FLIR DM91, Руководство пользователя

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FLIR DM91 USER MANUAL Document Identifier: DM91-en-US_AB 15
5. Operation
Caution : Before operating the device, you must read, understand, and follow all
instructions, dangers, warnings, cautions, and notes.
Caution : When the meter is not in use, the function switch should be set to the OFF
position.
Caution : When connecting the probe leads to the device under test, connect the COM
(negative) lead before connecting the positive lead. When removing the probe leads,
remove the positive lead before removing the COM (negative) lead.
5.1 Powering the Meter
1. Set the function switch to any position to switch on the meter.
2. If the battery indicator shows that the battery voltage is low or if the meter does not
power on, replace the batteries. See
Section 8.2, Battery Replacement .
5.1.1 Auto Power Off (APO)
The meter enters sleep mode after a programmable period of inactivity, see Section
6.8, Settings Menu . The default time-out is 20 minutes. The time can be set from 1 ~ 30
minutes (select OFF to disable the APO). 20 seconds prior to entering APO mode, the
meter beeps three times; at this point, press any button or turn the Rotary Switch to
reset the APO timer.
5.2 Auto/Manual Range Mode
In Auto range mode, the meter automatically selects the most appropriate measurement
scale. In Manual range mode, the user selects the desired range (scale).
Auto range mode is the default mode of operation. When you select a new function with
the function switch, the starting mode is Auto range and the indicator appears.
1. To enter Manual range mode, short press the button. To change the
range, press the button repeatedly until the desired range appears.
2. To return to the Auto range mode, long press the button until the Auto
Range indicator again appears.