Riken Keiki SD-1DOX-AS, Руководство по эксплуатации

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10 Product Specifications 10-1. List of specifications
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10
Product Specifications
10-1. List of specifications
<ATEX/IECEx ・ Oxygen Deficiency 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 - 25vol%
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
18vol%(L)
【
Standard
】
Power indication POWER lamp lighting(green)
Indicate accuracy *1
(under an identical condition)
Within ±0.7vol%
Response time
*1
(under an identical condition)
Within 30sec(T90)(without piping delay time)
Alarm accuracy
*1
(under an identical condition)
Less than ±1vol%(against alarm preset point)
Alarm-delay time *1
(under an identical condition)
By anoxia alarm(Alarm preset point:18vol%), Less than 5sec.
(When introducing 10 - 11vol% gas)(Without piping delay time)
Gas alarm type Single alarm(L)
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
Alarm contact
No-voltage contact 1a
・
Non-exciting at normal(exciting at alarm) or exciting at
normal(non-exciting at alarm)
Contact capacity
AC250V
・
0.5A/DC30V
・
0.5A(resistive load)
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