Elma Instruments BM319, User Manual

Page: 42 / 56

Elma 319 side 42
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 Level (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 that 6/60/600/1000V is selected respectively
Ω
Ω Ω
Ω
Resistance, Continuity, Capacitance (Model 319 only), & 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.
CAUTION
Discharge capacitors before making any measurement. Large value capacitors should be
discharged through an appropriate resistance load.
CAUTION
Using resistance and continuity function in a live circuit will produce false results and may
damage the instrument. In many cases the suspected component must be disconnected
from the circuit to obtain an accurate reading
Continuity function is convenient for checking wiring connections and operation of
switches. A continuous beep tone indicates a complete wire.