10 Product Specifications
10-1. List of specifications
- 54 -
<TIIS 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
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 - +53 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
Ex d II C T6 X(TIIS<Japan>)
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.
Summary of Contents for SD-1DRI-AS
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Page 55: ...10 Product Specifications 10 1 List of specifications 53 Outline Drawings Adapter B NPT3 4 ...
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