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micro DM-100 Digital Multimeter
Pushbuttons
Mode Button (MODE)
The Mode Button is used to select Ohms/Diode/Continuity or DC/AC current in the appro-
priate rotary switch settings.
Range Button (RANGE)
When the meter is turned on, it automatically goes into Autoranging. This automatically
selects the best range for the measurement being made and is generally the best mode for
most measurements. For selecting the range manually, perform the following:
1. Press the Range button. The "AUTO" display indicator will turn o .
2. Press the Range button to step through the available ranges until you select the range
you want.
3. Press and hold the Range button for 2 seconds to exit the Manual Ranging mode and
return to Autoranging.
Data Hold Button (HOLD)
The Data Hold function allows the meter to freeze a measurement for later reference.
1. Press the Data Hold button to freeze the reading on the display. The indicator "HOLD"
will appear in the display.
2. Press the Data Hold button to return to normal operation.
Relative Button (REL)
The relative measurement feature allows you to make measurement relative to a stored
reference value. A reference voltage, current or other value can be stored and measurement
can be made in comparison to that value.
1. Perform any measurement as described in the operating instructions.
2. Press the Relative button to store the reading in the display and the "REL" indicator will
appear on the display.
3. The display will now indicate the di erence between the stored value and the mea-
sured value.
4. Press the Relative button to return to normal operation
Backlight Button (
1. Press the Backlight button for 2 seconds to turn the display light on.
2. Press Backlight button again to exit the backlight mode.
Hz% Button (Hz%)
1. Press Hz% Button to measure Frequency or Duty Cycle while measuring voltage or
Current.
2. In Frequency mode, the frequency is measured in Hz units and in % mode the readings
from 0.1 through 99.9 are displayed.
3. Press Hz% Button to return to measurement of Voltage or Current.
DC/AC Voltage Measurement
Do not measure DC/AC voltage if a motor (or other high current equipment) on
NOTICE
the circuit is being switched ON and OFF. Large voltage surges may occur that can damage
the meter.
Do not measure DC/AC voltage if a motor (or other high current equipment) on the circuit is
being switched ON and OFF. Large voltage surges may occur that can damage the meter.
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