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Russia, Berdsk,
Lenin street 89/9 of 318

Electrochemical gas analyzer PEM-4MS

Purpose

Gas analyzer PEM-4MS is meant for measuring the concentration of oxygen (O2), carbon dioxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO2), and sulfur dioxide (SO2) in the combustion gases of fuel-burning plants for all kinds of fuel. The application of the gas analyzer is technological and environmental control of the flue gases composition.

prod4

Advantages

  • Automated zero calibration;
  • Extended time of the sample pumping system’s work;
  • Convenient configuration for diagnostics and maintenance;
  • Changeable factory-calibrated sensors;
  • Current inputs for plugging in additional devices (optional).

           

The working principle

The gas analyzer consists of a measuring module, a sampling probe and a sample supply line.

The principle of the gas analyzer’s work is the work of a set of electrochemical measuring sensors.

The working mode is cyclic.

The method of probing a sample is forced, with a built-in flow booster.

Optionally, the device may have a heavy-duty system of sampling system.

 

Configuration

prod4 1 1 – Sampling probe
2 - PEM-4MC gas analyzer- measuring module
3 – Sample supply line

 

Metrological characteristics

The component to be identified

Measuring range

Maximum permissible error

Absolute

Relative

O2

from 0 to 5 % vol.fraction

over 5 to 21 % vol. fraction.

± 0.12 % vol. fraction

 ─

± 2.5 %

CO

from 0 to 200 million -1

over 200 to 4000 million -1

± 8 million-1

± 4 %

SO2

from 0 to 200 million -1

over 200 to 2000 million -1

± 12 million -1

± 6 %

NO

from 0 to 200 million -1

over 200 to 1000 million -1

± 16 million -1

± 8 %

NO2

from 0 to 100 million -1

± 10 million -1

Temperature of channel 2*

from 0 to 40 оС

over 40 to 600 оС

over 600 to 800 оС

± 2о С

-

Not rated

-

± 5 %

Not rated

               

Technical characteristics

Characteristic

Value

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

0 - 20  /  4 – 20 / 0 – 5

Output, bit-serial interface

RS485

Maximum time for showing indications T90 in measurement channels, sec, max

120

Heating time for PEM-4MC gas analyzer, min., max

10

Measuring cycle, min 

5-10

Voltage for alternating current, V

187 – 230

Power output without electricity consumption by heated sample transportation line, W, max

                        700

Weight, kg, max

Measuring probe

Measuring module

3

40

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

Sampling probe

Measuring module

--;--;1000

600; 250;800

Pipe diameter for installing the instrument, m

from 0.5 to 20

Range of operating ambient temperature, оС

from minus о50 to plus о50*

Analyzed ambient temperature, max, оС

 800

Relative ambient humidity for measurement 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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