Averaging Time - Thermo Scientific 42i Instruction Manual

Operation

Averaging Time

Custom Ranges
Averaging Time
3-16 Model 42i Instruction Manual
The Custom Ranges screen is used to define the custom ranges.
The display shows the current custom range. The next line of the display is
used to set the range. To use the custom full-scale range, be sure to select it
(Custom range 1, 2, or 3) in the NO, NO
more information about selecting ranges, see
Ranges" above.
In the Main Menu, choose Range > Set Custom Ranges > Custom
●
Range 1, 2, or 3.
CUSTOM RANGE 1:
CURRENTLY:
SET TO:

CHANGE VALUE
RANGE AVG
The Averaging Time defines a time period (10 to 300 seconds) over which
NO, NO , and NO measurements are taken. The average concentration of
2 x
the NO, NO , and NO
2
front panel display and analog outputs are updated every 10 seconds for
averaging times between 10 and 300 seconds. An averaging time of 10
seconds, for example, means that the average concentration of the last 10
seconds will be output at each update. An averaging time of 300 seconds
means that the moving average concentration of the last 300 seconds will
be output at each update. Therefore, the lower the averaging time the faster
the front panel display and analog outputs respond to concentration
changes. Longer averaging times are typically used to smooth output data.
The Averaging Time screen for the single range mode is shown below. In
the dual and auto range modes, an Averaging Time Menu is displayed
before the averaging time screens. This additional menu is needed because
the dual and auto range modes have two averaging times (high and low).
The Averaging Time screen functions the same way in the single, dual, and
auto range modes. The following averaging times are available: 10, 20, 30,
60, 90, 120, 180, 240, and 300 seconds. Additional averaging times are
available in NO and NO
information about the manual mode, see
chapter.
In the Main Menu, choose Averaging Time.
●
, or NO
2
"NO, NO2, and NOx
55.6
000055.7 ?

MOVE CURSOR

SAVE
DIAGS ALARM
readings are calculated for that time period. The
x
modes: 1, 2, and 5 seconds. For more
x
"Auto/Manual
Ranges screen. For
x
Mode" later in this
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