Operation Manual

Elma BM 82Xs &
BM52Xs
Page 45
Note: Hz Input sensitivity varies automatically with voltage (current function alike) range
selected. 1V range has the highest and the 1000V range has the lowest. Auto-ranging
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- (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. 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
(525s, 521s, 829s 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.
525s, 521s, 829s:
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.
827s, 822, 821s:
DCmV, DCmV
+ACmV
, Logic-Level Hz & Duty%