The model SD-805 series smart transmitter/detector heads are state of the art instruments housed in a flameproof enclosure.
A simple magnetic control key is placed over clear marked positions on the surface plate to test and adjust the instrument without opening the transmitter/detector head.
Two different detection principles are provided with SD-805 series which enable you to select the most suitable principle according to detection gas, range and application for use. Especially, the Model SD-805RI can detect combustible gases (CH4 and i-C4H10) with 0-100% vol F.S. in inert gas base.
Dual alarm contacts and trouble alarm contact are provided for activation of external buzzer or alarm light. Powered by 24 VDC, the unit has a 4-20 mA output for communication to outside controllers, for external readouts or alarming devices
An extensive range of accessories supplied by RKI rounds up Model SD-805 series. |
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Features:
- For combustible and toxic gases
- Longlife RKI sensors
- Dual alarm contacts
- 4-20mA linear output
- Automatic zero correction function, self-diagnosis
- Explosion proof housing, IP65 ingress class
- ATEX and MED approved (Wheelmark)
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Detection gas
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Lower Explosive Limit (LEL)
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Detection range
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Resolution (digit)
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Methane
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CH4
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5,0% Vol.
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0-100% LEL
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0,5% LEL
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0-100% Vol.
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0,5% Vol.
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Ethylene
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C2H4
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2,7% Vol.
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0-100% LEL
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0,5% LEL
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Ethane
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C2H6
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3,0% Vol.
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0-100% LEL
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0,5% LEL
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Propane
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C3H8
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2,0% Vol.
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0-100% LEL
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0,5% LEL
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Iso-Butane
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i-C4H10
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1,8% Vol.
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0-100% LEL
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0,5% LEL
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0-100% Vol.
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0,5% Vol.
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n-Hexane
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n-C6H14
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1,2% Vol
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0-100% LEL
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0,5% LEL
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IPA
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C3H8O
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2,0% Vol
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0-100% LEL
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0,5% LEL
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Toluene
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C7H8
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1,2% Vol
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0-100% LEL
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0,5% LEL
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MEK
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C4H8O
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1,8% Vol
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0-100% LEL
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0,5% LEL
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Ethyl alcohol
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C2H5OH
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3,3% Vol
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0-100% LEL
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0,5% LEL
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Model
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SD-805RI
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SD-805SC-RI
mit GD-A45RI
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SD-805RID
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SD-805EC
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Detection gas
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Refer to detection gas list |
Carbon Monoxide (CO) in air
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Hydrogen Sulfide (H2S) in air |
Sampling method
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Diffusion sampling
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Sampling drawing
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Diffusion sampling |
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Detection principle
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Infrared sensor (NDIR)
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Electrochemical sensor |
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Detection range
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Refer to detection gas list
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0~150 ppm
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0~30 ppm
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External output
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Alarm contact
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Gas Alarm: Normally open or normally closed for
1st and 2nd alarms
Trouble alarm: Normally open or normally closed
Remarks: Specify either alarm contact when ordering
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Gas Alarm: Normally open or normally closed for
1st and 2nd alarms
Trouble alarm: Normally open or normally closed
Remarks: Specify either alarm contact when ordering
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Signal trans-mission
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Gas concentration: 4-20mA (linear, resistance load
below 300Ω)
Malfunction: 0.5mA
Service: 2.5mA (max. 22mA with limiter)
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Gas concentration: 4-20mA (linear, resistance load
below 300Ω)
Malfunction: 0.5mA
Service: 2.5mA (max. 22mA with limiter)
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Display
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digital LCD-Display with backlight (One-Man-Calibration with magnetic control key) |
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Applicable cable
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Max. 2.0 km
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Power requirement
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3-core 24VDC ± 10% (Max. 4W)
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3-core 24VDC ± 10% (Max. 2.5W)
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Structure
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Flame proof Exd II BT6 approved by Baseefa
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Flame proof Exd II BT4X approved by authority of Japan
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Ingress class
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IP65
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Pending
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Operating conditions
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-10°C ~ +40°C, below 95% R.H. (non-condensing)
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Dimensions
and weight
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Ca. 124 x 233 x 115 mm, 3.5 kg,
SD-805RID approx. 4.0 kg
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Accessories
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Standard: sun shade cover, fuse (1A), magnetic control key
Optional: box type drip proof cover, pole stand, u-bolt for pole stand mounting, calibration kit,
round type splash guard cap with bump gas check function
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Specifications subject to change.
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