Page 172 of 188
User Manual MAS-100 Regulus en.docx, Version: 4.0
14.2. MANUAL ADJUSTMENT
PROCEDURE
1) Perform the following steps in a clean and draft-free place, with all instruments placed
on a stable base.
2) Remove the perforated lid.
Place a MAS-100 Family Calibration Disk or a Petri dish inside the sampling head.
3) Check the lower edge of the perforated lid visually
to ensure that there are no notches or unevenness.
This could lead to a leak between the perforated lid
and the base.
Damaged perforated lids must be replaced.
4) Remount the perforated lid.
5) Place the anemometer on the perforated lid of the air sampler.
6) Start the anemometer by pressing the ON/OFF
button.
Press the Units button.
The anemometer is in volume flow mode, showing
L/min on the display.
7) Start up the air sampler by simultaneously pressing the buttons Yes and No and keep
them pressed
8) Release the buttons once the air sampler enters the
adjustment mode.
9) The air sampler is now in the K
3
menu.
10) Modifying the K
3
value:
– Low K
3
value = Low throughput
– High K
3
value = High throughput.
Press the YES button to increase the value until the desired value is reached.
or: Terminate the K
3
menu automatically, by waiting 60 seconds without user input.
11) 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
12) Iteration:
- Modify K
3
- Take anemometer reading
- Is the F
m
value firmly inside the range of 100 L/min ±0.5 L/min (99.5 - 100.5)?
o If No: Redo iteration.
If Yes: Press the NO button and continue.
Lid
Base
To Next Page
Loading...