3M 3MTM Marine Instruments User Manual


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Overview of running measurements
Quick Help List: typical gas, particulates,or air quality measuring overview
1. Turn the EVM on and check the battery power.
2. Reset/Clear memory, if necessary (Start\File System menu).
• This will clear out data history before your logging begins to ensure you
havesufcientmemoryspace.
3. Set-up your session parameters either in 3M
TM
Detection Management Software (DMS)
or via the instrument’s Setup screen.
4. Verify the time and date is set correctly (Setup\Time-Date menu).
5. Calibrate each sensor/parameter via the Calibration screen.
6.PlacetheEVMinaspeciclocationforareamonitoring.
7. Press the key to Start logging.
8. When you are ready to end your logging, press key.
9. Review your results either on the instrument (via the File System screen) or
download to DMS for further analysis (graphs/charts, saving and printing).
Particulate Measurements
Particulate setup
1. To change particulate settings select: Setup\Particulate.
2.Particulatescreenappearsandincludesthefollowingadjustableelds:
• Particulateeld(enable/disablepumpcollection),Proleeld(applyinga
correction factor), and Gravimetric mass/volumeelds(displaysaccumulatedmass
andairvolume.Theseeldsareresetwhenperforminggravimetricsampling.)
Adjusting the Impactor
To adjust the impactor, turn the turret until one of the following is selected: PM2.5, PM4,
PM10,orPM(alldustrangingfrom0μm-100μm).
•The example below illustrates the impactor set to PM 2.5.
Align to impactor arrow
PM 2.5
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