VESDA XCL-LB-CH4-RM Large Bore Flammable Gas Detector (100% LEL, Modbus)

The XCL-LB-CH4-RM is a VESDA Sensepoint XCL – Large Bore aspirated gas detector for flammable gases, catalytic (CAT) (20–100% LEL), with Modbus RTU output and two programmable relays. It fits in-line in a VESDA or other ASD large bore pipe network, so the same pipework provides multi-point gas sampling alongside smoke detection, and it integrates with BMS, fire panels, PLCs and HVAC systems.

Key features

• Inserted in-line into the ASD pipe network, using the pipe flow to deliver air samples from multiple sampling holes to the gas sensor
• Remote sampling lets the detector sit outside the protected zone for convenient service and maintenance
• Bluetooth interface pairs with the Sensepoint App for commissioning, diagnostics, configuration, calibration and bump testing
• Integral alarm status LEDs and gas port for bump test and calibration
• Field-replaceable gas sensor cartridge
• Modbus version integrates with Xtralis VSC and VSM4 for remote access to detector status; can network to the VESDA Sensepoint 301C Gas Controller for extra relay outputs

Technical specifications

• Part number: XCL-LB-CH4-RM
• Gas: flammable gases, catalytic (CAT)
• Range: 20–100% LEL
• Output: Modbus RTU plus relays
• Supply: 24 V DC nominal (9 to 32 V DC) or 24 V AC (20 to 27 V AC)
• Maximum power: 2.2 W (flammable, Modbus) plus 0.6 W for relays
• Humidity: 10 to 90% RH for CAT versions
• Dimensions (W x H x D): 113 x 113 x 59 mm
• Weight: 500 g
• Casing: polycarbonate; IP65, Type 4 (NEMA 250)
• Pipe compatibility: ASD pipe networks of 25 mm or 27 mm OD
• Relays: 2 configurable (alarm, fault), 24 V DC / 250 V AC, 5 A
• Terminals: pluggable rising clamp, 0.5 to 1.5 mm²
• Operating temperature: −20 to +50 °C; atmospheric pressure 90 to 110 kPa
• Approvals: EN/UL/IEC 61010-1, CSA-C22.2 No. 61010-1-12, CE (EN 50270), RED, FCC, Bluetooth SIG
• Replacement sensor: XCL-SC-CH4

What's in the box

• Detector unit, pre-installed with sensor cartridge
• Flow cap
• 60° elbows