RKI Instruments GD-70D Series - Page 122

GD-70D - 122 -
IRU
SHU
Detection
principle
NDIR
(Non-Dispersive Infrared
Absorption)
Hot-wire Semiconductor
Gas to be
detected
N2O H2
Detection range
See Full Scale and Alarm Points
on page 123
See Full Scale and Alarm
Points on page 123
Detection method
Pump suction type
Alarm setpoint
value
See Full Scale and Alarm Points
on page 123
See Full Scale and Alarm
Points on page 123
Alarm accuracy *1
Within ±30%
Within ±25%
Alarm delay time
*2
30 seconds or less 30 seconds or less
Alarm type
Two-step alarm
(H-HH)
Two-step alarm
(H-HH)
Power
consumption
Approx. 3 W (Max. 5 W) Approx. 3 W (Max. 5 W)
Power
consumption (EA)
24 V: Approx. 4.5W
(Max. approx. 6.5W)
PoE: Approx. 5.5W
(Max. approx. 8W)
24 V: Approx. 4.5W
(Max. approx. 6.5W)
PoE: Approx. 5.5W
(Max. approx. 8.5W)
Power
consumption(DV)
Approx. 3.5 W (Max. 5.5 W) Approx. 3.5 W (Max. 5.5 W)
Operating
temperature
(at a constant
condition)
0 - 40ºC
Operating
humidities
(Non-condensing)
95%RH or less
*1
To the alarm setpoint value
*2
By providing the gas 1.6 times the alarm setpoint (excluding
delay in the tube and in the communication)