Extech Instruments 470 - Manual (Page 18)

V5.0 5/04 18
DISPLAY BACKLIGHT
Press and hold the HOLD key for >1 second to turn on or off the
display backlight function. The backlight will automatically turn
off after 30 seconds.
Note: The HOLD feature will activate when the Backlight is
turned on. Press the HOLD key again to exit Hold.
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
The icon will appear in the lower left conner of the display
when the battery voltage becomes low. Replace the battery
when this appears.
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, black or red) function is selected. If this occurs,
turn the meter off and reinsert the test lead into the proper input
jack for the function selected.