Extech Instruments VPC300 - Zero the Particle count Sensor

13VPC300‐en‐GB_v1.55/15
ZerotheParticlecountSensor
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Particles must be purged (removed) from the sensor before and after each use in a high
samplecountenvironment.
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Zerothesensor:
1. UnscrewandremovetheIsokineticprobeandattachtheZerocountfilter.
2. TurnonthemeterandintheSetupmode,
a. SettheSamplemode
toCumulative.
b. SettheChannelDisplaytoensureallchannelsareselected.
c. SetSampletimeto60seconds
d. SetSampleCycleto10
3. Startthemeter
4. Allowthemetertorununtilalloftheparticlecountsreadzero.Youmayneedto
runthemeter
multipletimestoensurethatallchannelsreadzero.
5. Turnoffthemeter.
6. RemovetheZerocountfilterandattachtheIsokineticprobe.
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