This product appears in the RKI Instruments Catalog
Rolls-Royce
Bureau Veritas
Renouveau La Fontaine
Englobe
National Defence
Government of QuébecOverview
The RKI T2A is a 2-wire loop-powered explosion-proof toxic gas detector that uses an electrochemical sensor for gases such as Cl2, ClO2, CO, H2S, HCl, HCN, HF, NH3, NO2, O2, O3, PH3 and SO2. Magnetic switches allow non-intrusive calibration in the field, and it outputs 4-20 mA to RKI Beacon controllers or a DCS / PLC.
- Electrochemical sensor; loop-powered 2-wire 4-20 mA output
- 3-character 7-segment display with backlight
- 3 push-buttons (MENU / ADD / SUB) with matching magnetic non-intrusive switches
- Operates from -40 to +60 °C
- Aluminum enclosure with 303 stainless steel sensor housing; wall mount included
- Main enclosure CQPSUS Class I Div 1 and 2 Groups B C D; NEMA 3, 4, 4X, 7 and 9
- Works with RKI Beacon 110, 200, 410A and 800 controllers and most DCS / PLC systems
- 1-year warranty on electronics and sensor
The gas and range are chosen when you order. Request a quote for pricing and availability.
Specifications
- Sensor Type
- Electrochemical
- Gases and Ranges
- Cl2 0-10 / ClO2 0-1 / CO 0-300 / H2S 0-100 or 0-2,000 / HCl 0-30 / HCN 0-30 / HF 0-10 / NH3 0-100 up to 0-1,000 / NO2 0-20 / O3 0-100 / PH3 0-5 / SO2 0-20 ppm; O2 0-25 % vol
- Hazard Classification
- Class 1 Div 1: CO, H2S, O2, O3, SO2 / Class 1 Div 2: other gases
- Operating Voltage
- 12 to 35 VDC, loop-powered (2-wire)
- Current Draw
- 35 mA maximum
- Display
- 3-character 7-segment with backlight
- Interface
- 3 push-buttons + 3 magnetic non-intrusive switches
- Temperature Range
- -40 to +60 °C (-40 to +140 °F)
- Enclosure
- Aluminum; 303 stainless steel sensor housing
- Approvals
- CQPSUS explosion / flame proof Class I Div 1 and 2 Groups B C D; NEMA 3, 4, 4X, 7 (B C D), 9 (E F G); certification applies to some gases only
- Dimensions
- 5.42 x 6.03 x 7.03 in (8 x 17 in max with attachments)
- Weight
- 5.75 lb
- Warranty
- 1 year, electronics and sensor
Documents
Calibration and repair
Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.
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|  RKI Air Alert Standalone Toxic Gas Detector / TransmitterPrice on quote
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|---|---|---|---|---|
| Output | 4-20 mA 2-wire | 4-20 mA / HART | — | — |
| Power | 12 to 35 VDC | 24 VDC | 12 to 35 VDC | 115-220 VAC |
| Temperature | -40 to +60 °C | — | -40 to +54 °C | -40 to +70 °C |
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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