Riken Keiki SD-D58-AC-GH, Руководство по эксплуатации

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10-1. List of specifications
75
SD-D58 Series
[SD-D58
・
DC
・
GH(TYPE H)]
＜
Japan Ex Specifications
＞
Model SD-D58
・
DC
・
GH
Type TYPE H
Detection principle Semiconductor type
Detection gas Combustible gas / toxic gas
Display Seven-segment LED (four-digit)
Detection range Depend on detection gas
Resolution Depend on detection gas
Detection method Sample-drawing
Flow rate 1.0 L/min or more (at maximum suction pressure of 5.0 kPa <gauge pressure>)
Alarm setpoints Depend on detection 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)
Response time (under the
same conditions) Within 30 or 60 seconds after providing the gas 1.6 times the alarm setpoint
(depends on the gas to be detected, excluding delay in the tube)
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/low flow rates
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 (resistant load)
Transmission system Three-wire type analog transmission (common cable for power and signal<power,
signal, common>)
Transmission specifications 4 - 20mADC (no-insulation/load resistance under 300 Ω )/
HART7(HART communication)
Power/contact/transmission
cable Shielded cable of CVVS, etc. (1.25mm
2
or 2.0mm
2
) - 3-core (when the contact is not
used)
Shielded cable of CVVS, etc. (1.25mm
2 or 2.0mm 2 ) - 5-core (when the contact is
used)
Transmission distance Less than 250m in case of CVV 1.25mm 2
Less than 450m in case of CVV 2.0mm 2
Functions Alarm delay/suppression
Power supply 24 VDC ±10%
Power consumption Maximum 8.7W
Cable connecting port
Pressure proof packing gland<G3/4>(Compatible cables φ 9.0mm
～
in outer
diameter)
Tube connecting port
Rc1/8 (O.D

8-1t half-union for Cu tube <Bs> supplied or half-union for SUS tube
<SUS>)
Operating temperature -20 - +53ºC (Non-rapidly-vary)
Operating humidity Below 95% RH (Non-condensing)
Structure Wall mounting type (2B<50A> pipe installation supported)
Explosion-proof structure Flame-proof enclosures
Explosion-proof class
Ex d
Ⅱ
B+H2 T4
IP rating Equivalent to IP67
Dimension Approx. 197 (W) x 286 (H) x 140 (D) mm (projection portions excluded)
Weight Approx. 5.8 kg
Outer color Munsell 7.5BG5/2
* Specifications subject to changes without notice.