Continuous gas analysis, extractive Siemens

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Differentiation of cases: Ex zones/danger through flammable sample gas





Zone

Gas type

 

Sample gas non-flammable below the lower explosive limit (LEL)

Sample gas is flammable and/or is rarely, and then only briefly, above the LEL

Sample gas is flammable and/or is occasionally above the LEL

Category ATEX II 1G (zone 0)

 

Individual acceptance test (on request)

Individual acceptance test (on request)

Individual acceptance test (on request)

Category ATEX II 2G (zone 1)

Operating mode "Leakage compensation"

Analyzer

  • Ex analyzer EEx p (certificate ATEX 2022X)
  • Ex analyzer EEx p (certificate ATEX 2022X)
  • Ex analyzer EEx p (certificate ATEX 2022X)

Gas path

  • Pipe gas path
  • Pipe gas path
  • Pipe gas path

Flame arrester

—

—

Flame arrester in sample gas inlet and outlet

Monitoring

  • EEx p control device (certificate ATEX E 082)
  • EEx p control device sample gas pressure < 165 hPa, fail-safe (certificate ATEX E 082)
  • EEx p control device sample gas pressure < 165 hPa, fail-safe (certificate ATEX E 082)

Pressure switch

—

  • Differential pressure switch (when sample gas pressure is not controlled fail-safely)
  • Differential pressure switch (when sample gas pressure is not controlled fail-safely)

Category ATEX II 2G
(zone 1)

Operating mode "Continuous purging"

Analyzer

  • Ex analyzer EEx p (certificate ATEX 1708X)
  • Ex analyzer EEx p (certificate ATEX 1708X)
  • Ex analyzer EEx p (certificate ATEX 1708X)

Gas path

  • Pipe gas path
  • Pipe gas path
  • Pipe gas path

Flame arrester

—

—

Flame arrester in sample gas inlet and outlet

Monitoring

  • EEx p control device (certificate DMT 99 ATEX E 082)
  • EEx p control device (certificate DMT 99 ATEX E 082)
  • EEx p control device (certificate DMT 99 ATEX E 082)

Pressure switch

—

—

—

Category ATEX II 3G (zone 2)

Analyzer

  • Standard analyzer in field housing (addition E11: certificate ATEX 1686X)
  • Standard analyzer in field housing (addition E12: certificate ATEX 1697X)
  • Standard analyzer in field housing (addition E12: certificate ATEX 1697X)

Gas path

  • Pipe or hose gas path
  • Pipe gas path
  • Pipe gas path

Flame arrester

—

—

  • Flame arrester in sample gas inlet and outlet

Monitoring

—

  • EEx p control device (certificate DMT 99 ATEX E 082)
  • EEx p control device (certificate DMT 99 ATEX E 082)

Non-hazardous zone

Analyzer

  • Analyzer as rack unit or in field housing
  • Analyzer as rack unit or in field housing
  • Analyzer as rack unit or in field housing

Gas path

  • Pipe or hose gas path
  • Pipe gas path, recommended
  • Enclosure purging with inert gas (N2) recommended
  • Pipe gas path, recommended
  • Enclosure purging with inert gas (N2) recommended

Flame arrester

—

—

  • Flame arrester in sample gas inlet and outlet

Monitoring

—

—

  • Simplified monitoring of purging recommended


Ex configurations – principle selection criteria

 

Signal line routing

 

Within zone 1

From zone 1 to zone 2

From zone 1 to non-hazardous zone

Ex i isolation amplifier

Required

Required under certain conditions

(when energy feedback cannot be excluded)

Required under certain conditions

(when energy feedback cannot be excluded)

Isolating relay

Required

Required under certain conditions

(when energy feedback cannot be excluded)

Required under certain conditions

(when energy feedback cannot be excluded)



Additional units, selection criteria (ATEX 2G)

Use of OXYMAT 6 in hazardous area and/or for measurement of flammable gases

 

Certification (short codes)

Additional unit

 

Article No.

Gas

Dust

Purging unit

Flame arrester

Pressure switch

Ex i isolation amplifier

Ex i isolating relay

Category

Operating mode

 

Ex zone

Ex zone

7MB8000-

7MB8000-

7MB8000-

7MB8000-

7MB8000-

ATEX II 2G (Zone 1)

Leakage compensation

7MB2011-***0*-2***

X

—

2BB

6BA/6BB1)

5AA1)

3AB1)

4AB1)

7MB2011-***0*-3***

X

—

2BA

6BA/6BB1)

5AA1)

3AB1)

4AA1)

Continuous purging

7MB2011-***0*-6***

X

—

2CB

6BA/6BB1)

o

3AB1)

4AB1)

7MB2011-***0*-7***

X

—

2CA

6BA/6BB1)

o

3AB1)

4AA1)

ATEX II 3G (Zone 2)

Flammable gases

7MB2011-***0*-0***

E12

—

2CB

6BA/6BB1)

o

o

o

7MB2011-***0*-1***

E12

—

2CA

6BA/6BB1)

o

o

o

7MB2011-***0*-0***

E42

—

6BA/6BB1)

o

o

o

7MB2011-***0*-1***

E42

—

6BA/6BB1)

o

o

o

Non-flammable gases

7MB2011-***0*-0***

E11

—

o

o

o

o

o

7MB2011-***0*-1***

E11

—

o

o

o

o

o

7MB2011-***0*-0***

E41

—

o

o

o

o

7MB2011-***0*-1***

E41

—

o

o

o

o

Non-hazardous zone

Non-hazardous gas zone

7MB2011-***0*-0***

E40

—

o

o

o

o

7MB2011-***0*-1***

E40

—

o

o

o

o

7MB2011-***0*-0***

—

—

o

o

o

o

o

7MB2011-***0*-1***

—

—

o

o

o

o

o

7MB2021-****0-****

X

—

o

o

o

o

o

 

CLASS 1

Div 2

Flammable and non-flammable gases

7MB2011-***0*-0***

E20

—

1AA

6BA/6BB

o

o

o

7MB2011-***0*-1***

E20

—

1AA

6BA/6BB

o

o

o

7MB2021-*****-****2)

E20

—

1AA

6BA/6BB

o

o

o



— Combination not allowed

X Possible combination, no additional data required

o Not required

Ex configurations, possible combinations

1) Conditionally required: see table of Ex configurations, selection criteria

2) Installation in additional housing required

Use of ULTRAMAT 6 in hazardous area and/or for measurement of flammable gases

 

Certification and short codes

Additional unit

 

Article No.

Gas

Dust

Purging unit

Flame arrester

Pressure switch

Ex i isolation amplifier

Ex i isolating relay

Category

Operating mode

7MB2111-
7MB2112-

Ex zone

Ex zone

7MB8000-

7MB8000-

7MB8000-

7MB8000-

7MB8000-

ATEX II 2G (Zone 1)

Leakage compensation

*****-2*A*

X

—

2BB

6BA/6BB1)

5AA1)

3AB1)

4AB1)

*****-3*A*

X

—

2BA

6BA/6BB1)

5AA1)

3AB1)

4AA1)

Continuous purging

*****-6*A*

X

—

2CB

6BA/6BB1)

o

3AB1)

4AB1)

*****-7*A*

X

—

2CA

6BA/6BB1)

o

3AB1)

4AA1)

ATEX II 3G (Zone 2)

Flammable gases

*****-0*A*

E42

—

6BA/6BB1)

o

o

o

*****-1*A*

E42

—

6BA/6BB1)

o

o

o

*****-0*A*

E12

—

2CB

o

o

o

o

*****-1*A*

E12

—

2CA

o

o

o

o

Non-flammable gases

*****-0*A*

E41

—

o

o

o

o

*****-1*A*

E41

—

o

o

o

o

*****-0*A*

E11

—

o

o

o

o

o

*****-1*A*

E11

—

o

o

o

o

o

Non-hazardous zone

Non-hazardous gas zone

*****-0*A*

X

E40

—

o

o

o

o

*****-1*A*

X

E40

—

o

o

o

o

 

CLASS 1

Div 2

Flammable and non-flammable gases

7MB2111-*****-0*A*

E20

—

1AA

6BA/6BB

o

o

o

7MB2111-*****-1*A*

E20

—

1AA

6BA/6BB

o

o

o

7MB212*-*****-****2)

E20

—

1AA

6BA/6BB

o

o

o



— Combination not allowed

X Possible combination, no additional data required

o Not required

1) Required under certain conditions; see table of Ex configurations, selection criteria.

2) Installation in additional housing required

Use of CALOMAT 6 in hazardous area and/or for measurement of flammable gases

 

Certification

Additional unit

 

Article No.

Gas

Dust

Purging unit

Flame arrester

Pressure switch

Ex i isolation amplifier

Ex i isolating relay

Category

Operating mode

   

7MB8000-

7MB8000-

7MB8000-

7MB8000-

7MB8000-

ATEX II 2G (Zone 1)

Leakage compensation

7MB2511-***0*-0AE*

X

—

2BB

6BA/6BB1)

5AA1)

3AB1)

4AB1)

7MB2511-***0*-1AE*

X

—

2BA

6BA/6BB1)

5AA1)

3AB1)

4AA1)

Continuous purging

7MB2511-***0*-0AF*

X

—

2CB

6BA/6BB1)

o

3AB1)

4AB1)

7MB2511-***0*-1AF*

X

—

2CA

6BA/6BB1)

o

3AB1)

4AA1)

ATEX II 3G (Zone 2)

Flammable gases

7MB2511-***0*-*AJ*

X

X

—

6BA/6BB1)

o

o

o

7MB2511-***0*-*AC*

X

—

2CA/2CB

6BA/6BB1)

o

o

o

7MB2521-***0*-*AB*2)

X

—

acc. to

Certificate

6BA/6BB1)

o

o

o

Non-flammable gases

7MB2511-***0*-*AH*

X

X

—

o

o

o

o

7MB2511-***0*-*AB*

X

—

o

o

o

o

o

7MB2521-***0*-*AB*

X

—

o

o

o

o

o

Non-hazardous zone

Non-hazardous gas zone

7MB2511-***0*-*AG*

—

X

—

o

o

o

o

 

CLASS 1
Div 2

Flammable and non-flammable gases

7MB2511-***0*-*AD*

X

—

1AA

6BA/6BB

o

o

o

7MB2521-***0*-*AD*2)

X

—

1AA

6BA/6BB

o

o

o



X Possible combination, no additional data required

— Combination not allowed

o Not required

Ex configurations, possible combinations

1) Required under certain conditions; see table of Ex configurations, selection criteria

2) Installation in additional housing required

Use of ULTRAMAT 23 in hazardous area and/or for measurement of flammable gases

 

Certification and short codes

Additional unit

 

Article No.

Gas

Dust

Purging unit

Flame barrier

Pressure switch

Ex i isolation amplifier

Ex i isolating relay

Category

Operating mode

7MB233*-

Ex zone

Ex zone

7MB8000-

7MB8000-

7MB8000-

7MB8000-

7MB8000-

ATEX II 3G
(zone 2)

Flammable gases2)

*****-****

E20

—

o

o1)

o

o

o

Non-flammable gases2)

*****-****

E20

—

o

o

o

o

o

CLASS 1
Div 2

Flammable and non-flammable gases 2)

*****-****

E20

—

1AA

o1)

o

o

o



— Combination not allowed

X Possible combination, no additional data required

o Not required/not defined

1) Required under certain conditions

2) Installation in additional housing required

  

Ex approval

      
  

ATEX

CLASS I Div 2

ATEX

  

2G-LC

2G - CP

3G burn.

3G nbrn.

FM

CSA

3D (dust)

  

see basic MLFB

Z + E12

Z + E11

Z + E20

Z + E20

Z + E4X

   

except CALOMAT

 

except CALOMAT

Field device

        

U6F

ATEX 2022 X

ATEX 1708 X

ATEX 1697 X

ATEX 1686 X

3016050

1526657

ATEX 2278 X

U6F-S

ATEX 2022 X

ATEX 1708 X

ATEX 1697 X

ATEX 1686 X

3016050

1526657

—

        

O6F

ATEX 2022 X

ATEX 1708 X

ATEX 1697 X

ATEX 1686 X

3016050

1526657

ATEX 2278 X

O6F-S

ATEX 2022 X

ATEX 1708 X

ATEX 1697 X

ATEX 1686 X

3016050

1526657

—

        

C6F

ATEX 2022 X

ATEX 1708 X

ATEX 1697 X

ATEX 1697 X

3018862

1526660

ATEX 2278 X

C6F-S

ATEX 2022 X

ATEX 1708 X

ATEX 1697 X

ATEX 1697 X

o

1526657

—

C62F

ATEX 2022 X

ATEX 1708 X

—

—

—

—

—

C62F-S

ATEX 2022 X

ATEX 1708 X

—

—

—

—

—

         

19" rack unit

       

U6E

—

—

—

3016050

1526657

—

U6E-S

—

—

—

3016050

1526657

—

       

O6E

—

—

—

3016050

1526657

—

O6E-S

—

—

—

3016050

1526657

—

OU6E

—

—

—

3016050

1526657

—

OU6E-S

—

—

—

3016050

1526657

—

       

C6E

—

—

ATEX 1873 X

3018862

1526660

—

C6E-S

—

—

ATEX 1873 X

o

1526660

—

C62E

—

—

—

—

—

—

C62E-S

—

—

—

—

—

—

       

O61

—

—

—

—

—

—

O64

—

—

—

—

—

—

F6

—

—

—

(SET)

—

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