10 Product Specifications
10-1. List
of specifications
- 58 -
<ATEX/IECEx
・
Leak alarm specifications>
Model SD-1DOX-AS
Type TYPE
H
Detection principle
Galvanic cell method
Detectable gas
O2
Applicable gas detector head SD-1DOX
Gas concentration display
LED(4digits
・
7segments)
Measuring range
0 - 50vol%
Detection method
Aspirator suction type
Sampling condition
Atmosphere equivalent (Compressed air
：
0.1 - 0.7MPa
・
Consumption Max.
3L/min
＜
Atmospheric conversion
＞
)
Suction flow
1.5
±
0.1L/min
Alarm preset point
25vol%(H)
【
Standard
】
Power indication
POWER lamp lighting(green)
Alarm accuracy
(under an identical condition)
Within
±
5vol% to leak alarm(Alarm setpoint value
：
25vol%)
Alarm-delay time
(under an identical condition)
By leak alarm(Alarm setpoint value
：
25vol%),Within 30sec after providing the
gas 1.6 times(without piping delay time)
Gas alarm type
Single alarm(H)
Gas alarm indication
ALM lamp lighting(red)
Gas alarm action
Auto-recover
Trouble alarm
・
Self
diagnosis
System failure/Sensor failure
Trouble alarm indication
FAULT lamp lighting(yellow)/content display
Trouble alarm action
Auto-recover
Transmission scheme
Two-wire analog transm digital transmission(HART communication) or
Three-wire analog transmission(in common with power supply<power
supply,signal,common>)
Specification of
Transmission
DC4 - 20mA
(linear
・
load resistance less than 300
Ω
)
Communication scheme
HART7
Transmission cable
CVVS 1.25 mm
2
- 4-core or 3-core
CVVS 2.0mm
2
- 4-core or 3-core
Transmission distance
Less than 1.25km in case of CVVS 1.25mm
2
Less than 2.0km in case of CVVS 2.0mm
2
Power supply
DC24V
±
10%
Power consumption
MAX.1.1W
Cable connecting port
Adapter A<NPT1/2> or adapter B<NPT3/4> or
Pressure proof packing gland <G3/4> (Compatible cables
φ
9.6 - 13.0mm in
outer diameter)
Tube connecting port
*1
Gas inlet
：
Rc1/4(with PP union<for PTFE pipe> for O.D
φ
6-1
ｔ
)
Gas outlet
：
Bs union(for Cu pipe) for O.D
φ
8-1
ｔ
Compressed air inlet
：
BS union(for Cu pipe) for O.D
φ
8-1
ｔ
Initial clear
Approx.25sec
Operating temperature
-10 - +40
℃
(non-rapidly-vary)
Operating humidity
Less than 95%RH(non-condensing)
Structure
Wall mounting sampling unit
Explosion-proof structure
Flame proof structure
Explosion-proof grade
Ⅱ
2G Ex db
Ⅱ
C T6 Gb(ATEX) / Ex db
Ⅱ
C T6 Gb(IECEx)
Outer dimension
Approx.400(W)×265(H)×102(D)mm(projection excluding)
Weight Approx.6.3kg
Color Munsell
7.5BG5/2
*1 When a half-union for gas IN side is changed, check also the external filter (IN/OUT diameter) carefully.
Summary of Contents for SD-1DOX-AS
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Page 61: ...10 Product Specifications 10 1 List of specifications 59 Outline Drawings Adapter A NPT1 2...
Page 65: ...10 Product Specifications 10 1 List of specifications 63 Outline Drawings Cable gland G3 4...
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