Turning on
Navigating
EVM Series User Manual
Navigating
Once the EVM is powered–on, press the Up/Down Arrow ▲/▼ key to select a
menu or to edit a field.
Press the Left/Right Arrow ◄/► key to scroll through measurement screen, start
screen, or to move right or left in a menu (i.e., setup menu).
Press Enter
key to open a selected screen (i.e. Setup screen). It is also used
to save Setup parameters.
The On/Off/Esc key also functions as a navigational tool and is used to move back one screen (or
escape). It can be used if you are viewing a Setup screen, File System screen Calibration screen or Unit
Information screen. At any time, you can cancel a set-up change, file system change (etc…) by pressing
the On/Off/Esc
key.
Indicators/Icons on the display
The EVM is equipped to notify you of operational/status updates. These indicators (or alert notices) are
located at the top of the screen. Table 2-2 explains the function of each indicator.
Stop – indicates the instrument is currently in the stop status (opposed to run).
Run - indicates the instrument is currently logging a session/study.
Battery charge status - This icon shows the renaming capacity of the batteries. A
full battery indicates the instrument is fully charged.
Pause – The pause indicator is shown during the 5 second countdown to prime the
airflow prior to entering the run mode when a log session is started.
Overload –will appear whenever the level measurement exceeds the range of the
instrument.
Altf key (Alternate Function key)- this icon appears below the Battery Charge
Indicator when alternate functions are being displayed. (For example this is used in
the Trend screen to view the time history on the chart.
UnderRange – will appear whenever a level measurement is below the range of the
instrument.
Run Time – displays the current elapsed log session run time. When elapsed time
is less than 100 hours, time is displayed as HR:MIN:SEC. When the elapsed time
has exceeded 100 hours, time is displayed as HR:MIN where HR uses 4 digits and
MIN uses 2 digits.
Table 2-2: Indicators (i.e., run, stop, battery, Altf)
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