Land 4500 MKII Premier, Operation And Maintenance Manual

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Model 4500 Premier Dust and Opacity Monitor
70
Average OD
0.037
Setting the Dust Gain value (multiple isokinetic samples)
1. When preparations for doing an isokinetic sample are in place, press the Maintenance key
for 3 seconds until the LED is illuminated. Enter the password using the
↑
and
↓
keys, then
press the ‘ENTER’ (
↵
) key. The default password is 10. The system is unlocked and allows
parameter access.
2. Select the CALIBRATION: Isokinetic Cal: Acquire function.
3. The display will show 'Start Isokinetic'.
4. Press 'ENTER' (
↵ ↵↵ ↵↵
) key at the same time as the isokinetic sampling period is started.
5. The display will now show ' End Isokinetic'.
6. Press 'ENTER' (
↵ ↵↵
↵↵
) key at the end of the isokinetic sampling period.
The Model 4500 Premier display will show the average optical density value, measured
during the isokinetic sampling period.
7. Write down the sample number and the average O.D. value.
IMPORTANT
A written record of all the O.D. values is essential.
The Model 4500 Premier will overwrite this value when the next sample is taken.
8. Repeat the sequence for each isokinetic sample.