3-42 | IPS-4 Dual Bench (UV / IR) Analyzer
Setting Sample Response Time
Sample response time can also be used as a parameter for setting the
Aspirator Pressure
. Response time is determined by switching the analyz-
er from
Zero Gas Flush
mode to
Measure
mode and recording the time it
takes the analyzer to display the first reading after the switch.
To check the sample response time:
1. Observe the output concentration from the
HOME
screen.
2. Press the
SETUP
soft key to display the
SETUP
menu and then press
the
DOWN
arrow key until the
Calibration
sub-menu item is displayed
and selected.
3. Manually zero the analyzer. To do this, press
ENTER
to display the
Calibration
screen. Use the
DOWN
arrow key to select
Start zero
calibration
and press
ENTER
. The message “
Please wait ...
” will appear
while the analyzer initializes and performs the calibration function.
Run the manual zero for 10 minutes. For more information about set-
ting the Zero fluid flow rate, refer to “Adjusting the Zero/Span Fluid
Flow Rate” in this chapter.
4.
From the
Calibration
screen, select
Start measure
and press
ENTER
to
return the analyzer to Measure mode.
5. Press the
HOME
soft key to return to the
HOME
screen and observe
the analyte output concentration(s) again.
If the sample response time is adequate (first response after a Zero is
less than 30 seconds to T90), no further adjustment is necessary.
The sample response time may vary, depending on Sample Line
length.
NOTE
Содержание Western Research IPS-4
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Страница 218: ...A 2 IPS 4 Dual Bench UV IR Analyzer Analyzer Light Path UV Optical Bench Schematic...
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Страница 222: ...A 6 IPS 4 Dual Bench UV IR Analyzer Detector Board 100 2046...
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Страница 229: ...Appendix A Drawings A 13 MCU Board 100 2045...
Страница 230: ...A 14 IPS 4 Dual Bench UV IR Analyzer Xenon Lamp Power Supply Board 100 2061 UV Optical Bench...
Страница 231: ...Appendix A Drawings A 15 Infrared Source Assembly Interface Board 100 2838 IR Optical Bench...
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Страница 235: ...Appendix A Drawings A 19 Disconnect Enclosure Wiring Diagram Sheet 4 of 5...
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