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MarkJB / python-pms7003

Python script to test a Plantower PMS7003 serial laser particulate sensor
MIT License
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Units of Readings #2

Closed ronakdedhia18 closed 5 years ago

ronakdedhia18 commented 5 years ago

Hi Mark, I am getting this type of readings.

Date_Time | PM1 | PM2.5 | PM10 2019/02/14 09:52:35 | 260 | 2854 | 3936

Can you tell me what can be the unit of this readings?

Thank you.

MarkJB commented 5 years ago

Is that the output you are getting from my script? The reason I ask is my script should print the units...

ronakdedhia18 commented 5 years ago

Hi Mark, db1f5275-7392-4220-b0b9-ea01420b6b90 Attached the image of your script. Please see to it

ronakdedhia18 commented 5 years ago

Hi Mark, What is difference between Pm1.0 reading and PM1 Atmospheric concentration? For some other script i found on git hub i got this kind of output Date_Time | PM1 | PM2.5 | PM10 2019/02/14 09:52:35 | 260 | 2854 | 3936

Please let me know difference between yours and this output and which one is efficient.

MarkJB commented 5 years ago

Looks like the sensor output isn't as expected.

My first thought is that isn't the output from a PMS7003 or the firmware has been changed along with the output.

I'll try it on my sensor when I get a chance just to make sure it still works for me.

ronakdedhia18 commented 5 years ago

Please let me know as i am getting so much fluctuations in output from both the scripts and units of the output is also an problem. Please let me know what can be done. I am using Plant Tower PMS7003 sensor

ronakdedhia18 commented 5 years ago

Hi Mark, Also the range for 2.5 PM should be 0~500 ug/m3 as per data sheet but here its going upto 18176ug/m3. Please let me know as soon as possible.

Thank you.

MarkJB commented 5 years ago

According to the datasheet, the standard measurements for "standard particle mass concentration value refers to the use of industrial metal particles as equivalent particles for density conversion"

Hi Mark, What is difference between Pm1.0 reading and PM1 Atmospheric concentration? For some other script i found on git hub i got this kind of output Date_Time | PM1 | PM2.5 | PM10 2019/02/14 09:52:35 | 260 | 2854 | 3936

Please let me know difference between yours and this output and which one is efficient.