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6-5 Automatic
Calibration
The LV-40B, LV-40BR, LV-40BW, and LVS-30 low volume pumps and the LV-250 and
LV-250R PM2.5 samplers (hereinafter “low volume pumps” and “PM 2.5 samplers”) can
be calibrated automatically by connecting a dedicated communication cable (a
commercially available USB A-B cable for the LVS-30.)
6-5-1
Preparation for Automatic Calibration
Using the dedicated communication cable or USB A-B cable to connect the flow
calibrator to a low volume pump or PM2.5 sampler displays the auto-calibration screen
on the flow calibrator.
Items to Prepare
•
Vinyl tubing (included)
•
FC-L1 flow calibrator
•
Low volume pump or PM2.5 sampler
•
Hose inlet (Sold separately: Required if connecting to a PM2.5 sampler)
•
Communication cable for automatic calibration (sold separately as: Communication
cable with software for LV-250/LV-40B)
: For LV-40B, LV-40BR, LV-40BW, LV-250, LV-250R
•
USB A-B cable (commercially available): For LVS-30
(1) Switch the power ON for the low volume pump or PM2.5 sampler.
(2) Switch the power ON for the FC-L1 flow calibrator.
Note: Warm up the FC-L1 unit by operating it for at least 10 minutes and then press the
[A.ZERO] key.
(3) Press [COM.] on the low volume pump or PM2.5 sampler.
For the LVS-30, check that the [HOME] screen is displayed.
(4) Connect the dedicated communication cable (USB A-B cable for the LVS-30)
between the FC-L1 flow calibrator and either the low volume pump or the PM2.5
sampler.
Note: This changes the " " on the flow calibrator LCD screen to "
" and
causes the flowrate to flash.
For the LVS-30, the light blue LED showing that the instrument is operating will
flash.
Note that automatic calibration might increase the error factor of flowrates at
points not being calibrated.
