NF WF1973, Инструкция по эксплуатации

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4.2 Screen Configuration and Operation
25
WF1973/WF1974
4.2 Screen Configuration and Operation
4.2.1 Screen configuration
The screen consists of three areas, as shown in the following figure.
■ Status display area
Displays the status of the equipment.
The following items are displayed.
• Uncalibrated status
Displayed when the calibration information of the equipment is lost due to a problem, and
the prescribed performance cannot be maintained. Since this is a malfunction, notify NF
Corporation or an NF distributor.
• Overheating status
Displayed when the internal temperature of the equipment becomes abnormally high.
When this status is displayed during use at an ambient temperature of 40°C or lower, this
indicates a malfunction, so notify NF Corporation or an NF distributor.
• Remote status
，
Displayed when the equipment is controlled via the USB or GPIB interface.
• External frequency reference status
Displays whether a valid signal is input or not, when the external frequency reference is
enabled.
• Sequence status/channel mode (WF1974 only)
The status when the sequence oscillation mode is selected is displayed.
In the WF1974, the mode when the channel mode is other than independent (2-phase,
constant frequency difference, constant frequency ratio, and differential output).
• 2-channel same value (Both) setting (WF1974 only)
Displayed when the same setting is done for CH1 and CH2.
Status display area
Setting area
Soft key display area
Display format
switching tabs
UCal
Temp
USB GPIB
Ref
Both
External frequency reference status
2-channel
same value
setting
(WF1974 only)
Remote status
Overheating status
Uncalibrated status
Sequence status/
channel mode
(WF1974 only)