Functions; Backlighted Display; Auto Power Off (Apo); Auto Power Off Quick Test - Brymen BM157 User Manual

functions

/
Set the slide-switch function-selector to the /
selected function. Press SELECT button to toggle between  and
functions.

Backlighted display

Press the SELECT button for 1 second or more to toggle the display backlight on or off.

Auto Power Off (APO)

The meter turns off after approximately 30 minutes of neither switch nor button activity.
To wake up the meter from APO, press SELECT button or slide the function-selector to
OFF position and back on again. Always turn the function-selector to OFF when the
meter is not in use.

Auto Power Off Quick Test

Press-and-hold the 3W.4W button while powering the meter on. The LCD displays "
" to confirm activation right after the 3W.4W button is released. Quick test APO
& "
timing is 10 seconds after such activation.
Disabling Auto-Power-Off (APO)
Press-and-hold the HOLD button while powering the meter on. The LCD displays "
" to confirm activation right after the HOLD button is released.
& "
function position. Default at last
14
measurement
"
"