Temperature Measurements; Display Backlight; Battery Check - Extech Instruments 411 User Manual

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TEMPERATURE MEASUREMENTS

1. Set the function switch to the TEMP position.
2. Insert the Temperature Probe into the Temperature Socket,
making sure to observe the correct polarity.
3. Press the ºC or ºF button for the desired units.
4. Touch the Temperature Probe head to the part whose
temperature you wish to measure. Keep the probe touching
the part under test until the reading stabilizes.
5. Read the temperature in the display.
Note: The temperature probe is fitted with a type K mini
connector. A mini connector to banana connector
adaptor is supplied for connection to the input banana
jacks.

DISPLAY BACKLIGHT

Press and hold the
automatically turn off after 15 seconds.

BATTERY CHECK

The
CHECK function tests the condition of the 9V battery. Set the function switch to the
200VDC range and press the CHECK button. If the reading is less than 8.5, battery replacement is
recommended.
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
If the
icon appears in the display, the battery voltage is low and the battery should be replaced.
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) function is selected. If this occurs, turn the meter off and reinsert the test lead into the
proper input jack for the function selected.
button to turn on the display backlight function. The backlight will
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EX411-en-GB_v4.3 4/15

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