36 Keysight N9915-90020 User’s Guide
Preparing for Initial Use of Your New FieldFox
FieldFox High Temperature Protection
Summary of FieldFox Average Internal Temperature Protection
Behavior
Table 2-1 Summary of FieldFox Temperature Protection
Threshold Average Internal
Temperature
Description of Behavior
Duty cycling ~64°C Duty cycling is enabled when the internal average temperature of the
FieldFox reaches the duty cycling threshold of ~64°C. Power is turned
off between sweeps and delaying occurs for the next sweep.
In RTSA mode power is only turned off in Single Sweep or Hold. This
enables you to control your instrument’s temperature when you don’t
need to make a measurement by using the “Run/Hold” hardkey to
pause the sweep.
All applications (including RTSA): Display dims to 40% at ~64°C.
Maximum Protect (Initial) ~75°C When temperature reaches the maximum protection threshold
(~75°C) some applications take additional measures.
1 degree below shutdown
(RTSA Mode Only)
~77°C RTSA Shutdown Warning (~77°C) — (Top “WARNING...” message
displays for 9 sec). Red text at bottom of display remains on until
internal temperature returns to ~75.5°C. Refer to
Figure 2-3 on
page 35.
Shutdown ~78°C Instrument shuts down.
Exit Duty Cycle ~62.5°C The temperature required to come out of the duty cycle threshold.
To Next Page
Loading...
