RSE-0619-4
GAS DETECTOR UNIT
GD-A80(ATEX・IECEx) SPECIFICATION
ModelPrinciple of detection
Detection gas
Detection method
Transmission cable
Cabling connecting port*1

GD-A80Catalytic combustion method / New ceramic method
Combustible gas in the air
Diffusion type
CVV 1.25mm2 or 2mm2 - 4-core
Pressure proof packing gland <G3/4> (Compatible cables φ9.5 13.0mm in outer diameter)
Operating temperature range*2 -20 - +53℃（at a constant condition）
Operating humidity range
Below 95%RH（Non-condensing）
Structure
Wall mount type, 2B(50A) pipe attachable
Explosion-proof structure
Flame-proof enclosures
Explosion-proof class
Ⅱ 2 G Ex db ⅡC T4 Gb(ATEX)/Ex db ⅡC T4 Gb(IECEx)
Outer dimension
Approx. 78(W)×163(H)×105(D)mm (Fixing brackets excluded)
WeightApprox. 1.0kg
Outer color
Munsell 7.5BG5/2
Name plate：red*1 Please specify your request when ordering.
*2 The ambient temperature range which maintain a capability of explosion proof of the label on
the detector is -40 - +53℃. However, the available operating temperature range is -20 - +53℃.

Outline Drawings

RSE-0620-4
GAS DETECTOR UNIT
GD-A80V(ATEX・IECEx) SPECIFICATION
ModelPrinciple of detection
Detection gas
Detection method
Transmission cable
Cabling connecting port*1
Operating temperature range*2
Operating humidity range
Structure
Explosion-proof structure
Explosion-proof class
Outer dimension
WeightOuter color

GD-A80V
Semiconductor method
Combustible gas / Toxic gas in the air
Diffusion type
CVVS 1.25mm2 or 2mm2 - 3-core
Pressure proof packing gland <G3/4> (Compatible cables φ9.5 13.0mm in outer diameter)-20 - +53℃（at a constant condition）
Below 95%RH（Non-condensing）
Wall mount type, 2B(50A) pipe attachable
Flame-proof enclosures
Ⅱ 2 G Ex db ⅡC T4 Gb(ATEX)/Ex db ⅡC T4 Gb(IECEx)
Approx. 78(W)×163(H)×105(D)mm (Fixing brackets excluded)
Approx. 1.0kg
Munsell 7.5BG5/2
Name plate：yellow*1 Please specify your request when ordering.
*2 The ambient temperature range which maintain a capability of explosion proof of the label on
the detector is -40 - +53℃. However, the available operating temperature range is -20 - +53℃.

Outline Drawings

RSE-0621-4
GAS DETECTOR UNIT
GD-A80S(ATEX・IECEx) SPECIFICATION
ModelPrinciple of detection
Detection gas
Detection method
Transmission cable
Cabling connecting port*1

GD-A80S
Hot wire semiconductor method
Combustible gas / Toxic gas in the air
Diffusion type
CVVS 1.25mm2 or 2mm2 - 4-core
Pressure proof packing gland <G3/4> (Compatible cables φ9.5 13.0mm in outer diameter)
Operating temperature range*2 -20 - +53℃（at a constant condition）
Operating humidity range
Below 95%RH（Non-condensing）
Structure
Wall mount type, 2B(50A) pipe attachable
Explosion-proof structure
Flame-proof enclosures
Explosion-proof class
Ⅱ 2 G Ex db ⅡC T4 Gb(ATEX)/Ex db ⅡC T4 Gb(IECEx)
Outer dimension
Approx. 78(W)×163(H)×105(D)mm (Fixing brackets excluded)
WeightApprox. 1.0kg
Outer color
Munsell 7.5BG5/2
Name plate：blue*1 Please specify your request when ordering.
*2 The ambient temperature range which maintain a capability of explosion proof of the label on
the detector is -40 - +53℃. However, the available operating temperature range is -20 - +53℃.

Outline Drawings

RSE-0622-4
GAS DETECTOR UNIT
GD-A80N(ATEX・IECEx) SPECIFICATION
ModelPrinciple of detection
Detection gas
Detection method
Transmission cable
Cabling connecting port*1

GD-A80N
Thermal conductivity method
Combustible gases in the air/inert gas
Diffusion type
CVVS 1.25mm2 or 2mm2 - 4-core
Pressure proof packing gland <G3/4> (Compatible cables φ9.5 13.0mm in outer diameter)
Operating temperature range*2 -20 - +53℃（at a constant condition）
Operating humidity range
Below 95%RH（Non-condensing）
Structure
Wall mount type, 2B(50A) pipe attachable
Explosion-proof structure
Flame-proof enclosures
Explosion-proof class
Ⅱ 2 G Ex db ⅡC T4 Gb(ATEX)/Ex db ⅡC T4 Gb(IECEx)
Outer dimension
Approx. 78(W)×163(H)×105(D)mm (Fixing brackets excluded)
WeightApprox. 1.0kg
Outer color
Munsell 7.5BG5/2
Name plate：red*1 Please specify your request when ordering.
*2 The ambient temperature range which maintain a capability of explosion proof of the label on
the detector is -40 - +53℃. However, the available operating temperature range is -20 - +53℃.

Outline Drawings

RSE-0623-3
GAS DETECTOR UNIT
GD-A80-70(ATEX・IECEx) SPECIFICATION
ModelPrinciple of detection
Sensor
Detection gas
Detection method
Transmission cable
Cabling connecting port*1
Operating temperature range
Operating humidity range
Structure
Explosion-proof structure
Explosion-proof class
Outer dimension
WeightOuter color*1*2

GD-A80-70
Catalytic combustion method
HW-6212
HW-6239
Combustible gas(Methane excluded),
Methane, Isobutane, Hydrogen
Solvent vapor
Diffusion type
EM CCE/F 1.25mm2 or 2mm2 - 4-core
Pressure proof packing gland <G3/4> (Compatible cables φ9.5 - 13.0mm inouter diameter)-10 - +100℃(at a constant condition)*2 -40 - +70℃(at a constant condition)
Below 95%RH（Non-condensing）
Wall mount type, 2B(50A) pipe attachable
Flame-proof enclosures
Ⅱ 2 G Ex db ⅡC T4 Gb(ATEX)/Ex db ⅡC T4 Gb(IECEx)
Approx. 78(W)×163(H)×105(D)mm (Fixing brackets excluded)
Approx. 1.0kg
Munsell 7.5BG5/2
Name plate：red

Please specify your request when ordering.
The ambient temperature range which maintain a capability of explosion proof of the label on
the detector is -40 - +70℃. However, the available operating temperature range is -10 - +100℃.

Outline Drawings

RSE-0624-5
GAS DETECTOR UNIT
GD-A80D(ATEX・IECEx) SPECIFICATION
ModelPrinciple of detection
Detection gas
Detection method
Flow rate
Transmission cable
Cabling connecting port*1

GD-A80D
Catalytic combustion method / New ceramic method
Combustible gas in the airSuction type (introduced by an external pump unit)
0.8 – 2L/min
CVV 1.25mm2 or 2mm2 - 4-core
Pressure proof packing gland <G3/4> (Compatible cables φ9.5 13.0mm in outer diameter)
Tube connecting port*1
Rc1/8(O.Dφ6-1t)〈material: PP or Bs or SUS〉
*2
Operating temperature range-20 - +53℃（at a constant condition）
Operating humidity range
Below 95%RH（Non-condensing）
Structure
Wall mount type, 2B(50A) pipe attachable
Explosion-proof structure
Flame-proof enclosures
Explosion-proof class
Ⅱ 2 G Ex db ⅡC T4 Gb(ATEX)/Ex db ⅡC T4 Gb(IECEx)
Outer dimension
Approx. 78(W)×163(H)×123(D)mm (Fixing brackets excluded)
WeightApprox. 1.0kg
Outer color
Munsell 7.5BG5/2
Name plate：red*1 Please specify your request when ordering.
*2 The ambient temperature range which maintain a capability of explosion proof of the label on
the detector is -40 - +53℃. However, the available operating temperature range is -20 - +53℃.

Outline Drawings

RSE-0625-5
GAS DETECTOR UNIT
GD-A80DV(ATEX・IECEx) SPECIFICATION
ModelPrinciple of detection
Detection gas
Detection method
Flow rate
Transmission cable
Cabling connecting port*1

GD-A80DV
Semiconductor method
Combustible gas / Toxic gas in the airSuction type (introduced by an external pump unit)
0.8 – 2L/min
CVVS 1.25mm2 or 2mm2 - 3-core
Pressure proof packing gland <G3/4> (Compatible cables φ9.5 13.0mm in outer diameter)
Tube connecting port*1
Rc1/8(O.Dφ6-1t)〈material: PP or Bs or SUS〉
*2
Operating temperature range-20 - +53℃（at a constant condition）
Operating humidity range
Below 95%RH（Non-condensing）
Structure
Wall mount type, 2B(50A) pipe attachable
Explosion-proof structure
Flame-proof enclosures
Explosion-proof class
Ⅱ 2 G Ex db ⅡC T4 Gb(ATEX)/Ex db ⅡC T4 Gb(IECEx)
Outer dimension
Approx. 78(W)×163(H)×123(D)mm (Fixing brackets excluded)
WeightApprox. 1.0kg
Outer color
Munsell 7.5BG5/2
Name plate：yellow*1 Please specify your request when ordering.
*2 The ambient temperature range which maintain a capability of explosion proof of the label on
the detector is -40 - +53℃. However, the available operating temperature range is -20 - +53℃.

Outline Drawings

RSE-0626-5
GAS DETECTOR UNIT
GD-A80DS(ATEX・IECEx) SPECIFICATION
ModelPrinciple of detection
Detection gas
Detection method
Flow rate
Transmission cable
Cabling connecting port*1

GD-A80DS
Hot wire semiconductor method
Combustible gas / Toxic gas in the airSuction type (introduced by an external pump unit)
0.8 – 2L/min
CVVS 1.25mm2 or 2mm2 - 4-core
Pressure proof packing gland <G3/4> (Compatible cables φ9.5 13.0mm in outer diameter)
Tube connecting port*1
Rc1/8(O.Dφ6-1t)〈material: PP or Bs or SUS〉
*2
Operating temperature range-20 - +53℃（at a constant condition）
Operating humidity range
Below 95%RH（Non-condensing）
Structure
Wall mount type, 2B(50A) pipe attachable
Explosion-proof structure
Flame-proof enclosures
Explosion-proof class
Ⅱ 2 G Ex db ⅡC T4 Gb(ATEX)/Ex db ⅡC T4 Gb(IECEx)
Outer dimension
Approx. 78(W)×163(H)×123(D)mm (Fixing brackets excluded)
WeightApprox. 1.0kg
Outer color
Munsell 7.5BG5/2
Name plate：blue*1 Please specify your request when ordering.
*2 The ambient temperature range which maintain a capability of explosion proof of the label on
the detector is -40 - +53℃. However, the available operating temperature range is -20 - +53℃.

Outline Drawings

RSE-0627-5
GAS DETECTOR UNIT
GD-A80DN(ATEX・IECEx) SPECIFICATION
ModelPrinciple of detection
Detection gas
Detection method
Flow rate
Transmission cable
Cabling connecting port*1

GD-A80DN
Thermal conductivity method
Combustible gases in the air/inert gas
Suction type (introduced by an external pump unit)
0.8 - 2L/min
CVVS 1.25mm2 or 2mm2 - 4-core
Pressure proof packing gland <G3/4> (Compatible cables φ9.5 13.0mm in outer diameter)
Tube connecting port*1Rc1/8(O.Dφ6-1t)〈material: PP or Bs or SUS〉
*2
Operating temperature range-20 - +53℃（at a constant condition）
Operating humidity range
Below 95%RH（Non-condensing）
Structure
Wall mount type, 2B(50A) pipe attachable
Explosion-proof structure
Flame-proof enclosures
Explosion-proof class
Ⅱ 2 G Ex db ⅡC T4 Gb(ATEX)/Ex db ⅡC T4 Gb(IECEx)
Outer dimension
Approx. 78(W)×163(H)×123(D)mm (Fixing brackets excluded)
WeightApprox. 1.0kg
Outer color
Munsell 7.5BG5/2
Name plate：red*1 Please specify your request when ordering.
*2 The ambient temperature range which maintain a capability of explosion proof of the label on
the detector is -40 - +53℃. However, the available operating temperature range is -20 - +53℃.

Outline Drawings

RSE-0628-3
GAS DETECTOR UNIT
GD-A80D-70(ATEX・IECEx) SPECIFICATION
ModelPrinciple of detection
Sensor
Detection gas
Detection method
Flow rate
Transmission cable
Cabling connecting port*1

Tube connecting port*1
Operating temperature range
Operating humidity rangeStructure
Explosion-proof structure
Explosion-proof class
Outer dimensionWeightOuter color

GD-A80D-70
Catalytic combustion method
HW-6212
HW-6239
Combustible gas(Methane excluded),Methane, Isobutane, Hydrogen
Solvent vapor
Suction type (introduced by an external pump unit)
0.8 - 2L/min
EM CCE/F 1.25mm2 or 2mm2 - 4-core
Pressure proof packing gland <G3/4> (Compatible cables φ9.5 - 13.0mm inouter diameter)
Rc1/8(O.Dφ6-1t)〈material: PP or Bs or SUS〉
-10 - +100℃(at a constant condition)*2 -40 - +70℃(at a constant condition)
Below 95%RH（Non-condensing）
Wall mount type, 2B(50A) pipe attachable
Flame-proof enclosures
Ⅱ 2 G Ex db ⅡC T4 Gb(ATEX)/Ex db ⅡC T4 Gb(IECEx)
Approx. 78(W)×163(H)×123(D)mm (Fixing brackets excluded)
Approx. 1.0kg
Munsell 7.5BG5/2
Name plate：red*1 Please specify your request when ordering.
*2 The ambient temperature range which maintain a capability of explosion proof of the label on
the detector is -40 - +70℃. However, the available operating temperature range is -10 - +100℃.

Outline Drawings