Riken Keiki SD-1DRI-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 Specifications>
Detection principle Non-dispersive infrared absorption type
Detectable gas Combustible gas / Toxic gas
Applicable gas detector head SD-1DRI
Concentration display Seven-segment LED (four-digit)
Detection range Depend on Detectable gas
Display resolution Depend on Detectable gas
Detection method Aspirator suction type
Sampling condition
Equivalent to atmospheric pressure (compressed air: 0.1 - 0.7 MPa, maximum use amount: 3
L/min <converted into atmospheric pressure>)
Flow rate 1.5 ± 0.1 L/min
Alarm setpoint Depend on Detectable gas
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% to the alarm setpoint value (Combustible gas)
Within ±30% to the alarm setpoint value (Toxic gas)
Alarm delay time
(under the same conditions)
Within 30sec or 60sec
(when introducing 1.6 times thicker gas than alarm setpoint value)
(Depend on gas, without piping delay time and communication delay time)
Gas alarm type One-step alarm (H)
Gas alarm display ALM lamp on (red)
Gas alarm pattern Non latching (auto-reset)
Fault alarm/self diagnosis System abnormalities/sensor abnormalities
Fault alarm display FAULT lamp on (yellow)/detail display
Fault alarm pattern Non latching (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 (resistance 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 , resolution divided into 200)
Transmission cable
CVVS1.25mm
2
or 2.0mm
2
- 3-core (when the contact is not used)
CVVS1.25mm
2
or 2.0mm
2
- 5-core (when the contact is used)
Transmission distance Below 1.25 km
Various functions Alarm delay/suppression
Power supply 24 VDC (17 – 26.4 VDC)
Power consumption Maximum 2 W
Cable connecting port
Pressure proof packing gland
(Cable gland<G3/4> or Adapter A<NPT1/2> or Adapter B<NPT3/4>)
Tube connecting port
Gas IN: Rc1/4 (O.D Φ 6-1t, half-union for Cu or SUS tube <Bs or SUS> supplied)
OUT: O.D Φ 8-1t, flare union for Cu or SUS tube (Bs or SUS)
Compressed air IN: O.D Φ 8-1t, flare union for Cu tube
Initial clear Approx. 25 seconds
Operating temperatures -20 - +60 C (at a constant condition)
Operating humidities Below 95% RH (Non-condensing)
Structure Wall mounting sampling unit (Cu or SUS type)
Explosion-proof structure Flame-proof enclosures
Explosion-proof class Ⅱ 2G Ex db Ⅱ C T6 Gb(ATEX) / Ex db Ⅱ C T6 Gb(IECEx)
External dimensions Approx. 400 (W) x 265 (H) x 102 (D) mm
Weight Approx. 5.6 kg
Outer color Munsell 7.5BG5/2
* When a half-union for gas IN side is changed, check also the external filter (IN/OUT diameter) carefully.