NG # 03129-HW-HONEYWELL-377
MF # SLXL-PSMGXX
The Honeywell Searchline Excel™ Plus is an open-path infrared (IR) gas detector designed for fast, reliable detection of flammable hydrocarbon gas leaks across large areas. Instead of measuring gas at a single point, the system uses a separate transmitter and receiver to monitor a defined optical path, making it suitable for applications where gas can disperse over a wide area. It is designed for demanding onshore and offshore oil & gas, petrochemical, and industrial environments
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Get A QuoteThe detector can detect a broad range of hydrocarbons, including methane, ethane, propane, butane, pentane, hexane, ethylene, and propylene. It provides a fast T90 response of less than 3 seconds and supports a detection path of 2 to 120 meters. Advanced diagnostics monitor factors such as optical alignment and window clarity to help maintain detection performance.
Searchline Excel Plus supports 4–20 mA with HART, Modbus, relay outputs, and Bluetooth® connectivity. Its Bluetooth interface can simplify commissioning, configuration, diagnostics, and maintenance without requiring direct physical access to the detector. Honeywell also provides a universal mounting system and alignment tools to make installation easier.
| Specification | Details |
|---|---|
| Product Type | Open-Path Infrared Gas Detector |
| Detection Method | Near-Band Infrared (IR) |
| Target Gas | Flammable Hydrocarbon Gases |
| Primary Gases | Methane, Ethane, Propane, Butane, Pentane, Hexane, Ethylene, Propylene |
| Detection Range | 0–5 LEL·m |
| Path Length | 2–120 m (6–393 ft) |
| Response Time | T90 < 3 seconds |
| Recommended Low Alarm | 1 LEL·m |
| Recommended High Alarm | 3 LEL·m |
| Power Supply | 24 VDC nominal; 18–32 VDC |
| Analog Output | 4–20 mA |
| Communication | HART®, Modbus, Bluetooth® |
| Relay Outputs | 3 SPDT relays – Alarm 1, Alarm 2, Fault |
| Relay Rating | Maximum 32 VDC/AC, 2 A resistive |
| Bluetooth Range | Up to approximately 20 m |
| Operating Temperature | -55°C to +75°C |
| Humidity | 0–99% RH, non-condensing |
| Ingress Protection | IP66/67 |
| Enclosure Material | 316L Stainless Steel |
| Receiver Weight | Approx. 6.1 kg |
| Transmitter Weight | Approx. 6.0 kg |
| Receiver/Transmitter Dimensions | 103 mm diameter × 325 × 180 mm |
| Mounting | Universal mounting bracket |
| Calibration | No routine field calibration required |
| Applications | Oil & gas, petrochemical, offshore platforms, refineries, and industrial facilities |
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