Z SIEGER 2104B2111 RX SHORT FLAMMEBLE DETECTOR 32VDC 10W SEARCHLINE EXCEL #2
- BAS 98ATEX2165X
- EEx d IIC T5 (Tamb-40TO+65C)
- Â Â Â Â Â Â Â Â T6 (Tamb-40TO+40C)
- AUS Ex 3649X Ex d IIC
- T5 (Tamb=+65C) T6 (Tamb=+40C)
- PART NO: 2104B2111 RX SHORT
- S/NO: 05/08/160
- MOD: 878910
Product:Â Searchline Excel 2 (SearchLine Excel #2)
Model:Â 2104B2111
Manufacturer: Z. Sieger (now part of Emerson Automation Solutions)
Type:Â Fixed Point Flammable Gas Detector
Key Features:
- Detection:Â Open-path (or “line-of-sight”)Â flammable gas detector. It detects hydrocarbon gases (like methane, propane) by sensing along an invisible beam between the transmitter and receiver.
- Technology:Â Likely uses infrared (IR) absorption technology (common for the Searchline Excel series) for reliable detection, immune to poisoning and many environmental factors.
- Application:Â Designed for monitoring large, open areas for gas clouds (e.g., offshore platforms, refineries, chemical plants, LNG terminals).
- Power Rating:Â 10W
- Operating Voltage:Â 32 VDCÂ (Standard for many industrial fixed gas detectors).
- Certification: RX likely indicates that it is ATEX/IECEx certified for use in Explosive (Ex) atmospheres. “RX” often stands for the certification type for “Increased Safety” and “Non-incendive” protection concepts.
- “SHORT” likely indicates the detection range version. The Searchline Excel 2 comes in different range models (e.g., Short, Standard, Extended). “Short” is typically for ranges up to 30-60 meters.
Probable Full Description:
Emerson Z. Sieger Searchline Excel 2 Open Path Flammable Gas Detector.
Model 2104B2111 is a short-range, 32 VDC, 10W, ATEX/IECEx certified (RX) infrared line-of-sight detector designed for reliable monitoring of hydrocarbon gas leaks in hazardous areas.
Typical Specifications (Inferred):
- Detection Principle:Â Infrared (IR) Absorption (Open Path)
- Target Gases:Â Methane & other hydrocarbons
- Range:Â Short Path (e.g., 0-30m or 0-60m)
- Output:Â Industry-standard 4-20mA analog and digital (HART protocol likely)
- Enclosure:Â Robust, corrosion-resistant for harsh industrial environments
- Certifications:Â ATEX, IECEx, SIL 2 capable (typical for this series)



































