TSI Instruments AEROTRAK 9310, Operation Manual

Page: 47 / 91

Operation 3-17
N O T E
The Channel Configuration screen has restrictions that must be
noted when Differential mode (

) is selected.
When differential
Δ
particle count or concentration is selected , t he
total number of counts is the number of particles between enabled bin
sizes. When particle concentration is cumulative
Σ,
the total number of
counts includes all particles larger than the bin size.
In Differential Display/Alarm mode, there are two constraints:

If alarming is desired, all channels must be enabled.

If channel selection is desired, then all alarms must be disabled .
The controls work in a mutually exclusive manner. When any of the
channel “Enable” boxes are unchecked, all “Alarm” enable boxes will
be cleared. When any of the “Alarm” boxes are checked, all of the
channel “Enable” boxes will become checked.
For the Cumulative modes (

), there are no such constraints. Any
combination of “Enable” and “Alarm” selections can be made.
System Setup Screen
Use the System Setup screen to select (or change) the power on
password, set up a password, select system configuration parameters,
select print settings, schedule printing and clear samples.
Change Power On Password Screen
If a Power On password has been previously set, that password must be
entered before being allowed to change the Power On password. If a
Power On password is set, then on instrument startup a password screen
will ask for the password before the instrument can be used. A blank