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Fixed Gas Detection

GD-84

Available 2022 - 4 Gas Pumped Intelligent Fixed Gas Monitor for Toxic, Combustible Gases and Oxygen

Riken Keiki GD-84 State of the Art multi gas sample drawing fixed gas detector unit 

GD-84_image

The Riken Keiki GD-84 represents a major advance in fixed gas detection. It features the ability to sample 4 seperate gases from 4 sources all in one compact wall mounted unit. The advanced new F sensor technology means a wide range of Toxic and combustible gases ( including hydrogen ) as well as Oxygen is available. The GD-84 is ideal in fixed systems when multiple gases require detection and space is at a premium. 

Specification

Model

GD-84D-EX

GD-84D-EX-EC

GD-84D-EX-EA

GD-84D-EX-EA-EC

GD-84D-EX-ET

GD-84D-EX-ET-EC

Detection principle

Electrochemical

Semiconductor

New ceramic

Hot-wire semiconductor

Electrochemical

Electrochemical

Semiconductor

New ceramic

Hot-wire semiconductor

Electrochemical

Electrochemical

Semiconductor

New ceramic

Hot-wire semiconductor

Electrochemical

Gas

Toxic gas

Combustible gas

Toxic gas

Toxic gas

Combustible gas

Toxic gas

Toxic gas

Combustible gas

Toxic gas

Display

Full dot display (gas name, flow rate, mode, communication status, gas concentration, and bar meter)

Detection method

Pump suction method

Suction flow

Approx.0.6 L/min

Power indication

POWER lamp on(green)

Alarm accuracy

(under an identical condition)

Less than ±30%(against alarm preset point)

Alarm-delay time

(under an identical condition)

Less than 60sec (by providing the gas 1.6 times the alarm setpoint) (excluding delay in the tube and in the communication)

Gas alarm type

Two-level alarm(H-HH or H-L or L-LL)

Gas alarm indication

1st:ALM1 lamp on(red) 2nd:ALM2 lamp on(red)

Gas alarm action

Non latching (auto-reset) or latching

Gas alarm contact

No-voltage contact 1a or 1b (2 step independent)

De-energized (energized at an alarm state) or energized (de-energized at an alarm state)

Trouble alarm・Self diagnosis

System abnormalities/sensor abnormalities/flow rate/abnormalities/communication abnormalities/FAN disconnection abnormalities/temperature rise abnormalities/ /sensor life diagnosis

Trouble alarm indication

FAULT lamp on(yellow)/detail display

Trouble alarm action

Non latching (auto-reset) or latching

Trouble alarm contact

No-voltage contact 1a or 1b

De-energized (energized at an alarm) or energized (de-energized at an alarm)

Contact capacity

24 VDC, 0.5 A (resistance load)

Contact cable

Cable of CVV, etc. (1.25 mm2) - max. 6-core

Output

 Analog transmission: 2-wire type analog transmission

(DC4-20mA)

 Digital transmission: Ethernet(10BASE-T/100BASE-TX)
 Analog transmission: 2-wire type analog transmission

(DC4-20mA)

Digital transmission: Ethernet(10BASE-T/100BASE-TX)

Output cable

 Cable of CVV, etc. (1.25 mm2) - max. 8-core

 Digital transmission: Ethernet cable

                                (category 5 or higher)
 Cable of CVV, etc. (1.25 mm2) - max. 8-core

 Digital transmission: Ethernet cable

                                     (category 5 or higher)

Various functions

White backlight/alarm delay/suppress/zero tracking/sensitivity compensation/flow control/calibration history/alarm trend history/event history

Power cable

 Cable of CVV, etc. (1.25mm2) - 2-core

 Cable of CVV, etc. (1.25mm2) - 2-core
 (common with the digital transmission cable when PoE connection is used)

 (common with the digital transmission cable when PoE connection is used)

Power supply

DC24 V±10 %

DC24 V±10 % or PoE connection

PoE connection

Power consumption

DC24 V:

Approx.8 W(MAX approx.14 W)

DC24 V:

Approx.2.5 W(Max Approx.7 W)

DC24 V:Approx.9 W(Max Approx. 15 W)
PoE:Approx.11 W(Max approx.16 W)

DC24 V:Approx.3 W(Max approx. 8 W)
PoE:Approx.4.5 W(Max approx.9.5 W)

PoE:

Approx.9 W(Max approx.11 W)

PoE:

Approx.3.5 W(Max approx.4.5 W)

Piping port

Rc1/4(O.Dφ6-1t・with half-union for the tubing)

Initial clear

Approx.25sec

Operating temperature

-10 - 40℃(at a constant condition)

Operating humidity

20 - 90 %RH(non-condensing)

Structure

Wall mounted type

Outer dimension

Approx.150(W)×190(H)×146(D) mm(projection portions excluded)

Approx.150(W)×183(H)×140(D) mm(projection portions excluded)

Weight

Approx.1.9 kg

Approx. 1.4 kg

Color

Body:gray Front door:white

 

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