Riken Keiki SD-1RI, Operating Manual

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10 Product Specifications 10-1. List of specifications
- 49 -
<TIIS Specifications>
Model SD-1RI
Detection principle
Non-dispersive infrared absorption method
Detectable gas Combustible gas
Gas concentration display LED(4digits
・
7segments)
Measuring range Depend on Detectable gas
Resolution Depend on Detectable gas
Detection method Diffusion method
Alarm preset point Depend on Detectable gas
Power indication POWER lamp lighting(green)
Output Gas concentration signal
Alarm contact(Gas alarm or Trouble alarm or Gas
・ Trouble common alarm)
Alarm accuracy
(under an identical condition) Within ±25% to the alarm setpoint value
Alarm-delay time
(under an identical condition) Within 30sec
(when introducing 1.6 times thicker gas than alarm setpoint value)
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
Alarm contact No-voltage contact 1a ・ Non-exciting at normal(exciting at alarm) or exciting at
normal(non-exciting at alarm)
Contact capacity 250VAC - 0.5A/30VDC - 0.5A(resistive load)
Transmission scheme Three-wire analog transmission
(in common with power supply<power supply,signal,common>)
Specification of transmission 4 - 20mA DC (linear/load resistance less than 300 Ω )
Transmission cable CVVS1.25 mm
2
or 2.0mm
2
- 3-core(when the contact is not used)
CVVS1.25 mm
2
or 2.0mm
2
- 5-core(when the contact is used)
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
24 VDC±10%
Power consumption MAX.2W
Cabling port Flame proof packing method<G3/4>(Compatible cables
φ
9.6
～
13.0mm in outer diameter )
Initial clear Approx.25sec
Operating temperature Depend on Detectable gas(non-rapidly-vary)
Operating humidity Less than 95%RH(non-condensing)
Structure Wall mounting type
Explosion-proof structure Flame proof structure
Explosion-proof class Ex d Ⅱ C T6 X(TIIS<Japan>)
Outer dimension Approx.148(W)×167(H)×88(D)mm(projection excluding)
Weight Approx.2.0kg
Color Munsell
7.5BG5/2
* The ambient temperature range which maintain a capability of explosion proof of the label on the detector is -20 ～ +53 ℃ . However,
the available operating temperature range is different depending on detectable gas (P 51).