VESDA XCL Hydrogen Sulphide (H2S) 50ppm (Modbus & Relays)
| Part no. | XCL-LB-H2S-RM |
|---|---|
| Brand | VESDA |
| Range | Gas Detection XCL |

Image for illustration; item supplied may differ
Description
The XCL-LB-H2S-RM is a VESDA Sensepoint XCL Large Bore hydrogen sulphide (H2S) gas detector covering a 50PPM range. With Modbus output and an integral relay, it reports H2S levels across a networked bus while providing local alarm and control switching.
XCL-LB-H2S-RM pairs a Modbus interface with an on-board relay in the Xtralis VESDA Sensepoint XCL Large Bore hydrogen sulphide gas detector, covering a 50PPM measuring range. Readings travel across a networked bus while the relay provides local alarm and control switching, and the Sensepoint App configures the unit - reconfiguration through the app is also the recovery route for EEPROM or Flash memory faults.
Read the full technical description
Servicing relies on dedicated parts: the XCL-SC-H2S replacement sensor renews the 50PPM hydrogen sulphide cell, the XCL-LB-COV-2 sensor cover is the version shared by the CO, O2, H2S, NO2 and H2 variants, and the matching XCL-LB-FLT-2 filter is packaged in tens.
Pipework and installation accessories listed for this detector include the XCL-LB-CAP flow cap, XCL-LB-ELB 60-degree elbows in packs of four and XCL-M20-CG cable glands, with physical connection detail held in the VESDA Sensepoint XCL - Large Bore Installation Manual.
Specifications
| Description | VESDA XCL LB H2S 50PPM MODBUS REL |
|---|---|
| Measured gas | H2S (hydrogen sulphide) |
| Measuring range | 50PPM |
| Output | MODBUS |
| Relay | REL (relay) |
| Product family | VESDA Sensepoint XCL - Large Bore |
Specifications per manufacturer documentation, subject to change. E&OE.
Documents
| Document | Type | Size | Download |
|---|---|---|---|
| Honeywell XCL LB CO2VV RA Gas Detector Manual | Operating | Download PDF |
Optional accessories
- XCL-M20-CGVESDA Sensepoint XCL Cable Glands - Pack of 10Accessory cable glands: XCL-M20-CG VESDA XCL SP CBL GLNDS PK 10£75.90ex VAT£91.08 inc VATIn stock
- XCL-LB-CAPXCL Spare Flow CapAccessory flow cap: XCL-LB-CAP VESDA XCL LB SP FLOW CAP£98.90ex VAT£118.68 inc VATIn stock
- XCL-LB-ELBXCL Large Bore 60° Pipe ElbowAccessory 60 degree elbow: XCL-LB-ELB VESDA XCL LB SP 60DEG ELB PK 4£94.88ex VAT£113.86 inc VATIn stock
- XCL-LB-COV-2XCL Spare Sensor Cover - CO, O2, H2S, H2 & NO2Sensor cover consumable: XCL-LB-COV-2 VESDA XCL LB CO O2 H2S NO2 H2 SENS COV£66.13ex VAT£79.36 inc VATIn stock
- XCL-LB-FLT-2XCL Spare Filter - CO, O2, H2S, H2 & NO2 - Pack of 10Filter consumable: XCL-LB-FLT-2 VESDA XCL LB FLT CO O2 H2S NO2 H2 PK 10£190.90ex VAT£229.08 inc VATIn stock
Spares & replacement parts
- XCL-SC-H2SXCL/XRL Replacement Sensor Hydrogen Sulphide (H2S)Replacement sensor spare: XCL-SC-H2S VESDA XCL RPL SENS H2S 50PPM£169.05ex VAT£202.86 inc VATIn stock