Amprobe AM-250 Digital-Multimeter - Manual (Page 13)

7
Manual or Auto-ranging
Press the RANGE button momentarily to select manual-ranging mode, and the
meter will remain in the range it was in, the LCD symbol
turns off.
Press the button momentarily again to step through the ranges. Press and hold
the button for 1 second or more to resume auto-ranging mode.
Note: Manual ranging mode feature is not available in Hz & Cx functions.
HOLD
The hold feature freezes the display for later view. Press the HOLD button
momentarily to activate or to exit the hold feature.
MAX
The max feature compares and displays the measured maximum value as fast
as 25ms in a single range, and with automatic up range capability. Press the
MAX button for 1 second or more to activate or to exit the max feature in
the voltage or current functions.
Sleep Mode
The meter will enter a low power consumption sleep mode automatically to
extend battery life after approximately 30 minutes of no rotary-switch or push
button operations. To wake up the meter from sleep mode, press any buttons
momentarily or turn the rotary-switch to an adjacent position. Always set the
rotary-switch to the OFF position manually when the meter is not in use.
SPECIFICATIONS
General Specifications
Display : 3-3/4 digits 4000 counts LCD display
Polarity : Automatic
Update Rate : 3 per second nominal
Operating Temperature : 0°C to 40°C /32 to 104°F
Relative Humidity : Maximum relative humidity 80% for temperature up to
31°C /88°F decreasing linearly to 50% relative humidity at 40°C /104°F
Altitude: Operating below 2000m
Pollution degree: 2
Storage Temperature: -20°C to 60°C /-4°F to 140°F, < 80% R.H.
(with battery removed)