Riken Keiki GP-1DGH, 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 Specifications>
Model SD-1
Type TYPE
GP S
Detection principle Catalytic combustion type
Gas to be detected Combustible gas
Concentration display Seven-segment LED (four-digit)
Detection range
0 - 100% LEL
Display resolution 0.5% LEL
Detection method Diffusion type
Alarm setpoint 25% LEL [standard setting value]
Power display POWER lamp on (green)
External output Gas concentration signal/alarm contact (gas alarm or fault alarm, gas/fault common alarm)
Alarm accuracy
(under the same conditions)
Within ±25% of the alarm setpoint value
Response time
(under the same conditions) Within 30 seconds after providing the gas 1.6 times the alarm setpoint
Gas alarm type One-step alarm (H)
Gas alarm display ALM lamp on (red)
Gas alarm pattern Auto-reset
Fault alarm/self diagnosis System abnormalities/sensor abnormalities
Fault alarm display FAULT lamp on (yellow)/detail display
Fault alarm pattern Auto-reset
Alarm contact
No-voltage contact 1a, de-energized (energized in response to an alarm) or energized
(de-energized in response to an alarm)
Contact capacity 250 VAC - 0.5 A/30 VDC - 0.5 A (resistant load)
Transmission system 3-wire type analog transmission (common cable for power and signal <power, signal, common>)
Transmission specifications 4 - 20 mA DC (linear/load resistance under 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
Functions Alarm delay/suppression/zero follower
Power supply 24 VDC
±
10%
Power consumption Maximum 3 W
Cable connecting port
Adapter A<NPT1/2> or Adapter B<NPT3/4> or
Pressure proof packing gland<G3/4> (Compatibles
φ
9.6 – 13.0 mm in outer diameter)
Initial clear Approx. 25 seconds
Operating temperatures -20 - +60ºC (at a constant condition)
Operating humidities Below 95% RH (Non-condensing)
Structure Wall mounting type
Explosion-proof structure Flame-proof enclosures
Explosion-proof class
Ⅱ
2G Ex db
Ⅱ
C T5 Gb (ATEX) / Ex db
Ⅱ
C T5 Gb (IECEx)
Safety Integrity level IEC 61508:2010 Part2 SIL2 capable
External dimensions Approx. 148 (W) x 149 (H) x 88 (D) mm (projection portions excluded)