Keysight N9938-90003 User’s Guide                 29
Preparing for Initial Use of Your New FieldFox
Take the FieldFox Tour
11
Limit
Sets limit lines for quick Pass/Fail judgment “All about 
Limit 
Lines” on 
page 205
12
Run/Hold
Toggles between free Run and Hold/Single operation. “Run/Hol
d” on 
page 216
13
Cal
Displays a sub-menu for calibration functions “Calibrati
on 
Method 
Summary
” on 
page 106
14 Arrow keys Increases or decreases a value or setting. --
15 Returns to the previous menu selection.  --
16 Rotary knob Highlights an item for selection, or enables incremental changes to values.  --
17 Softkeys Allows selection of settings for configuring and performing measurements, and 
for other FieldFox functions.
--
18 Screen Transflective screen, viewable under all lighting conditions. If you are using your 
FieldFox in direct sunlight, you do not need to shield the display from the 
sunlight. In bright lighting conditions, the display is brighter and easier to read 
when you allow light to fall directly on the screen. Alternative color modes exist 
that maximize viewing in direct sunlight conditions, as well as other conditions 
such as nighttime work.
Clean the Transflective screen with gentle and minimal 
wiping using Isopropyl alcohol applied to a lint-free cloth.
“Screen 
Tour” on 
page 33
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