Calibration - Arbiter Systems 1088A Operation Manual

C.19 Option 28: Time, Frequency and Phase Monitor
Using RS-232C Port
To set up Option 28 using the RS-232C port, please follow the guidelines in Section 9.2.13 on
page 90.
Viewing Option 28 Information
View the deviations on the front panel display as follows:
1. To view the System voltage and phase angle, press the EVENT/DEVIATION key on the
front panel:
2 To view ∆ F and ∆ T, press the EVENT/DEVIATION key a second time:
3 To view System frequency and time, press the EVENT/DEVIATION key a third time:
NOTE: Selection of Option 28 results in the deactivation of the Event front panel displays. The
event displays may be re-enabled if desired, by entering the SET EVENT/DEVIATION menu and
following the procedure below. This choice is only available when Option 28 is installed in the unit.
4 Use the SETUP key and access the SET EVENT DEVIATION? setup menu. Press ENTER
to display the following:
5 To view Option 28 only, press the UP key, then press the front panel key EVENT /DEVIA-
TION to display Option 28 measurement information.
6 To enable Event/Deviation A and B displays as well, press the DOWN key and config-
ure the Channel Mode, Time, and Recorder Channel.
EVENT/DEVIATION to sequentially display all three channels. For a detailed description,
refer to Section 5.2.2.
C.19.5

Calibration

The clock is now configured for operation. Calibration for phase and amplitude are not necessary for
most applications, however if necessary, can be performed. Specifically, these calibrations have no
effect on system time and frequency measurements, and are unnecessary if only time and frequency
are required.
Uncalibrated phase accuracy is usually less than 0.3 degree, and can be reduced to 0.1 degree typical
and 0.2 degree guaranteed with calibration. Uncalibrated amplitude accuracy is usually less than
1%, which is the typical performance of this measurement. Amplitude accuracy is not guaranteed,
and amplitude measurements are provided primarily to verify that the unit is properly connected
and receiving the expected signal level.
System Input 114.91 V
Phase 359.60
System ∆ F -0.0010 Hz
∆ T +0.0000 Sec
System Frq 59.993 Hz
Time 19:39:25.4327
DISPLAY OPT 28 ONLY?
UP = YES DOWN = NO
Then press the front-panel key
181