FSUE “SPA “Analitpribor” is one of the leaders of gas-analysis instrument engineering in the Russian Federation. Production of gas-analysis equipment is from 1960.

Electrochemical gas analyzers ДАХ-М

 
 

Gas analyzers are designed for continuous, automatic monitoring of mass concentration of one of the hazardous substances: carbon monoxide (CO), hydrogen sulfide (H2S), sulfur dioxide (SO2), hydrogen chloride (HCl), chlorine (Cl2), nitrogen dioxide (NO2), ammonia (NH3), amyl (АТ, nitrogen tetroxide N2O4), odorant (RSH), nitrogen oxide (NO) and oxygen volume fraction (O2), in the air of working area and in the process media that contain hydrocarbons.

Application – monitoring of air conditions of working area of chemical, petrochemical and refining manufactures, other industries. For application in the conditions of the Extreme North and the Arctic.

 

Principle of operation  –  electrochemical.
Type of gas analyzer – fixed.
Material of enclosure - carbon-filled polyamide / aluminum / stainless steel.

 

Gas analyzers versions

Gas analyzer version

Supply voltage, V

Digital indication

Explosion protection

Type of output signal

ДАХ-М-01

10-24

+

1ExibIICT6X

4-20 mА

ДАХ-М-03

10-16

-

1ExibIICT6X

4-20 mА

ДАХ-М-04

10-16

-

1ExibIICT6X

4-20 mА

ДАХ-М-05

10-32

+

1ExibIICT6X

4-20 mА

ДАХ-М-05Х

10-32

+

1ExibIICT6X

4-20 mА, HART

ДАХ-М-05ХН

10-32

+

1ExibIICT6X

4-20 mА, HART

ДАХ-М-06

10-32

+

1ExibIICT6X

RS485

ДАХ-М-06ТР

10-32

+

1ExibIICT6X

4-20 mА, relay (250V; 1,0А), RS485

ДАХ-М-06ТРХ

10-32

+

1ExibIICT6X

4-20 mА, relay (250V; 1,0А), RS485, HART

ДАХ-М-06ТРХН

10-32

+

1ExibIICT6X

4-20 mА, relay (250V; 1,0А), RS485, HART

ДАХ-М-07

12-28

-

0ExdiaIICT6X

4-20 mА

ДАХ-М-07Н

12-28

-

0ExdiaIICT6X

4-20 mА

 

Basic technical characteristics

Name

Measurement unit

Measuring range

Alarm thresholds values
THRES.1                           THRES.2

 ДАХ-М-ХХ-СО-200

mg/m3

from 0 to 200

20

100

 ДАХ-М-ХХ-СО-1500

mg/m3

from 0 to 1500

*

*

 ДАХ-М-ХХ-H2S-40

mg/m3

from 0 to 40

10

40

 ДАХ-М-ХХ-SO-20

mg/m3

from 0 to 20

10

20

 ДАХ-М-ХХ-Сl2-25

mg/m3

from 0 to 25

1

5

 ДАХ-М-ХХ-NH3-600

mg/m3

from 0 to 600

20

100

 ДАХ-М-ХХ-NH3-2000

mg/m3

from 0 to 2000

*

*

 ДАХ-М-ХХ-O2-30

volume fraction, %

from 0 to 30

23

18

 ДАХ-М-ХХ-NO2-10

mg/m3

from 0 to 10

2

10

 ДАХ-М-ХХ-HCl-30

mg/m3

from 5 to 30

5

25

 ДАХ-М-ХХ-RSH-5

mg/m3

from 0 to 5

1

4

 ДАХ-М-ХХ-Сl2-50

mg/m3

from 0 to 50

*

*

 ДАХ-М-ХХ-O2-10

volume fraction, %

from 0 to 10

2

4

 ДАХ-М-ХХ-N2O4-20

mg/m3

from 0 to 20

5

10

 ДАХ-М-ХХ-NO-100

volume fraction, ppm

from 0 to 100

10

20

 ДАХ-М-ХХ-NO-200

mg/m3

from 0 to 200

20

100

 ДАХ-М-06-O2-25

volume fraction, %

from 0 to 25

23

18

Notes
01. Calibration component of gas analyzers ДАХ-М-05-RSH-5 is ethyl mercaptan (C2H5SH);
02. Calibration component of gas analyzers ДАХ-М-05-N2O4-20 is nitrogen dioxide (NO2);
03. Indication range of gas analyzers ДАХ-М-05-NO2-10 on digital display and digital communication channel – from 0 to 20 mg/m3.

Secondary power supply and alarm units БПС-21М are used for power of gas analyzers.

Gas analyzers ДАХ-М are supplied with the set of cable gland (for armored cable, metal hose, tubing) on special order. 

 

Technical characteristics
Certificates

  

 

 

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