Fluke 28IIEX Fluke 28IIEx User Manual - Page 22

Table 4. Pushbuttons cont., Button, Switch, Position, Function, Relative

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28 II Ex Users Manual Button E H Switch Position Continuity N MIN MAX recording Hz, Duty Cycle Any position  F (Relative mode) G Any position Any position Any position except diode test Table 4. Pushbuttons (cont.) Function Toggle the continuity beeper on and off. Switches between Peak (250 μs) and Normal (100 ms) response times. Toggles the Product to trigger on positive or negative slope. Turns on the button backlight and display backlight, makes them brighter, and turns off the backlights. Hold H down for 1 second to enter the HiRes digit mode. The "HiRes" icon shows in the display. To go back to the 3-1/2 digit mode, hold H down for 1 second. HiRes=19.999. Starts recording of minimum and maximum values. Steps the display through MAX, MIN, AVG (average), and current measurement. Cancels MIN MAX (hold for 1 second) Stores the current measurement as a reference for subsequent measurements. The display is zeroed, and the stored measurement is subtracted from all subsequent measurements. Push G for frequency measurements. Push again to go to duty cycle mode. 12

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28 II Ex
Users Manual
12
Table 4. Pushbuttons (cont.)
Button
Switch
Position
Function
E
Continuity
N
MIN MAX
recording
Hz, Duty
Cycle
Toggle the continuity beeper on and off.
Switches between Peak (250
μ
s) and Normal (100 ms) response times.
Toggles the Product to trigger on positive or negative slope.
H
Any
position
Turns on the button backlight and display backlight, makes them brighter, and turns off the
backlights. Hold
H
down for 1 second to enter the HiRes digit mode. The “HiRes” icon shows in
the display. To go back to the 3-1/2 digit mode, hold
H
down for 1 second. HiRes=19.999.
Any
position
Starts recording of minimum and maximum values. Steps the display through MAX, MIN, AVG
(average), and current measurement. Cancels MIN MAX (hold for 1 second)
F
(Relative
mode)
Any
position
Stores the current measurement as a reference for subsequent measurements. The display is
zeroed, and the stored measurement is subtracted from all subsequent measurements.
G
Any
position
except
diode test
Push
G
for frequency measurements.
Push again to go to duty cycle mode.