23
hose attached) and any significant decrease in flowrate is an indication that the sampling
pump requires replacement
•
Press parSYNC® program START, then proceed to the “Gases” tab
•
Allow system to sample ambient air for 30 seconds then draw span gas for at least 30 seconds or
until the value remains constant (NO
2
may require a longer period than the other gases) for a 10 to
20 second average
•
Press “Pause”
•
As necessary, review data files and update sensor configuration voltages
•
Review data stream, and note concentration values, if concentration values are the same as the
audit gas, no calibration update is needed.
•
If calibration reset is required, press “Raw” tab and locate measured portion of audit gas on the strip
chart. Select a 10 to 20 second portion of stable readings. Zoom to this section and perform the “Get
Average” function. This will show the average voltage reading pertaining to the audit gas.
•
Record the peak average sensor values below:
Span Concentration Avg. Span Voltage
NO
2
_________________=____________________
NO__________________=____________________
CO
2
_________________ =____________________
CO__________________=____________________
•
Press “Calibration” subtab on the “Config” tab to input the new span values and span concentration
values
•
Press “Test Setup” subtab on the “Config” tab, and “Config Save” to save the new calibration.
•
Close file by hitting the “stop”. Close the software.
5.3
Data Collection/System Setup
•
Install parSYNC®, CUBE™, and condensate trap in the vehicle; route sample and exhaust lines. Avoid
significant low spots in sample line between window and the condensate trap that could collect
condensation (Be sure to check condensate trap during test stop for water accumulation)
•
Move vehicle to dynamometer or outside test start location
•
You may wish to start a new file for data collection, but note that each file has a column for time,
and can be separated during post processing.
•
Do one zero procedure before each test, sampling through the exhaust sample line
•
When ready to begin, press START on screen
•
Follow engine/test start procedures and conduct cycle
5.4
End Test Cycle
•
After cycle is complete, turn off the engine then press pause to stop data collection
•
Check and record a zero set and span gas set
•
Increment bag number to indicate final zero and span test versus the drive test in the data file then
START sampling
•
Allow the system to sample ambient air for 30 seconds then flow span gas for 30 seconds
•
To stop the data logging, press the STOP in the “Config” tab. A forced stop can also be done by
clicking the small red button in the upper left of the window.
•
Record ambient conditions, either from the lab or from weather site source
o
Temperature: _______________
Pressure: _______________
Humidity: _______________
•
Close program with the X in the upper right
Summary of Contents for parSYNC
Page 1: ...User Guide 3DATX Corp parSYNC miniPEMS Updated July 2020 ...
Page 21: ...21 ...
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