Keysight 53210A, Руководство пользователя

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Preparation for Use 1
Keysight 53210A User’s Guide 33
Battery Operation
With Battery Option 300 installed and enabled , the 53210A counter can be
operated using battery power for up to three hours.
Removing AC power when the battery is enabled switches the counter to battery
power automatically with no interruption of operation. Similarly, there is no
interruption in the transition back to line power, provided line power is
connected before the battery is disabled .
Enabling and Disabling the Battery
When using the instrument with the Battery Option 300 for the first time after
purchase, or if the instrument has not been used for an extended period, the
battery must be charged before use. With line power connected and the
instrument either on or off, allow four hours for the battery to reach full charge.
WARNING
During battery operation, the maximum measured signal supplied by the user is
+ 42V .
Also, connect the instrument chassis to earth ground during battery operation to
minimize shock hazard. Any interruption or disconnection of the protective earth
terminal will cause a potential shock hazard that could result in personal injury.
Under battery power, the instrument chassis may float to the potential of the
measured signal supplied by the user.