Extech Instruments 381676A User Manual page 4

Button Descriptions
Button Overview
BUTTON
H (Data Hold)
R (Range)
MAX (Maximum Hold)
NCV (Non‐contact Voltage Detector
M (Mode)
Button Details
DATA HOLD (H) Button
To freeze a displayed reading, press the DATA HOLD (H) button. The reading will freeze and the
D.H display icon will be visible on the LCD. To release the display, press the DATA HOLD (H)
button again. The D.H indicator will switch off and the display will again show real time readings.
MAXIMUM HOLD (MAX) Button
To display only the highest reading, press the MAX button. The M.H display icon will be visible
on the display while in the Max Hold mode. Now, the display will only change when a higher
reading than the displayed reading is encountered. To return to normal operation, press the
MAX button again (the M.H display icon will switch off).
MODE (M) BUTTON
The Mode (M) button is used to select AC or DC while in the VOLTAGE (V) or CURRENT (mA)
modes. The Mode (M) button is used to select diode ( ), Continuity ( ), or Resistance ().
Press and hold the Mode (M) button to take LOGIC tests while in the LOGIC mode.
RANGE (R) Button
The meter automatically selects the optimum range; however, the meter's ranges can be
selected manually. When using the Range (R) button to manually select a range, start with the
highest range and then select successively lower ranges until the desired range is reached. The
decimal place will move with each press of the RANGE button. Press and hold the Range (R)
button to return to the AUTO Range mode.
nd Quality Products Online at:
MODE
Any Mode
V, A, 
Any Mode
Any Mode
V, A, ,
4
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DESCRIPTION
Press to hold a reading on the display.
Press and hold while turning the
meter on to defeat APO
Press to Manually Range. Press and
hold to return to AUTO Range
Press to hold the Maximum reading on
the display
Press and hold for Non‐Contact
Voltage Detector (set the Function
switch to any position other than OFF)
Switch between AC and DC
Voltage/Current. Hold down to do
Logic level testing. Switch between
resistance, diode, and continuity
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381676A-en-GB_V1.1 08/15