This product appears in the RKI Instruments Catalog
Rolls-Royce
Bureau Veritas
Renouveau La Fontaine
Englobe
National Defence
Government of QuébecOverview
The RKI MC-6400 is a 64-channel gas monitoring controller that reads up to 64 RKI gas detectors, such as the M2A, T3A and VOC Pro, over RS-485 Modbus. Four individually configurable alarm relays, a sunlight-readable graphical LCD and a fault terminal come in a NEMA 4X enclosure, on 12 to 35 VDC or an optional AC supply.
- 64-channel wired Modbus controller (RS-485)
- 12 to 35 VDC; optional AC power supply
- Operates from -20 to +70 °C
- Graphical LCD with LED backlight; push-button interface with 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
- Optional horn and / or strobe on the housing
- 1-year limited hardware warranty
DC or AC power and horn / strobe options are chosen when you order. Request a quote for pricing and availability.
Specifications
- Product Type
- 64-channel wired Modbus gas monitoring controller
- Operating Voltage
- 12 to 35 VDC (standard)
- Optional Power Supply
- 85-264 VAC to 24 VDC, 6.25 A (150 W)
- Current Draw
- 275 mA maximum at 24 VDC
- Display
- 160 x 104 graphical LCD, transflective, LED backlight
- Inputs
- Up to 64 RKI gas detectors over RS-485 Modbus
- Compatible Transmitters
- M2A, T3A, VOC Pro
- Relays
- 4 dry-contact relays with 4 A replaceable fuses; fault terminal; latching or non-latching
- Temperature Range
- -20 to +70 °C (-4 to +158 °F)
- Enclosure
- NEMA 4X, waterproof, chemical and weather resistant
- Wiring Hubs
- Two 3/4 in conduit hubs on the bottom (sides or top on request)
- Accessories
- Optional horn and / or strobe on the housing (uses 1 or 2 relays)
- Dimensions
- 10 x 8 x 6 in
- Weight
- 8.5 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 MC-6400 64-Channel Modbus Gas Detection ControllerPrice on quote
|  RKI AC-7400 12-Channel Analog Gas Detection ControllerPrice on quote
|
|---|---|---|
| Channels | 64 | 12 |
| 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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