RKI Instruments GD-70D Series - Specifications for Each Model; Specifications for Each Sensor Type

GD-70D - 120 -
GD-70D-EA
GD-70D-LN
Transmission
System
Digital transmission: Ethernet
(10BASE-T/100BASE-TX)
Analog transmission:
3-wire type analog transmission
(Common cable for power and signal
<Power, Signal, Common>)
or 2-wire type analog transmission
LONWORKS (LN)
Transmission
Specification
Digital transmission: Ethernet
Analog transmission: 4 - 20 mA DC (no-
insulation/load resistance under 300 Ω)
LONWORKS
Recommended
Transmission
Cable
Digital transmission: Ethernet cable
(category 5 or higher)
Analog transmission: Shielded cable of
CVVS, etc. (1.25 mm
2
) - 3-core or 2-
core
Shielded twisted pair cable of
KPEV-S, etc. (1.25 mm
2
) ・1P
Recommended
Power Cable
Cable of CVV, etc. (1.25mm
2
) - 2-core
(common with the digital transmission
cable when PoE connection is
used/common with the analog
transmission cable when 3-wire analog
connection is used)
Cable of CVV, etc. (1.25 mm
2
) - 2-
core
Input Power
24 VDC
±
10% or PoE connection 24 VDC
±
10%
12-3 Specifications for Each Sensor Type
ESU
ESU + PLU *1
SSU + PLU *1
Detection
principle
Electrochemical type Pyrolysis-particle type
Gas to be
detected
Toxic gas *2 NF3/COS Toxic gas *2
Detection range
See Full Scale and Alarm
Points on page 123
See Full Scale and Alarm
Points on page 123
See Full Scale and Alarm
Points on page 123
Detection method
Pump suction type
Pump suction type/pyrolysis type
Alarm setpoint
value
See Full Scale and Alarm
Points on page 123
See Full Scale and Alarm
Points on page 123
See Full Scale and Alarm
Points on page 123
Alarm accuracy
Within ±30% *3
Alarm delay time
60 seconds or less *4
Alarm type
Two-step alarm
(H-HH)
Power
consumption
Approx. 1.5 W (Max. 4 W)
Power
consumption (EA)
24 V: Approx. 3W (Max. approx. 5W)
PoE: Approx. 4.5W (Max. approx. 7W)
Power
consumption(DV)
Approx. 2 W (Max. 4.5 W)
Operating
temperature
(at a constant
condition)
0 - 40ºC
Operating
humidities
(Non-condensing)
30 - 70%RH 30 - 80%RH