This product appears in the RKI Instruments Catalog
Rolls-Royce
Bureau Veritas
Renouveau La Fontaine
Englobe
National Defence
Government of QuébecOverview
The RKI AC-7400 is a wired gas monitoring controller for up to 12 analog 4-20 mA sensors such as the M2A, S2, GD-70D, T2A, T3A and VOC Pro. Four individually configurable alarm relays, a sunlight-readable graphical LCD and RS-485 Modbus output come in a NEMA 4X enclosure, powered from 12 to 35 VDC or an optional AC supply.
- 12-channel wired monitor for any 4-20 mA wired sensor
- 12 to 35 VDC; optional 120 VAC power supply
- Operates from -40 to +70 °C
- Graphical LCD with LED backlight; 5 push-buttons including SCAN / HOLD and RESET
- 4 configurable alarm set points with 4 dry-contact relays (4 A each), latching or not
- Power and fault status LEDs; relay 4 can act as a fault relay
- RS-485 Modbus output; NEMA 4X fiberglass enclosure with clear window
- 1-year limited hardware warranty
DC or AC power is chosen when you order. Request a quote for pricing and availability.
Specifications
- Product Type
- 12-channel wired gas monitor controller
- Operating Voltage
- 12 to 35 VDC or 120 VAC
- Current Draw
- 300 mA max (8 channel) / 325 mA max (12 channel)
- Protection
- EMI filter; 4-20 mA, RS-485 and RS-232 surge suppression
- Display
- 160 x 104 graphical LCD, transflective, LED backlight
- Interface
- 5 push-buttons (MENU / ADD / SUB / SCAN-HOLD / RESET-ESC)
- Inputs
- 12 analog 4-20 mA
- Compatible Transmitters
- M2A, S2, GD-70D, T2A, T3A, VOC Pro
- Relays
- 4 dry-contact relays with 4 A replaceable fuses; fault terminal; latching or non-latching
- Temperature Range
- -40 to +70 °C
- Enclosure
- NEMA 4X with clear window
- Mounting
- 4 mounting feet, 6 x 12-1/4 in pattern, bolts up to 5/16 in
- Dimensions
- 12 x 10 x 6 in
- Weight
- 12.15 lb
- Warranty
- 1-year limited hardware
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 · Gas Detection Controller| Spec | This model RKI AC-7400 12-Channel Analog Gas Detection ControllerPrice on quote
|  RKI MC-6400 64-Channel Modbus Gas Detection ControllerPrice on quote
|
|---|---|---|
| Channels | 12 | 64 |
| Relays | 4 | 4 |
| Power | 12 to 35 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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