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Operating Information
2–10
WFM 90 and WFM 91 Service Manual
H The instrument software version number is displayed when the Configura-
tion menu is open with the DISPLAY category selected.
H The LOW BAT message is displayed when the instrument is battery operated
and the remaining battery power has reached a critically low level. The
remaining length of time that the instrument can be operated reliably is
dependent on the current operating mode.
H The MISSING SYNC message appears in all video display modes when the
signal reference has been lost.
You can reset the front panel and menu settings to the factory-specified default
settings through the Configuration menu. Monitoring adjustments such as signal
position, vector phase, and picture hue are also set. The factory settings are listed
Table 2–1.
Table 2–1: Front panel and menu default settings
Instrument Parameter Factory Default Setting
Display mode Waveform
Signal reference Internal
Filter Flat
DC restorer speed Slow
Gain X1
Variable gain Off
Sweep 2H (2 Line)
Mag Off
Bars 75%
Setup (WFM 90 only) Yes
Alt Phase (WFM 91 only) Off
Reference dBu 0 dBu
Headroom 3 dB
WIP location Bottom right
Alarms Off
Safe Action Off
Safe Title Off
Vertical shift Off
Backlight time-out Disabled
Instrument time-out Disabled
Default Settings