1. Modular Connectivity: Multichannel Gas Communicator supports up to 80 detectors with RS-485 Modbus RTU network connectivity, enhancing monitoring capabilities.
2. Redundancy Options: Multichannel Gas Communicator allows for a ring topology, providing redundancy and ensuring continuous operation in critical applications.
3. Relay Module Integration: Connects to a maximum of 20 Relay Modules (REL-1200), with each module featuring 2 DPDT relays for comprehensive alarm handling.
4. Multidrop RS-485 Port: Enables efficient cabling by eliminating the need for separate cables to each detector, communicator panel, and Relay Module.
5. Configurable Polling Interval: User-selectable polling intervals (500mSec/1000mSec) for tailored data acquisition and system responsiveness.
6. Graphical LCD Display: Features a 128×64 Graphical LCD display with backlight, ensuring easy readability of data and system status.
7. Common Alarm Setting: Streamlines operation by allowing a common alarm setting for all 80 channels, saving time and effort in individual configurations.
8. Error Detection: Detects ‘Detector Open/Communication Break’ errors and displays messages for prompt identification and resolution.
9. Integrated Buzzer and Relays: Ensures fail-safe operation with an integrated buzzer and three DPDT Relays (AL1, AL2, Fault) for alarm set points.
10. Password-Protected Menu: Enhances security with a password-protected menu, providing controlled access to programming features.
11. User-Friendly Interface: Easy handling and programming facilitated by three front panel keys for intuitive operation.

Technical Specifications:

1. Input:
– 80 detectors with RS-485 Modbus RTU port (Slave Id=1 to 80).
– 20 Relay modules (REL-1200) with IDs ranging from 81 to 100.
2. Display:
– 128×64 Graphical Display with Backlight.
3. Communication Setting:
– Protocol: MODBUS RTU.
– Baud Rate: User-selectable (9600/19200/38400/57600)bps.
– Parity: User-selectable (Odd/Even/None).
– Stop Bits: User-selectable (One/Two).
– Polling Interval: User-selectable (500ms/1000ms).
4. General Error Monitoring:
– Detects ‘Detector Open/Communication Break’ errors and activates fault relay for fail-safe operation.
5. Relay:
– Three DPDT Relays with potential-free contacts (2 NO-C-NC) common for all configured detectors.
6. Programmable Parameters:
– Alarm Set Points: Two (AL1 and AL2), user-programmable.
– Logic: User-programmable (High/Very High, Very Low/Low, Low/High).
– Hysteresis/Time Delay/Snooze: User-programmable.
– Relay Assignment: Configurable for Alarm 1, Alarm 2, and fault (fail-safe operation).
– Latch: Programmable as ‘Enable/Disable’ for Alarm 1 and Alarm 2.
7. Electrical:
– Supply Voltage: 90VAC to 270VAC, 50Hz.
– Power Rating: Less than 80W @240VAC.
– Supply for Detector & Relay Module: 24VDC, 4.5A.
– Cable Cross Section: 2.5mm².
– Cable Required: 2.5mm², 4 core Shielded Armoured/Twisted flexible cable for signals.
8. Environmental:
– Operating Temp.: 0 to 50°C.
– Relative Humidity: Below 95%, RH, Non-condensing.
9. Accessories:
– FLP/WP Junction box enclosure, Relay Module (REL-1200), Hooter cum flasher, RS-485 to RS-232/USB/Ethernet/Wi-Fi Converter.
10. Dimensional Details:
– Degree of Protection Class: IP-66.
– Housing Material: Cast Aluminum LM6 Alloy or cast Iron (C.I.).
– Cable Entry: Flameproof, Weatherproof IP66 Double compression cable gland.
11. Certifications:
– CIMFR Certificate No.: CIMFR/TC/P/1923 Dt.: 26/08/2019.
– PESO Certificate No.: P468728/1 Dt.: 21/02/2020.