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Iso-Tech IDM99II Instruction Manual page 8

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9. MIN/MAX switch — This switch is used to display "MAX" and "MIN" values of measurement, press ≧2 seconds to
quit. In this mode, when "MAXMIN" is flashing the reading is of measuring signal.
10. Hold Switch — This switch is used to hold measured value for all functions, the "
annunciators are displayed. Conversions are made but the numeric display is not updated. This switch can
be invoked to "MIN/MAX" mode or ""PMIN/PMAX" mode.
11. Light switch — Press this switch to turn on or turn off the back-light.
12. Mode Switch — Press the switch to measure AC Voltage / Current or DC Voltage / Current in the voltage /
Current mode or to measure Resistance or continuity or diode in Ω/
RPM in Hz/RPM mode.
" and "RANGE"
/
mode or to measure Frequency or
7

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