10 Product Specifications
10-1. List
of specifications
- 47 -
10
Product Specifications
10-1. List of specifications
<ATEX/IECEx/Oxygen Deficiency Alarm Specifications>
Detection principle
Galvanic cell method
Detectable gas
O2
Gas concentration
display
LED(4digits
・
7segments)
Measuring range
0
~
25vol%
Detection method
Diffusion method
Alarm preset point
18vol%(L)
【
Standard
】
Power indication
POWER lamp lighting(green)
Output
Gas concentration signal
Alarm contact(Gas alarm or Trouble alarm or Gas
・
Trouble common alarm)
Indicate accuracy
(under an identical condition)
Within ±0.7vol%
Response time
(under an identical condition)
Within 30sec(T90)
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
Three-wire analog transmission
(in common with power supply<power supply,signal,common>)
Specification of
Transmission
DC4
~
20mA
(linear
・
load resistance less than 300Ω
・
resolution ability 200division)
Transmission cable
Control-use shield cable(AWG 16)
・
3-core or 5-core(by using alarm contact)
Transmission distance
Less than 1.25km
Power supply
DC24V(DC17
~
26.4V)
Power consumption
MAX.1.1W
Cabling port
Flame proof packing method
(Cable gland<G3/4> or Adapter A<NPT1/2> or Adapter B<NPT3/4>)
Initial clear
Approx.25sec
Operating temperature
-10
~
+40
℃
(non-rapidly-vary)
Operating humidity
Less than 95%RH(non-condensing)
Structure
Wall mounting type
Explosion-proof
structure
Flame proof structure
Explosion-proof grade
Ⅱ
2GExd
Ⅱ
CT6Gb(DEKRA/ATEX)(IECEx)
Summary of Contents for PT2-177
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