Elma BM 251-252-255-257
side 40
Note:
*Input sensitivity varies automatically with function range selected before activating the Hz
function. 6V function range has the highest and the 1000V range has the lowest. It is
recommended to first measure the signal voltage (or current) level then activate the Hz
function in that voltage (or current) range to automatically set the most appropriate trigger
level. You can also press the RANGE button momentarily to select another trigger level
manually. If the Hz reading becomes unstable, select lower sensitivity to avoid electrical
noise. If the reading shows zero, select higher sensitivity.
*Number of Bar-graph pointer is used to indicate input range (sensitivity) selected. 1/2/3/4
pointers indicate 6/60/600/1000V, 6/10/-/-A, 60/600/-/-mA or 600/6000/-/-uA is selected in
corresponding V, A, mA or uA function respectively. ( “-” means range not available)
*The Hz of mV function is designed specially for logic level (3V or 5V family) frequency
measurement.
Ω
Ω
Ω
Ω
Resistance, Continuity,
Capacitance,
Diode test 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.
