Gas Detection (Australia) Pty Ltd Page 7 of 44
M-GDA-3000 Rev 1
3.
Specification
ITEMS
SPECIFICATION
Measuring Type
Diffusion
Measuring Value Display
Local digital LCD(OLED) display
Means Value Display
Back light, 2-line/16-characters LCD & OLED
Approval
Ex d IIC T6, IP65
Detectible Gas
Combustible Gas
Carbon Dioxide(CO
2
)
Carbon monoxide(CO)
Measuring Method
Non-Dispersive Infrared (NDIR Cell)
Measuring Range
Combustible Gas : 0~10,000ppm / 0~100%, LEL /
0~100% VOL
CO2 : 1.0% ~ 100% VOL
CO : 5% ~ 100% VOL,
Response Time
90% of full scale in less than 10 seconds
Accuracy
±3% / Full scale
Zero Drift
Less than 2% full scale
Operating Temperature
-20 to 60°C
Operating Humidity
0 to 99% RH (Non-condensing)
Analogue Signal Output
Measurement output : 4-20mA DC/Full Scale
Diagnostic output : 3mA
Calibration output : 3mA
Faulty output : 2mA
HART ®Interface
HART REV7 / Optional Board (
*1
)
Alarm Signal Output
SPST Signal of Relay contact : 250V/1A
Calibration Work
Magnetic interface to configure alarm
Cable Connection Length
Max. 500m : 4~20mA signal
Max. 1000m : Isolated RS-485 Signal
Power Supply
18-31V DC (DC 24V normal) / Max. 400mA
Conduit Connection
1/2" or 3/4"PF, NPT(Standard : 3/4" PF)
Signal cable Connection
Power current : CVVS or CVVSB
2.0sq↑x 3wires shield
RS-485 communication : 1 par(UL2919 RS-485)
Option
HART ® Interface board
GTL-100 (explosion proof LED)
Rain cover
Dimensions
156(W) x 322(H) x 110(D) mm
Weight
Approx. 3.0kg
[Table 1. GDA3000 Specification ]
*Note 1) Regarding HART, refer to document on GDA 3000 HART
®
Field Device Specification.
