BAM 1020-9800 Manual Rev W.docx
Page 38
5.8 Field Calibration of the Flow System
– Standard Flow Mode
All BAM 1020 monitors configured for PM
2.5
and almost all units configured for PM
10
with
firmware 3.0 and later, are set with a FLOW TYPE of ACTUAL, and must be calibrated as
described above in Section 5.6. If the BAM 1020 must be operated in standard flow mode,
see below.
STANDARD Flow BAMs with a Temperature Sensor:
If the BAM 1020 is an older PM
10
unit without a separate CONC TYPE setting, or if the
operational FLOW TYPE must be set to STANDARD for some special reason, then the
easiest way to calibrate the flow is to temporarily change the FLOW TYPE from STD to
ACTUAL in the SETUP > CALIBRATE menu, then perform a normal actual flow audit or
calibration as described above. If this method is used, be sure to set the BAM 1020 back to
STD flow type when finished. This works as long as the BAM 1020 is equipped with an
ambient temperature sensor on input channel six.
