EX420-EU_ENG
V3.1
6/09
12
AUTORANGING/MANUAL RANGE SELECTION
When the meter is first turned on, it automatically goes into AutoRanging. This
automatically selects the best range for the measurements being made and is generally
the best mode for most measurements. For measurement situations requiring that a range
be manually selected, perform the following:
1.
Press the RANGE key. The
AUTO
display indicator will turn off.
2.
Press the RANGE key to step through the available ranges until you select the range
you want.
3.
To exit the Manual Ranging mode and return to AutoRanging, press and hold the
RANGE key for 2 seconds.
Note:
Manual ranging does not apply for the Capacitance, Frequency and Temperature
functions.
RELATIVE MODE
The relative measurement feature allows you to make measurements relative to a stored
reference value. A reference voltage, current, etc. can be stored and measurements made
in comparison to that value. The displayed value is the difference between the reference
value and the measured value.
1.
Perform the measurement as described in the operating instructions.
2.
Press the REL button to store the reading in the display and the "REL" indicator will
appear on the display.
3.
The display will now indicate the difference between the stored value and the measured
value.
4.
Press the REL button to exit the relative mode.
Note:
The Relative function does not operate in the Frequency function.
DISPLAY BACKLIGHT
Press the
key for to turn on or off the display backlight function.
HOLD
The hold function freezes the reading in the display. Press the HOLD key momentarily to
activate or to exit the hold function.
AUTO POWER OFF
The auto off feature will turn the meter off after 15 minutes.
LOW BATTERY INDICATION
The
icon will appear in the lower left conner of the display when the battery voltage
becomes low. Replace the battery when this appears.
WRONG CONNECTION INDICATION
The
icon will appear in the upper right conner of the display and the buzzer will sound
whenever the positive test lead is inserted into the 20A or uA/mA input jack and a non-
current (green, black or red) function is selected. If this occurs, turn the meter off and
reinsert the test lead into the proper input jack for the function selected.
