30
Startup Operation and Indication
5.2.2
Frequency/Time Deviation Key
Press the FREQ./TIME DEV key twice: once to view the measured line frequency and GNSS time;
a second time to view the signed error in system frequency, and the integrated total time deviation.
Resolution of time deviation is in milliseconds.
Figure 5.6: Freq./Time Dev. Display
5.2.3
Event Log Key
Press the EVENT LOG key successively to sequence through the events logged into the 1133A
flash memory. Events are numbered and labeled according to type of event (e.g. over voltage) and
“date and time stamped.”
Figure 5.7: Event Log Display
5.2.4
Status/Time Keys – Primary Functions
Press the Status/Time key to view any one of five, primary instrument status menus, which are
given here in sequential order. Continue pressing this key to cycle to a previous Status/Time view.
Press and hold the Status/Time key for approximately three seconds to access either the primary
or secondary instrument status menus.
Status, Receiver Condition
Status, Receiver Condition – GNSS: Locked or Unlocked with number of satellites Visible and
Tracked. IRIG-B: (Option 7) Locked or Unlocked with time quality indicator.
Figure 5.8: Status, Locked Display: GNSS or IRIG-B
