fixed equipment, and equipment for industrial use and certain other equip- ment (for example, fixed motors permanently connected to fixed equipment) Take measurements. Measurement category IV 3