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Russia, Berdsk,
Lenin street 89/9 of 318

Optical dust counter (conimeter) SOM-16

The purpose

Dust counter SOM-16  is meant for measuring mass concentration of dust and optical density in the flue gases of fuel-burning plants operated on any type of fuel.

prod2

Advantages

The device is supplied with a blower for removing dust from lenses.

The work of electric filters does not affect the precision of measurements.

Current outputs set from the control and measurement ranges

The working principle

The work of the device is based on measuring the losses of optical power of LED radiation passing through a gas duct. The power losses are caused by absorption and dissipation of light by solid matter particles and depend on dust concentration.

The dust counter SOM-16 has two modifications: SOM-16.D and SOM-16.L.

Parameter

SOM-16.D

SOM-16.L

Ambient temperature

from 100  to 250 °C

from 0 to 800 С

Gas duct diameter

from 1 to 4 m

from 0.5 to 20 m

Application

Steel gas ducts with changeable geometry in operation

Rigid reinforced gas ducts/pipes 

Adjustment

In factory

On site

 

Configuration of SOM-16.D Configuration of SOM-16.L
prod2 1 1 – Measuring module
2 – Control module
3 – Air pump with an air filter
4 – Installation frame (optional)
prod2 2 1,3 – Measurement box (lighter, light receiver)
2 – Control module
4 – Air pump with air filter
5 – Installation frame (optional)

 

Metrological characteristics

Range of measured dust concentrations

Limits of maximum permissible error

Absolute error

Relative error,  %

from 0 to 500 mg/m3

± 100 mg/m3

-

from 500 to 10 000 mg/m3

-

± 20

from 10 to 100 g/m3

Not rated

Range of measured optical density

   

from 0 to 0.7

± 0.014

-

from 0.7 to 3

-

± 2

from 3 to 4

-

± 5

 

Technical characteristics

Characteristic

Value

Direct current output, mA (to be chosen by the user)

0 - 20  /  4 – 20 / 0 – 5

Output, bit-serial interface

RS-485

Alternating current voltage, V

187 – 230

Power input without air pump module, W, max

50

Power input of air pump module, W, max

700

Weight, kg, max

Measuring probe (SOM-16.  D – 1piece)

Measuring sensors (SОМ-16. L – 2 pieces)

Control module

Air pump module

 

13

10

20

21

Dimensions (diameter/length, height, width), mm, max

Sensor

Measuring module

Air pump module

 

120;150;120

380; 600;210

350; 550; 320

Pipe diameter for installing the instrument, m

from 0.5 to 20

Availability of straight portions of the pipe before and after measurement

Not required

Range of operating ambient temperature, оС

from minus °60 to plus °50*

Analyzed ambient temperature, max (SОМ-16.L), оС

 800

Analyzed ambient temperature, max (SОМ-16.D), оС

250

Relative humidity of ambient air for measuring module, without condensation, %, max

99

Average service life, years

10

Average time between failures, h

65000


*Ensured by placing the instrument in a heated box.

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