5
Rotary Switch
The Rotary Switch is the main control for the M2 Scope/Meter. It configures
the meter for the type of test, or function, to be performed. Each function is
indicated by a graphic icon, as explained in the table below:
Table 1-2
Rotary Switch options
Function
Icon
Description
Off
Switches power to the M2 Scope/Meter off. The
switch should be in this position when the tool is not
being used to prevent battery drain.
Volts DC
Measures direct current (DC) voltages within a range
of zero to 1000 volts. This setting is also used to
measure frequency (hertz), duty cycle (%), time
period (cycle, ms), and pulse width (Pw).
Volts AC
Measures alternating current (AC) voltages within a
range of zero to 1000 volts. This setting is also used
to measure frequency (hertz), duty cycle (%), time
period (cycle, ms), and pulse width (Pw).
Resistance
Measures the DC resistance to current in ohms in a
range of zero to open circuit (infinite).
Continuity/
Diode Check
Performs dual tests; circuit continuity and diode test
(forward drop). The “S” (special function) soft key
switches between the two tests.
Auxiliary
Performs three auxiliary tests; current (amperes),
pressure/vacuum, and temperature. Use the “S”
(special functions) and “Range” soft keys to switch
between the tests and output units. Pre-approved
sensors must be used to take valid measurements.
Capacitance
Measures capacitance in nanofarad (nF), millifarad
(mF), and microfarad (
μ
F).
Oscilloscope
(Waveform
Viewer)
Configures the M2 Scope/Meter to perform as an
oscilloscope, or waveform viewer.
Remote
Functions
Configures the M2 Scope/Meter to be operated
through a remote Display Device. Readings are only
shown on the Display Device screen. The controls on
the front panel of the M2 Scope/Meter become
inoperative when the rotary switch is in this position.
