11. Product Specifications
11-1 GD-84D-EX Specifications
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11-1-4 GD-84D-EX-ET
Detection principle
Electrochemical type, new ceramic type, semiconductor type, hot-wire semiconductor type
Detection target gas
Toxic gases, combustible gases, oxygen
Concentration display
Full-dot display
Detection range
Depends on detection target gas
Detection method
Pump suction type
Suction flow rate
Total flow rate: approx. 0.6 L/min
Alarm setpoints
Depends on detection target gas
Power supply
indication
POWER LED lights up (green)
Display items
Gas name display, flow display, mode display, communication status display
Alarm accuracy
(for identical
conditions)
Within ±30 % of alarm setpoint
(depending on detection target gas and detection principle)
Alarm delay time
(for identical
conditions)
Within 60 seconds after providing gas at 1.6 times the alarm setpoint
(depending on detection target gas and detection principle)
(not including piping and communication delays)
Gas alarm type
Two-stage alarm (L-LL, L-H, or H-HH)
Gas alarm indications
First alarm: ALM1 LED lights up (red).
Second alarm: ALM2 LED lights up (red).
Gas alarm pattern
Auto-reset or self-latching
Gas alarm contact
-
Fault alarm/self-
diagnosis
System abnormality, sensor abnormality, flow abnormality, communication abnormality, fan
disconnection abnormality, temperature increase abnormality
Fault alarm indications
FAULT LED lights up (yellow)/information displayed.
Fault alarm pattern
Auto-reset or self-latching
Fault alarm contacts
-
Contact capacity
-
Contact cable
-
Transmission method
Digital transmission: Ethernet (10BASE-T/100BASE-TX)
Transmission cable
Digital transmission: Cat5e or better Ethernet cable
Functions
White backlight, alarm delay, suppression, zero follower, sensitivity correction, flow control,
calibration history, alarm trend history, event history
Power cable
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
φ
6-1 t half union for Teflon pipe <PP> supplied
)
Initialization
Approx. 25 seconds
Operating temperature
range
-10 – 40 °C (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 mm (D) (excluding projections)
Weight
Approximately 1.4 kg
Exterior color
Main unit: Black Front door: White
Содержание GD-84D-EX Series
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