This product appears in the RKI Instruments Catalog
Rolls-Royce
Bureau Veritas
Renouveau La Fontaine
Englobe
National Defence
Government of QuébecOverview
The RKI SD-1 Series is an explosion-proof smart detector / transmitter for % LEL combustibles (catalytic or infrared), ppm organic vapours such as acrylonitrile, ethylene oxide and methylene chloride, CO, H2S and oxygen. It outputs 4-20 mA or HART, runs on 24 VDC and is ATEX / IECEx Ex d IIC T5 approved with IP65/67 protection.
- SD-1GP catalytic and SD-1RI infrared: % LEL combustibles
- SD-1GH semiconductor: ppm organic vapours and toxics such as acrylonitrile, ethylene oxide, n-methyl pyrrolidone and methylene chloride
- SD-1EC electrochemical: CO 0-75 ppm or H2S 0-30 ppm; SD-1OX galvanic cell: O2 0-25 vol %
- Direct digital display of gas readings
- 4-20 mA linear output or HART over 4-20 mA
- SIL2 approval available on IR, EC and OX versions
- Easy maintenance with a magnetic key; microprocessor self-diagnosis
- Explosion proof ATEX / IECEx Ex d IIC T5, IP65/67; 3 W maximum
The target gas, range and output (4-20 mA or HART) are chosen when you order. Request a quote for pricing and availability.
Specifications
- Models
- SD-1GP catalytic / SD-1RI infrared / SD-1GH semiconductor / SD-1EC electrochemical / SD-1OX galvanic cell
- Measuring Ranges
- GP: 0-100 % LEL / GH: ppm ranges by gas / EC: CO 0-75 ppm, H2S 0-30 ppm / OX: 0-25 vol %
- Alarms
- Two programmable set points: increasing / decreasing, latching / self-resetting, on and off delays
- Sampling Method
- Diffusion (flow adapter and air aspiration available)
- Display
- 4-digit digital LED
- Output
- 4-20 mA, HART optional
- Relay
- 1 relay with 4-20 mA versions; no relay with HART versions
- Contact Capacity
- 30 VDC 0.5 A or 120 VAC 0.5 A (resistive)
- Fault Alert
- Circuit / sensor failure, yellow fail lamp
- Power Source
- 24 VDC (17 to 26.4 VDC), 3 W maximum
- Operating Conditions
- -20 to +60 °C / below 95 % RH non-condensing (SD-1EC below 80 % RH)
- Approvals
- Ex d IIC T5, ATEX and IECEx (SD-1GP for H2, CH4, i-C4H10, C3H8); SIL2 available on IR, EC and OX
- Dimensions
- 148 x 161 x 88 mm (5.8 x 6.3 x 3.5 in)
- Weight
- Approx. 2.0 kg (4.4 lb)
- Warranty
- 1 year (RKI warranty policy)
Documents
Calibration and repair
Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.
Compare with similar models
RKI Instruments · Fixed Gas Detector| Spec | This model RKI SD-1 Series Explosion-Proof Gas Detector / TransmitterPrice on quote
|  RKI T2A Explosion-Proof Toxic Gas Detector / Transmitter (2-Wire)Price on quote
|
|---|---|---|
| Output | 4-20 mA / HART | 4-20 mA 2-wire |
| Power | 24 VDC | 12 to 35 VDC |
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
Can ERE calibrate or repair it?
Yes. Our Montréal service shop calibrates and repairs it in-house. Request service
What warranty does it carry?
The manufacturer's warranty applies. The exact terms are in the warranty document. Read the warranty
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