Page 116 - Op_K_2025_absolute Links

Gas measuring sensor selection table

Type of gas / OEL- Measuring rel. gas density / Data sheet Type Item no. ADG Euro / pc.
Formula value* range install. height no.

Acetylene
C 2 H 2 0 – 100 % UEG 0,9 / ceiling 37201 GMF 2.P.C2H2.30 100636 03 918.90
Ammonia
NH 3 20 ppm 0 – 100 ppm 0,59 / ceiling 37401 GMF 2.E.NH3.07 100594 03 1,375.10
NH 3 20 ppm 0 – 300 ppm 0,59 / ceiling 37401 GMF 2.E.NH3.08 100595 03 1,375.10
NH 3 20 ppm 0 – 1.000 ppm 0,59 / ceiling 37401 GMF 2.E.NH3.10 100596 03 1,375.10
NH 3 20 ppm 0 – 1.500 ppm 0,59 / ceiling 37301 GMF 2.H.NH3.11 100622 03 746.60
NH 3 20 ppm 0 – 30.000 ppm0,59 / ceiling 37201 GMF 2.P.NH3.14 100647 03 912.90

Benzine
HC 0 – 100 % UEG 3,2 / floor 37301 GMF 2.H.HC.30 100620 03 486.80
HC 0 – 100 % UEG 3,2 / floor 37201 GMF 2.P.HC.30 100645 03 912.90

Butane
C 4 H 10 1,000 ppm 0 – 100 % UEG 2,05 / floor 37301 GMF 2.H.C4H10.30 100614 03 407.00
C 4 H 10 1,000 ppm 0 – 100 % UEG 2,05 / floor 37201 GMF 2.P.C4H10.30 100641 03 912.90

Chlorine
CL 2 0,5 ppm 0 – 5 ppm 2,45 / floor 37401 GMF 2.E.CL2.01 100584 03 1,144.10
Hydrogen chloride
HCL 5 ppm 0 – 20 ppm 1,26 / floor 37401 GMF 2.E.HCL.03 100590 03 1,375.10

Hydrocyanic acid
HCN 10 ppm 0 – 30 ppm 0,93 / 1,5 – 1,8 m 37401 GMF 2.E.HCN.04 100591 03 1,353.10

Ethane
C 2 H 6 0 – 100 % UEG 1,04 / 1,5 – 1,8 m 37301 GMF 2.H.C2H6.30 100610 03 419.60
C 2 H 6 0 – 100 % UEG 1,04 / 1,5 – 1,8 m 37201 GMF 2.P.C2H6.30 102689 03 550.20
Ethyl alcohol
C 2 H 5 OH 1,000 ppm 0 – 100 % UEG 1,59 / floor 37301 GMF 2.H.C2H5OH.30 100609 03 912.90
C 2 H 5 OH 1,000 ppm 0 – 100 % UEG 1,59 / floor 37201 GMF 2.P.C2H5OH.30 102659 03 861.80

Ethylene
C 2 H 4 0 – 100 % UEG 0,97 / ceiling 37301 GMF 2.H.C2H4.30 100611 03 861.80
C 2 H 4 0 – 100 % UEG 0,97 / ceiling 37201 GMF 2.P.C2H4.30 100639 03 912.90
Freon
R 23 500 ppm 0 – 2.000 ppm > 2,0 / floor 37301 GMF 2.H.R23.12 100625 03 1,502.10
R 32 500 ppm 0 - 2.000 ppm > 2,0 / floor 37301 GMF 2.H.R32.12 104955 03 1,039.90
R 123 500 ppm 0 – 2.000 ppm > 2,0 / floor 38109 GMF 4.IR.R123.12.MOD 103531 03 1,850.50
R 123 500 ppm 0 – 2.000 ppm > 2,0 / floor 38111 GMF 4.IR.R123.12.HP-MOD 104145 03 2,053.10
R 123 500 ppm 0 – 2.000 ppm > 2,0 / floor 38110 GMF 5.IR.R123.12.MOD 103541 03 1,837.50
R 125 500 ppm 0 - 2.000 ppm > 2,0 / floor 38109 GMF 4.IR.R125.12.MOD 103532 03 1,850.50
R 125 500 ppm 0 – 2.000 ppm > 2,0 / floor 38111 GMF 4.IR.R125.12.HP-MOD 104146 03 2,053.10
R 125 500 ppm 0 – 2.000 ppm > 2,0 / floor 38110 GMF 5.IR.R125.12.MOD 103542 03 1,837.50
R 134a 500 ppm 0 – 2.000 ppm > 2,0 / floor 37301 GMF 2.H.R134a.12 100623 03 1,039.90
R 134a 500 ppm 0 – 2.000 ppm > 2,0 / floor 38106 GMF 5.H.R134a.12.MOD 100779 03 475.70

* The occupational limit values serve as non-binding guidelines. Please observe the applicable local regulations.

116 | Catalog 2025 | Gas warning devices To our online catalog: www.oprg.de/en/support/download-center