Autoranging/Manual Range Selection; Relative Mode; Display Backlight; Low Battery Indication - FLIR EXTECH INSTRUMENTS EX520 User Manual

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 available ranges until you select the desired range.
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 and Frequency functions.
MAX/MIN
Note: When using the MAX/MIN function in Autoranging mode, the meter will "lock" into
the range that is displayed on the LCD when MAX/MIN is activated. If a MAX/Min
reading exceeds that range, an "OL" will be displayed. Select the desired range
BEFORE entering MAX/MIN mode.
1. Press the MAX/MIN key to activate the MAX/MIN recording mode. The display icon
"MAX" will appear. The meter will display and hold the maximum reading and will update
only when a new "max" occurs.
2. Press the MAX/MIN key again and the display icon "MIN" will appear. The meter will
display and hold the minimum reading and will update only when a new "min" occurs.
3. To exit MAX/MIN mode press and hold the MAX/MIN key for 2 seconds.

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 HOLD key for >1 second to turn on or off the display backlight function. The
backlight will automatically turn off after 10 seconds.
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. To disable the auto power off
feature, hold down the MODE button and turn the meter on.

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.
10 EX520-EU_ENG V2.3 1/08