Lcd Display - Mastech MS2225A Operation Manual

harmonic and 20th harmonic. At the KW and W gears, short-
press the function key in the maximum/minimum value
measurement interface to scroll down, and switch and display
the maximum/minimum value.
3) Short press on alternating current, AC/DC voltage and
capacitance for relative value measurement mode.
Hz%/INRUSH/▲button
1) Short press on alternating current, alternating voltage and
HZ% gear for the switch among alternating current or
alternating voltage, frequency and duty ratio.
2) Short-press on the harmonic measurement interface at KW
and W gears to scroll up, and switch between the 1st harmonic
and 20th harmonic. At the KW and W gears, short-press the
function key in the maximum/minimum value measurement
interface to scroll up, and switch and display the
maximum/minimum value.
3) Long press on the alternating current gear for switching to
the measurement mode of inrush current.
MAX/MIN button: for the switch between the
maximum/minimum measurement.
OFF gear: for power off.
INPUT jack: input terminal of voltage, resistance, frequency,
duty ratio, capacitance, diode and circuit continuity.
COM jack: common terminal of voltage, resistance, frequency,
duty ratio, capacitance, diode and circuit continuity.
Change-over switch: for selection of functions and ranges.
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2.3 LCD display

Alternating current/Direct current
Diode and continuity
Auto range mode
Status of maximum measurement
Status of minimum measurement
Status of relative measurement
Status of automatic shutdown
LOW BATTERY
Status of reading holding
HOLD
Frequency measurement
HZ
Percentage (duty ratio)
Millivolt, volt (voltage)
Ampere (electric current)
Nano farad, microfarad and millifarad
Ohm, kilo-ohm and megohm (resistance)
Hertz, kilohertz and megahertz (frequency)
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