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１．Outline
Electric charge will generate when a number of corpuscle contained in gas pass through and/or
get in touch with probe of dust monitor equipped with duct, plumbing pipe, etc.
The dust monitor amplifies this "Displacement of the charge" with the sensor, and sends the
amplified slight signal to the output unit.
This electric signal "Displacement of the charge" is both filtered and amplified and then output
instrumentation signal of 4〜20mA in proportion to dust amount and contact signal as well.
Important：View for density of dust monitor per Friction Electrification Mechanism
!
Output value of Friction Electric Charge Mechanic dust monitor will be variable due to
various environmental factors such as 「kind of particle」 「particle diameter」 「specific gravity
「current speed」through measure principle.
Under a regular environment, however, linear characteristic will not of course vary under that
environment.
As to considering density regarding to Dust Monitor of Friction Electric Charge Mechanism,
it requires you to consider influence due to variation of particle characteristics as afore
mentioned and it does not always meet density specified.
Density indicated on specification is for design development of machinery and is publicized
for you customers to use as a guideline in deciding the range.
When you customers decide the range, you please find the range and set it in which alarm level
is easy to set strictly from 0−100％ signal and becomes pulse signal.
By doing so, you can realize your management of exhaust drift.
If there is a need hereby to execute density management, you are recommended to decide density
equivalent to 0 - 100％.
On deciding above, you please investigate density of pulse and you can read signal as density
from current signal of machinery by jointly utilizing integral function, etc to get the range
acquiring signal nearest to actual density of 0−100％.
（The value you can get is compensated and is a relative conversion value but not absolute.）
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