Chapter 7 Configuration and Setup
7-29
Gas STEL Time Interval
The Gas STEL Time Interval is the interval for the STEL alarm for the application. The
last interval configured is shown on the display. If this is the interval for the present
application, press
ENTER
. The display changes to the next parameter to be configured.
Press
1
to change the interval. The STEL Time Interval Selection Display appears. Select
the interval for the application (Off, 5, 10, or 15 minutes). The display responds
"-ACCEPTED-" and then changes to the next parameter to be configured.
Gas Molecular Weight
Gas Molecular Weight sets the molecular weight of the gas for the application. The last
weight configured is shown on the display. If this is the weight for the present
application, press
ENTER
. The display changes to the next parameter to be configured.
Press
1
to change the weight. The Molecular Weight Enter Display appears. Key in the
desired weight (000.0 to 999.9) and press
ENTER
. If the entry is valid, the display
responds "-ACCEPTED-" and then changes to the next parameter to be configured. This
value converts concentrations unit of measure to mg/m
3
.
Gas Liquid Density
Gas Liquid Density sets the density of the vapor for the application. The last density
configured is shown on the display. If this is the density for the present application, press
ENTER
. The display changes to the next parameter to be configured. Press
1
to change
the density. The Density Enter Display appears. Key in the desired density (0.00 to 9.99)
and press
ENTER
. If the entry is valid, the display responds "-ACCEPTED-" and then
changes to the next parameter to be configured. This value is for reference only, and is
not used in any calculation.
Gas TWA Weighting
Gas TWA Weighting specifies the gas group TWA weighting of the gas for a multi-gas
application. The last weight configured is shown on the display. If this is the weight of
the present application, press
ENTER
. The display changes to the next parameter to be
configured. Press
1
to change the weight. The TWA Weight Enter Display appears. Key
in the desired weight (from 0 to 10000) and press
ENTER
. If the entry is valid, the
display responds "-ACCEPTED-." If this is not the last gas in the application, the display
returns to Gas Summary for the next gas. If this is the last gas in the application, the
display changes to the next parameter to be configured, Wave Count.
The group TWA is calculated by dividing the instantaneous concentration for each gas by
their respective GTWA weighting value, and then adding up all of the results. Time is
factored into this value by logging the average concentration over the user-defined
logging interval.
Содержание MIRAN 205B Series
Страница 4: ......
Страница 14: ......
Страница 40: ......
Страница 54: ......
Страница 96: ......
Страница 102: ......
Страница 108: ......
Страница 112: ......
Страница 118: ......
Страница 122: ...Chapter 13 Infrared Spectroscopy Tutorial 13 2 Figure 13 1 Electromagnetic Spectrum ...
Страница 142: ......
Страница 170: ......
Страница 196: ......
Страница 202: ......
Страница 210: ......