Model 380942 Version 2.0 July 2006
5
Advanced Features
Relative Measurements
1) Press the ZERO key. The displayed reading will zero and the word ZERO will appear
on the upper portion of the LCD.
2) All subsequent measurements will now be displayed with respect to the zeroed
reading. For example, if a 20A reading is zeroed and a 30A reading is subsequently
measured, the LCD will display 10A.
3) To return to normal operation, press and hold the ZERO key for 2 seconds until the
word ZERO switches off.
4) Note that Relative mode is not available if MIN/MAX mode is enabled.
Data Hold
To freeze the current reading on the LCD, press the Data Hold key. The word HOLD will
appear on the LCD while the meter is in the Data Hold mode. To release the Data Hold
function and return the meter to normal operation, press the Data Hold key again. The
word HOLD will switch off.
MIN/MAX Readings
Pressing the MIN/MAX key allows the meter to display the highest and then the lowest
readings encountered. Press the MIN/MAX key once to view the minimum reading, press it
again to view the maximum reading. Note that the meter will only change its displayed
reading when a measurement is taken higher than the previous MAX or lower than the
previous MIN readings. The HOLD display icon (along with the MIN or MAX icon) will
appear on the LCD in MIN/MAX mode. Pressing the MIN/MAX key a 3
rd
time returns the
meter to normal operation.
Auto Power Off
To extend battery life, the meter will auto power off after 30 minutes of operation. To
resume operation, either turn the meter OFF and then ON again, or press the HOLD
button. To disable the auto power off function, press down the “HOLD” key while turning
the meter on.
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