The Honeywell Analytics commercial gas controller 301C is designed for simple installation and operation, the 301C continuously monitors and controls toxic gases, combustible gases and oxygen hazards.
Using an addressable RS-485 Modbus communication protocol, the 301C uses daisy chain wiring requiring only 2 pairs of wires to connect up to 96 transmitters on the 3 input channels. This simplifies installation, in turn lowering costs. The Honeywell Commercial Gas Controller 301C’s zoning and averaging abilities significantly reduce operational and maintenance costs.
Zoning / Averaging
The 301C controller offers unique zoning capabilities which permit the averaging and comparison of multiple sensor readings. Zoning can reduce operational costs by ensuring that localized brief fluctuations registered at a single transmitter do not activate relays. For example, a car idling in a parking structure may locally increase a reading at a nearby transmitter. Rather than activating a fan as a result of the temporary localized fluctuation, zoning can be used to limit relay activation until the average reading for a zone exceeds a set-point. This can reduce run time of fans, yielding savings in both energy usage and wear and tear. The 301C has the capacity to manage input from three Modbus channels for up to 96 transmitters and up to 50 wireless transmitters that can be associated with up to 126 zones. Transmitters can belong to an unlimited number of zones, providing maximum operational and control flexibility.
User Friendly
• Zero maintenance
• User Friendly
• Automatic quick self-test and warm-up
• Continuous alphanumeric display
Inexpensive and Reliable
• Low installation costs
• Allows for up to 126 zoning groups which can save energy and extend fan and relay life
• Manages up to 768 events with programmable latching alarms
Flexible Operation
• Modbus compatible; with BACnet/IP available
• Interchangeable transmitters able to detect different gases
• Expands to handle up to 96 transmitters or relay modules
• Programmable time delays
• Integrated time clock enables scheduling of system operations
Safety Measures
• Full array of visual indicators and integrated 65dBA alarm levels
• Fully programmable relays (can be set as fail-safe or not)
Beneficial Options
• Available in a heavy-duty industrial housing
• Datalogging option
General Specification
Use
Modbus controller for centralized gas detection monitoring with real-time gas reading, selective alarm activation
and low cost of installation.
Power Requirement 17-27 Vac, 24-38 Vdc, 500mA
Size 11 (W) x 8 (H) x 2.8 (D) in. (28 x 20.3 x 7 cm)
Weight 2.4 lbs. (1.1 kg)
Network Capacity
Three Modbus channels for up to 96 transmitters, one wireless channel for up to 50 301W wireless transmitters
and an optional BACnet/IP output
Communication Line
Lengths
Up to 2,000 ft. (609 m) per channel
T-Tap: 65 ft. (20 m), maximum per T-Tap
130 ft. (40 m), maximum for all T-Tap combined
Relay Output Rating 5 A, 30 Vdc or 250 Vac (resistive load)
Alarm Levels 3 fully programmable alarm levels
Time Delays 0, 30 sec, 45 sec, 1-99 minutes before and after alarm
Outputs 4 DPDT relays (alarms and/or fault); 65dBA buzzer
Display Large 122 x 32 dot matrix display
Operating Humidity Range 0 to 95% RH (non-condensing)
Operating Temperature
Range
-4° to 122°F (-20° to 50°C)
Ratings and Certification
Certified to CAN/CSA C22.2 No 61010-1
Conforms to
ANSI/UL 61010-1
IEC 61010-1 including Amendments A1:1992+
A2:1995 and National Deviations (Canada, US)
| Honeywell Analytics - Honeywell 301C Controller | |
|---|---|
| Order # | Description |
| 301-ADI | 301-ADI analog digital input converter (4-20mA to Modbus RS-485) |
| 301-AP | 301AP annunciator panel for 301C Controller |
| 301-C-DLC-BIP | 301C Controller with datalogger, BACnet/IP output, plastic enclosure |
| 301-C-DLC | 301C Controller with datalogger, plastic enclosure |
| 301-C | 301C Controller, plastic enclosure |
| 301-R8-FS | 301-R8 relay module with 8 relays, failsafe |
| 301-R8 | 301-R8 relay module with 8 relays |
| 420-I | 420I digital analog output converter, Modbus RS-485 to 4-20mA |
Honeywell Analytics
For nearly 50 years, Honeywell Analytics has been protecting people who put their lives on the line every day. It takes a special level of drive and dedication to work in hostile environments, and we believe your workers deserve the same kind of commitment from us when it comes to securing their health and safety. Right from the start, our founders were determined to find better ways to design, build and manufacture reliable gas detection solutions. Through advanced technology and pure industry know-how, Honeywell Analytics continues to improve and evolve our products. Today, we’re proud to partner with customers worldwide who share our vision of vigilance and rely on us to help them protect what matters most. From custom-designed solutions to unmatched training and support, Honeywell Analytics is simply the smartest choice when you demand the best in safety.
Control toxic or combustible gases and oxygen hazards – 301C Controller from Honeywell Analytics