MBV MAS-100 Regulus - Page 119

Page 119 of 188
User Manual MAS-100 Regulus en.docx, Version: 4.0
11) Press Start.
Pressing Back reverts to the Adj./Cal. Mode menu.
12) The message Waiting will briefly appear.
No action from the user is required, the process will
continue automatically.
Pressing Abort interrupts the process and reverts
to the Adj./Cal. Mode menu.
13) The air sampler is now in the Flow sensor menu.
The parameters for the current adjustment point
are shown:
– Adjustment flow (Target) SLPM
– Blower PWM %
Modify the Blower PWM with the / buttons.
Do not press Next.
Pressing Abort interrupts the process and reverts
to the Adj./Cal. Mode menu.
Note
If a reference value must be recorded for documentation purposes, go to the
Flow Adjustment Data tab in the PC Software and use the ADC at target flow
value after the adjustment.
Annex A.2.1 provides additional background information.
14) Anemometer reading:
– Allow the anemometer 40 seconds to settle prior taking readings.
– Take 3 consecutive readings from the anemometer.
– Note these 3 flow values: F
1
, F
2
, F
3
– Calculate the mean flow value: F
m
= (F
1
+ F
2
+ F
3
)/3
15) Iteration:
- Modify Blower PWM
- Take anemometer reading
- Is the F
m
value firmly inside the range of Adjustment flow ±0.5 SLPM?
o If No: Redo iteration.
o
If Yes: Press the Next button and continue.
Example
Adj. Point
❶
Adj. flow 100.0 SLPM
Tolerance ±0.5 SLPM
Adj. flow range 99.5 - 100.5 SLPM
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