7
measurements normally set the most appropriate trigger level. You can also press the
RANGE
button momentarily to select another trigger level (voltage range) manually. If the
Hz reading becomes unstable, select higher voltage range to avoid electrical noise. If the
reading shows zero, select lower voltage range.
Note: In
dBm
+Hz
function, power up default reference impedance will be displayed for 1
second before displaying the dBm readings. Press
dBm-
Ω
Ω
Ω
Ω
(
RANGE
) button momentary to
select different reference impedance of 4, 8, 16, 32, 50, 75, 93, 110, 125, 135, 150, 200,
250, 300, 500, 600, 800, 900, 1000, up to 1200
Ω
Ω
Ω
Ω
. Last selection will be saved as power up
default for repeat measurement convenience. Manual trigger level selection on Hz reading is
not available.
DC+ACV
+ACV
(525, 521, 829 only), DCV, DCV
+ACV
functions
Press the
SELECT
button momentarily to select the
subject functions in sequence. Last
selection will be saved as power up default for repeat measurement convenience.
525, 521, 829:
DCmV, DCmV
+ACmV
, DC+ACmV
+ACmV
, Logic-Level
Hz & Duty%
Press the
SELECT
button momentarily to select the
subject functions in sequence. Last
selection will be saved as power up default for repeat measurement convenience.
827, 822, 821:
DCmV, DCmV
+ACmV
, Logic-Level
Hz & Duty%
Press the
SELECT
button momentarily to select the
subject functions in sequence. Last
selection will be saved as power up default for repeat measurement convenience.
