RSE-0931-0
GAS DETECTOR HEAD
GD-84D-EX SPECIFICATION
ModelDetection principle*
Detectable gas*
Indication

Measuring range*
Detection method
Suction flow
Alarm setpoints*
Power indication
Indication accuracy*
Response time*
Alarm accuracy*
Alarm delay time*
Gas alarm type*Gas alarm indications
Gas alarm pattern*
Gas alarm contact*

Fault alarm/ self-diagnosis

Fault alarm indications
Fault alarm pattern*
Fault alarm contacts*

Contact capacity
Contact cable
Transmission method

Transmission cable
FunctionsPower cable
Power source
Power consumption
Pipe connection openings
Initialization
Operating temperature range
Operating humidity range
Construction
External dimensions
WeightExterior color

GD-84D-EX
Electrochemical type, new ceramic type, semiconductor type, hot-wiresemiconductor type
Toxic gases, combustible gases, oxygen
Full-dot display （ Gas name display, flow display, mode display,communication status display, concentration display, concentration bardisplay）
Refer to individual sensor specifications
Pump suction method
Approx. 0.6 L/min
Refer to individual sensor specifications
POWER LED lights up (green)
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Two-stage alarm (L-LL, L-H, or H-HH)
First alarm: ALM1 LED lights up (red)Second alarm: ALM2 LED lights up (red)Auto-reset or self-latching
No-voltage contact 1a or 1b
Always de-energized (energized in alarm state) or always energized(de-energized in alarm state)
System abnormality, sensor abnormality, flow abnormality,
fan disconnection abnormality, temperature increase abnormality,
sensor life diagnosis
FAULT LED lights up (yellow)/information displayed.
Auto-reset or self-latching
Overall fault contacts: no-voltage contact 1a or 1b
Always de-energized (energized in alarm state) or always energized(de-energized in alarm state)
24 V DC/0.5 A (resistance load)
CVV or equivalent cable (1.25 mm2, maximum 18 core)
Analog transmission: two-wire analog transmission(4 - 20 mA DC, non-insulated, resistance load 300 Ω or less, including
cable resistance)
Analog transmission: CVVS or equivalent shielded cable(1.25 mm2, maximum eight cores)
White backlight, alarm delay, suppression, zero follower, sensitivity
correction, flow control,calibration history, alarm trend history, event history
CVV or equivalent cable (1.25 mm2), two-core
24 V DC ± 10 %When 24 V DC is connected: approx. 8 W (maximum approx. 14 W)
Rc1/4 (OD φ6-1 t half union for Teflon pipe <PP> supplied）
Approx. 25 seconds-10 – +40 ℃ (no sudden changes)
20 – 90 % RH (No condensation; may depend on the sensors installed.)
Wall mounting type
Approx. 150 (W) × 190 (H) × 146 (D) mm (excluding projections)
Approx. 1.9 kg
Main unit: Black Front door: White＊ Please specify your request when ordering.

RSE-0931-0
Outline Drawings

M4 mounting
holeOperatingswitches

Display

M4 mounting
holeTerminal Drawings

12345678910＋－＋－＋－＋－＋－A14-20mA

DC24V

1112A1ALM11314A1
ALM2

A24-20mA

1516A2
ALM117B14-20mA

18A2
ALM2

19B2
4-20mA20

B1
ALM12122B1
ALM2

23

24B2
ALM1

2526

B2
ALM22728

FAULT

RSE-0932-0
GAS DETECTOR HEAD
GD-84D-EX-EC SPECIFICATION
ModelDetection principle
Detectable gas*
Indication

Measuring range*
Detection method
Suction flow
Alarm setpoints*
Power indication
Indication accuracy*
Response time*
Alarm accuracy*
Alarm delay time*
Gas alarm type*Gas alarm indications
Gas alarm pattern*
Gas alarm contact*

Fault alarm/ self-diagnosis
Fault alarm indications
Fault alarm pattern*
Fault alarm contacts*

Contact capacity
Contact cable
Transmission method

Transmission cable
FunctionsPower cable
Power source
Power consumption
Pipe connection openings
Initialization
Operating temperature range
Operating humidity range
Construction
External dimensionsWeight
Exterior color

GD-84D-EX-EC
Electrochemical type
Toxic gases, oxygen
Full-dot display （ Gas name display, flow display, mode display,communication status display, concentration display, concentration bardisplay）
Refer to individual sensor specifications
Pump suction method
Approx. 0.6 L/min
Refer to individual sensor specifications
POWER LED lights up (green)
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Two-stage alarm (L-LL, L-H, or H-HH)
First alarm: ALM1 LED lights up (red).
Second alarm: ALM2 LED lights up (red).
Auto-reset or self-latching
No-voltage contact 1a or 1b
Always de-energized (energized in alarm state) or always energized(de-energized in alarm state)
System abnormality, sensor abnormality, flow abnormality, temperature
increase abnormality, sensor life diagnosis
FAULT LED lights up (yellow)/information displayed.
Auto-reset or self-latching
Overall fault contacts: no-voltage contact 1a or 1b
Always de-energized (energized in alarm state) or always energized(de-energized in alarm state)
24 V DC/0.5 A (resistance load)
CVV or equivalent cable (1.25 mm2, maximum 18 core)
Analog transmission: two-wire analog transmission(4 - 20 mA DC, non-insulated, resistance load 300 Ω or less,including cable resistance)
Analog transmission: CVVS or equivalent shielded cable(1.25 mm2, maximum eight cores)
White backlight, alarm delay, suppression, zero follower, sensitivity
correction, flow control,calibration history, alarm trend history, event history
CVV or equivalent cable (1.25 mm2), two-core
24 V DC ± 10 %When 24 V DC is connected: approx. 2.5 W(maximum approx.7 W)
Rc1/4 (OD φ6-1 t half union for Teflon pipe <PP> supplied）
Approx. 25 seconds-10 – +40 ℃ (no sudden changes)
20 – 90 % RH (No condensation; may depend on the sensors installed.)
Wall mounting type
Approx. 150 (W) × 190 (H) × 146 (D) mm (excluding projections)
Approx. 1.9 kg
Main unit: Black Front door: White＊ Please specify your request when ordering.

RSE-0932-0
Outline Drawings

M4 mounting
holeOperatingswitches

Display

M4 mounting
holeTerminal Drawings

12345678910＋－＋－＋－＋－＋－A14-20mA

DC24V

1112A1
ALM11314

A1
ALM2

A24-20mA

1516A2
ALM117B14-20mA

18A2
ALM2

19B24-20mA20

B1
ALM12122

B1
ALM2

2324

B2
ALM12526

B2
ALM22728

FAULT

RSE-0933-0
GAS DETECTOR HEAD
GD-84D-EX-EA SPECIFICATION
Model
Detection principle*
Detectable gas*
Indication

Measuring range*
Detection methodSuction flow
Alarm setpoints*
Power indication
Indication accuracy*
Response time*
Alarm accuracy*Alarm delay time*
Gas alarm type*Gas alarm indications
Gas alarm pattern*
Gas alarm contact*

Fault alarm/ self-diagnosis

Fault alarm indications
Fault alarm pattern*
Fault alarm contacts*

Contact capacity
Contact cable
Transmission method

Transmission cable

FunctionsPower cable
Power source
Power consumption
Pipe connection openings
Initialization
Operating temperature range
Operating humidity range
Construction
External dimensions
Weight

GD-84D-EX-EA
Electrochemical type, new ceramic type, semiconductor type, hot-wiresemiconductor type
Toxic gases, combustible gases, oxygen
Full-dot display （ Gas name display, flow display, mode display,communication status display, concentration display, concentration bardisplay）
Refer to individual sensor specifications
Pump suction method
Approx. 0.6 L/min
Refer to individual sensor specifications
POWER LED lights up (green)
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Two-stage alarm (L-LL, L-H, or H-HH)
First alarm: ALM1 LED lights up (red).
Second alarm: ALM2 LED lights up (red).
Auto-reset or self-latching
No-voltage contact 1a or 1b
Always de-energized (energized in alarm state) or always energized(de-energized in alarm state)
System abnormality, sensor abnormality, flow abnormality, communication
abnormality, fan disconnection abnormality, temperature increaseabnormality, sensor life diagnosis
FAULT LED lights up (yellow)/information displayed.
Auto-reset or self-latching
Overall fault contacts: no-voltage contact 1a or 1b
Always de-energized (energized in alarm state) or always energized(de-energized in alarm state)
24 V DC/0.5 A (resistance load)
CVV or equivalent cable (1.25 mm2, maximum 18 core)
Digital transmission: Ethernet (10BASE-T/100BASE-TX)
Analog transmission: two-wire analog transmission(4 - 20 mA DC, non-insulated, resistance load 300 Ω or less, including
cable resistance)
Digital transmission: CAT5e or better Ethernet cable
Analog transmission: CVVS or equivalent shielded cable(1.25 mm2, maximum eight cores)
White backlight, alarm delay, suppression, zero follower, sensitivity
correction, flow control,calibration history, alarm trend history, event history
CVV or equivalent cable (1.25 mm2), two-core(Shared with digital transmission cable when PoE+ connection is used)
24 V DC ± 10 % or PoE+ connection
When 24 V DC is connected: approx. 9 W (maximum approx. 15 W)
When PoE+ is connected: approx. 11 W (maximum approx. 16 W)
Rc1/4 (OD φ6-1 t half union for Teflon pipe <PP> supplied）
Approx. 25 seconds-10 – +40 ℃ (no sudden changes)
20 – 90 % RH (No condensation; may depend on the sensors installed.)
Wall mounting type
Approx. 150 (W) × 190 (H) × 146 (D) mm (excluding projections)
Approx. 1.9 kg

RSE-0933-0
Exterior color

Main unit: Black

Front door: White＊ Please specify your request when ordering.

Outline Drawings

M4 mounting
holeOperatingswitches

Display

M4 mountinghole* RJ-45 connector for Ethernet cable connection is on the bottom of the main unit.

Terminal Drawings

12345678910＋－＋－＋－＋－＋－A14-20mA

DC24V *

1112A1ALM11314A1
ALM2

A24-20mA

1516A2
ALM117B14-20mA

18A2
ALM2

19B24-20mA

20B1
ALM1

2122B1
ALM22324

B2
ALM12526

B2
ALM22728

FAULT* For PoE connection, the terminals 1 and 2 are disabled. (Connection prohibited. Supply from the RJ-45connector.)

RSE-0934-0
GAS DETECTOR HEAD
GD-84D-EX-EA-EC SPECIFICATION
ModelDetection principle
Detectable gas*
Indication

Measuring range*
Detection methodSuction flow
Alarm setpoints*
Power indication
Indication accuracy*
Response time*
Alarm accuracy*
Alarm delay time*
Gas alarm type*Gas alarm indications
Gas alarm pattern*
Gas alarm contact*

Fault alarm/ self-diagnosis
Fault alarm indications
Fault alarm pattern*
Fault alarm contacts*

Contact capacity
Contact cable
Transmission method

Transmission cable

FunctionsPower cable
Power source
Power consumption
Pipe connection openings
Initialization
Operating temperature range
Operating humidity range
Construction
External dimensions
WeightExterior color

GD-84D-EX-EA-EC
Electrochemical type
Toxic gases, oxygen
Full-dot display （ Gas name display, flow display, mode display,communication status display, concentration display, concentration bardisplay）
Refer to individual sensor specifications
Pump suction method
Approx. 0.6 L/min
Refer to individual sensor specifications
POWER LED lights up (green)
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Two-stage alarm (L-LL, L-H, or H-HH)
First alarm: ALM1 LED lights up (red).
Second alarm: ALM2 LED lights up (red).
Auto-reset or self-latching
No-voltage contact 1a or 1b
Always de-energized (energized in alarm state) or always energized(de-energized in alarm state)
System abnormality, sensor abnormality, flow abnormality, communication
abnormality, temperature increase abnormality, sensor life diagnosis
FAULT LED lights up (yellow)/information displayed.
Auto-reset or self-latching
Overall fault contacts: no-voltage contact 1a or 1b
Always de-energized (energized in alarm state) or always energized(de-energized in alarm state)
24 V DC/0.5 A (resistance load)
CVV or equivalent cable (1.25 mm2, maximum 18 core)
Digital transmission: Ethernet (10BASE-T/100BASE-TX)
Analog transmission: two-wire analog transmission(4 - 20 mA DC, non-insulated, resistance load 300 Ω or less, including
cable resistance)
Digital transmission: CAT5e or better Ethernet cable
Analog transmission: CVVS or equivalent shielded cable(1.25 mm2, maximum eight cores)
White backlight, alarm delay, suppression, zero follower, sensitivity
correction, flow control,calibration history, alarm trend history, event history
CVV or equivalent cable (1.25 mm2), two-core(Shared with digital transmission cable when PoE+ connection is used)
24 V DC ± 10 % or PoE+ connection
When 24 V DC is connected: approx.3 W(maximum approx.8 W)
When PoE+ is connected: approx.4.5 W(maximum approx.9.5 W)
Rc1/4 (OD φ6-1 t half union for Teflon pipe <PP> supplied）
Approx. 25 seconds-10 – +40 ℃ (no sudden changes)
20 – 90 % RH (No condensation; may depend on the sensors installed.)
Wall mounting type
Approx. 150 (W) × 190 (H) × 146 (D) mm (excluding projections)
Approx. 1.9 kg
Main unit: Black Front door: White＊ Please specify your request when ordering.

RSE-0934-0
Outline Drawings

M4 mounting
holeOperatingswitches

Display

M4 mounting
hole* RJ-45 connector for Ethernet cable connection is on the bottom of the main unit.

Terminal Drawings

12345678910＋－＋－＋－＋－＋－A14-20mA

DC24V *1112A1
ALM11314A1
ALM2A24-20mA

1516A2
ALM117B14-20mA

18

A2
ALM2

19B24-20mA20

B1
ALM12122B1
ALM22324

B2
ALM12526

B2
ALM22728

FAULT* For PoE connection, the terminals 1 and 2 are disabled. (Connection prohibited. Supply from the RJ-45
connector.)

RSE-0935-0
GAS DETECTOR HEAD
GD-84D-EX-ET SPECIFICATION
ModelDetection principle*

Power cable

GD-84D-EX-ET
Electrochemical type, new ceramic type, semiconductor type, hotwire semiconductor type
Toxic gases, combustible gases, oxygen
Full-dot display（Gas name display, flow display, mode display,communication status display, concentration display, concentration
bar display）
Refer to individual sensor specifications
Pump suction method
Approx. 0.6 L/min
Refer to individual sensor specifications
POWER LED lights up (green)
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Two-stage alarm (L-LL, L-H, or H-HH)
First alarm: ALM1 LED lights up (red).
Second alarm: ALM2 LED lights up (red).
Auto-reset or self-latching
System abnormality, sensor abnormality, flow abnormality,communication abnormality, fan disconnection abnormality,
temperature increase abnormality, sensor life diagnosis
FAULT LED lights up (yellow)/information displayed.
Auto-reset or self-latching
Digital transmission: Ethernet (10BASE-T/100BASE-TX)
Digital transmission: CAT5e or better Ethernet cableWhite backlight, alarm delay, suppression, zero follower,sensitivity correction, flow control,calibration history, alarm trend history, event history
Shared with digital transmission cable

Power source

PoE+ connection

Power consumption

When PoE+ is connected: approx. 9 W (maximum approx. 11 W)

Pipe connection openings

Rc1/4 (OD φ6-1 t half union for Teflon pipe <PP> supplied）

Initialization

Approx. 25 seconds

Operating temperature range-10 – +40 ℃ (no sudden changes)

Operating humidity range

20 – 90 % RH (No condensation; may depend on the sensors
installed.)

Construction

Wall mounting type

External dimensions

Approx. 150 (W) × 183 (H) × 140 (D) mm (excluding projections)

WeightApprox. 1.4 kg

Exterior color

Main unit: Black

Detectable gas*
Indication

Measuring range*
Detection method
Suction flow
Alarm setpoints*
Power indication
Indication accuracy*
Response time*
Alarm accuracy*
Alarm delay time*
Gas alarm type*Gas alarm indications
Gas alarm pattern*
Fault alarm/ self-diagnosis

Fault alarm indications
Fault alarm pattern*
Transmission method
Transmission cableFunctions＊ Please specify your request when ordering.

Front door: WhiteRSE-0935-0
Outline Drawings
M4 mounting
hole*

DisplayM4 screw suppliedwith main unit

* RJ-45 connector for Ethernet cable connection is on the bottom of the main unit.

Operatingswitches

RSE-0936-0
GAS DETECTOR HEAD
GD-84D-EX-ET-EC SPECIFICATION
ModelDetection principle*
Detectable gas*Indication

Power cable

GD-84D-EX-ET-EC
Electrochemical typeToxic gases, oxygen
Full-dot display （ Gas name display, flow display, mode display,communication status display, concentration display, concentration bardisplay）
Refer to individual sensor specifications
Pump suction methodApprox. 0.6 L/min
Refer to individual sensor specifications
POWER LED lights up (green)
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Refer to individual sensor specifications
Two-stage alarm (L-LL, L-H, or H-HH)
First alarm: ALM1 LED lights up (red).
Second alarm: ALM2 LED lights up (red).
Auto-reset or self-latching
System abnormality, sensor abnormality, flow abnormality, communication
abnormality, temperature increase abnormality, sensor life diagnosis
FAULT LED lights up (yellow)/information displayed.
Auto-reset or self-latching
Digital transmission: Ethernet (10BASE-T/100BASE-TX)
Digital transmission: CATｘ5e or better Ethernet cableWhite backlight, alarm delay, suppression, zero follower, sensitivity
correction, flow control,calibration history, alarm trend history, event history
Shared with digital transmission cable

Power source
Power consumption
Pipe connection openings

PoE+ connection
When PoE+ is connected: approx. 3.5 W(maximum approx.4.5 W)
Rc1/4 (OD φ6-1 t half union for Teflon pipe <PP> supplied）

Initialization

Approx. 25 seconds

Operating temperature range-10 – +40 ℃ (no sudden changes)

Operating humidity range

20 – 90 % RH (No condensation; may depend on the sensors installed.)

Construction

Wall mounting type

External dimensions

Approx. 150 (W) × 183 (H) × 140 (D) mm (excluding projections)

WeightApprox. 1.4 kg

Exterior color

Main unit: BlackMeasuring range*
Detection method
Suction flow
Alarm setpoints*
Power indication
Indication accuracy*
Response time*
Alarm accuracy*
Alarm delay time*
Gas alarm type*Gas alarm indications
Gas alarm pattern*
Fault alarm/ self-diagnosis
Fault alarm indications
Fault alarm pattern*
Transmission method
Transmission cableFunctions＊ Please specify your request when ordering.

Front door: WhiteRSE-0936-0
Outline Drawings
M4 mounting
hole*Display

M4 screw suppliedwith main unit

* RJ-45 connector for Ethernet cable connection is on the bottom of the main unit.

Operatingswitches