Gas Detection XCL
VESDA Sensepoint XCL XCL-VEA-CH4-RA CH4 4-20mA Detector
- Ordering code
- XCL-VEA-CH4-RA — VESDA Sensepoint XCL CH4 0-100% LEL 4-20mA Relay for VEA
- Gas detected
- Combustible (CAT): 0 – 100% LEL (Methane, Hydrogen, Propane, Ethanol, Butane, Octane, etc.)
- Factory calibration
- CAT: Factory calibrated to CH4
- Supply voltage
- 24 VDC nominal; 11 to 32V DC (Analog 4-20 mA); 9 to 32V DC (Modbus); 24V AC 50/60Hz Nominal (20 to 27 VAC)
- Maximum inrush current
- 850 mA (24V DC)
- Ingress protection
- IP65, Type 4 (NEMA 250)
- Operating temperature
- −20 to +50 °C (−4 to +122 °F)
Overview
What it is and how it fits the system.
The XCL-VEA-CH4-RA is a VESDA Sensepoint XCL aspirated combustible (CAT) gas detector that inserts in-line into a VESDA-E VEA micro bore tube network, measuring 0-100% LEL and factory-calibrated to methane (CH4). It provides 0 to 22 mA analogue output plus two relays, runs on 24V DC nominal and is rated IP65 (Type 4 / NEMA 250) in a 113 x 113 x 59 mm enclosure.
Technical overview
XCL-VEA-CH4-RA is an Xtralis aspirated flammable-gas detector from the VESDA Sensepoint XCL range, designed to sit in-line within the microbore tube network of a VESDA-E VEA system and to report over a 4-20 mA analogue loop with relay signalling. Factory calibration targets methane, while the catalytic sensing element also responds to other combustible gases, hydrogen and propane among them, across a 0 to 100% LEL span.
Fitting into a new or existing VESDA-E VEA installation happens in-line: the housing couples to the network's 6 mm outside-diameter microbore tube through flexible tube connections. A Bluetooth 4.0 (Bluetooth Low Energy) link accepts connection from a compatible smart device running iOS 10 or Android 4.3 or above at up to 10 m, integral LEDs show alarm status at the unit, and the configurable relays and analogue signal tie into fire alarm control panels, PLCs, HVAC plant and building management systems, with VSC and VSM4 integration for remote access to detectors (Modbus).
Approvals take in UL2075 (CO and CH4) and AS 1668.2 alongside EN 50270 for EMC and conformity to EN/UL/IEC61010-1. The XCL-SC-CH4 cartridge replaces the catalytic sensing cell, XCL-FILTER covers filter changes in packs of ten, and XCL-VEA-CH4-RA-5 orders the same detector as a pack of five.
Specifications
Full technical data for this part.
| Ordering code | XCL-VEA-CH4-RA — VESDA Sensepoint XCL CH4 0-100% LEL 4-20mA Relay for VEA |
|---|---|
| Gas detected | Combustible (CAT): 0 – 100% LEL (Methane, Hydrogen, Propane, Ethanol, Butane, Octane, etc.) |
| Factory calibration | CAT: Factory calibrated to CH4 |
| Supply voltage | 24 VDC nominal; 11 to 32V DC (Analog 4-20 mA); 9 to 32V DC (Modbus); 24V AC 50/60Hz Nominal (20 to 27 VAC) |
| Maximum power consumption | 1.2 W (Analog 4-20mA) (toxic), 1.7W (flammable and CO2); 0.7 W (Modbus) (toxic), 1.2W (flammable and CO2); Relay Version: additional 0.6W total |
| Maximum inrush current | 850 mA (24V DC) |
| Output | Analog Output: 0 to 22 mA; Digital Output: Modbus RTU; Relay Output: 2 relays (24 V DC / 250 V AC, 5 A) |
| Dimensions | 113 x 113 x 59 mm (4.4 x 4.4 x 2.3 in) (WxHxD) |
| Weight | 500 g (1.1 lb) |
| Ingress protection | IP65, Type 4 (NEMA 250) |
| Casing material | Polycarbonate (charcoal colour) |
| Operating temperature | −20 to +50 °C (−4 to +122 °F) |
| Storage temperature | 0 to +30 °C (+32 to +86 °F) |
| Humidity | 0 to 99% (non-condensing); Flammable catalytic versions: 10 to 90% RH. Operating the detector outside this range may result in increased drift and a reduction in detector accuracy. |
Specifications sourced from manufacturer documentation.
Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know
Spares & replacement parts
Replacement parts for units already in service.
XCL Sensor-Flam Catalytic
Replacement CH4 catalytic sensor cartridge for the XCL CH4 detector.