14
14
Low Alarm Setup
The low alarm setpoint should be established before first use and
checked annually thereafter. The alarm setup is stored to nonvolatile
memory and is not lost when the monitor loses power.
Procedure
1. Verify that the monitor was properly installed.
2. The power supply plug should be firmly in the power jack on the
back of the monitor and the power supply should be plugged into
an appropriate live electrical outlet. The monitor must be warmed
up for at least 10 minutes to reach a stable operating temperature.
3. Once the monitor warms up, note the velocity displayed through
the fume hood. This can be observed without changing the settings
by pressing the Down Button and watching the number that
alternates with the low alarm setting (the default setting is OFF).
4. Press and hold the Down Button for 5 seconds to access the low
alarm setup menu. The current alarm setting will be displayed.
5. Use either the Up or Down Button to change the displayed value to
match the actual desired low alarm point. Press the Test/Reset
button when the desired value is displayed.
