Amprobe AM-270 Industrial-Multimeter - Manual (Page 19)

13
Beep-Jack ™ Input Warning
The meter beeps as well as displays “InErr” to warn the user against possible
damage to the meter due to improper connections to the µA, mA, or A input
jacks when other function (like voltage function) is selected.
Set Beeper Off
Press the Hz button while turning the meter on to disable the push button
operating beeper feature. However, the continuity and Jack Beep input
warning features remain.
Auto Power Off (APO)
The Auto Power Off (APO) mode turns the meter off automatically to extend
battery life after approximately 17 minutes of no activities. Activities are
specified as: 1) Rotary switch or push button operations, and 2) Significant
measuring readings of above 10% of range or non-OL  readings. That is, the
meter will intelligently avoid entering the APO mode when it is under normal
measurements. To wake up the meter from APO, press the SELECT button
momentarily or turn the rotary switch to the OFF position and then turn back
on again. Always turn the rotary switch to the OFF position when the meter is
not in use
Disabling Auto Power Off
Press the RANGE button while turning the meter on to disable the Auto Power
Off (APO) feature.
SPECIFICATIONS
General Specifications
Display: 3-4/5 digits 5000 counts lcd display
Update rate: Digital data 5 per second nominal; 52 segments
bar-graph 60 per second nominal
AC SENSING: True RMS
Operating temperature: 0°C to 45°C (32°F to 113°F)
Relative humidity: Maximum relative humidity 80% for
temperature up to 31°C decreasing linearly to
50% relative humidity at 45°C (113°F)