# ON/Standby Switch

Press the ON/Standby switch to turn the instrument on. When you turn on the instrument, the settings normally match those that were in effect at the time when you last placed the instrument in standby. To ensure that the settings are correctly saved, before pressing the ON/Standby switch, close the oscilloscope application by choosing File > Exit.

Figure. Rear-Panel Mains Power-Cord Receptacle

Installation Category: Installation Categories (overvoltage categories) are determined by the transient overvoltage levels that may be expected. CAT I: Mains isolated. CAT II: Line voltage in appliance and to wall outlet. CAT III: Line voltage behind wall outlet to next level of distribution.

The front-panel ON/Standby switch places the instrument in Standby. The instrument is still energized.

The main power cord can be used as the system disconnecting device. It disconnects the mains circuits from the mains supply.

This is a Safety Class 1 Product (provided with a protective earthing ground incorporated in the power cord). The mains plug shall only be inserted in a socket outlet provided with a protective earth contact. Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous. Intentional interruption is prohibited.

Always use the three-prong AC power cord supplied with this instrument. Failure to ensure adequate earth grounding by not using this cord may cause product damage.

This instrument has autoranging line voltage input. Be sure the supply voltage is within the specified range.

This product is designed for use in INSTALLATION CATEGORY II and POLLUTION DEGREE 2 environment.

Install the instrument according to the enclosure protection provided. This instrument does not protect against the ingress of water. This instrument protects against finger access to hazardous parts within the enclosure.

If the Infiniium oscilloscope is mounted in a rack or cabinet, do not use the system's power switch to disconnect power from the Infiniium oscilloscope. Instead, use the Infiniium oscilloscope's front-panel power switch. Using the system power switch may corrupt the Windows registry requiring you to perform a recovery process to restore normal operation to the Infiniium oscilloscope.

Install the instrument so that the detachable power cord is readily identifiable and is easily reached by the operator. The detachable power cord is the instrument disconnecting device. It disconnects the mains circuits from the mains supply before other parts of the instrument. The front panel switch is only a standby switch and is not a LINE switch. Alternatively, an externally installed switch or circuit breaker (which is readily identifiable and is easily reached by the operator) may be used as a disconnecting device.

To prevent electrical shock, disconnect the Keysight Technologies oscilloscope from mains before cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally.