Macurco 12-Series Fixed Gas Detector

Macurco Alarm/Burglary Gas Detector

The Macurco MRS-485 Adapter is an accessory used to convert the 4 to 20 mA analog signal from Macurco 6-Series type detectors to a digital signal for use with multipoint addressable systems. The Macurco MRS-485 simply plugs into the back of the detector and a single screw fastens it in place. The MRS-485 accepts the 4 to 20 mA output and is powered from the same connection as the detector. The MRS-485 has the ability to interface with building automation systems, control panels, or other control devices that accept Modbus communications.

Features include:

• The Macurco MRS-485 interfaces the detector power and 4 to 20 mA output lines with a mounted connector
• The MRS-485 monitors sensor type, gas level, and trouble status communications from any of the Macurco 6-Series detectors
• Communication is on a Modbus serial line
• Commercial type enclosure to protect and support the electronics
• Tricolor LED indicates power, test, and communication status

The DVP-120M is a Modbus-Enabled Detection and Ventilation Panel with up to 87 Modbus addressable sensors on three channels of 29 sensors per channel, plus the original 12 analog 4 to 20 mA sensor channels. The DVP-120M increases the capacity of the DVP-120 (#25275) from 12 detectors to 99. System wiring includes 4 to 20 mA current loop and RS-485 serial interface.

Features include:

• Same features as the DVP-120 (#25275)
• Coverage Area: Up to 495,000 sq. ft.
• 12 analog (4 to 20 mA) input channels
• 87 addressable sensors on three channels of 29 sensors per channel
• External power supply is required for addressable sensors

The DVP-120 exhaust fan controller, in conjunction with Macurco gas transducers, provides automatic controls to help maintain an acceptable environment in parking garages or other facilities. The DVP-120 system is designed to meet specifications for safety in enclosed parking garages, including the Uniform Building Code and OSHA 50 ppm CO requirements. The DVP-120 can control up to 12 gas sensors in any combination.

Features include:

• External keypad for selection of the transducer/alarm display and configuration
• Externally visible LCD display shows the status of each transducer and relay
• Externally visible system, alarm, and relay status indicators
• Compatible with all Macurco 6-Series and 12-Series gas sensors
• Twelve analog (current loop) input channels
• Three 10 A, 240 VAC SPDT fan/alarm relays
• Drivers for external horn and strobe
• Fail-safe operation can be implemented
• Lockable NEMA 1 type enclosure
• Modular input and output connectors
• ETL Listed to UL 508A, CAN/CSA-C22.2 No. 14-13, LADBS Approved
• Up to three ventilation control zones can be defined
• Each zone can be controlled based on transducer signals and/or time of day
• Each relay is configurable for delay before activation and minimum on time