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Zareba Searchline Excel Cross-Duct Infrared Flammable Gas Detector
Excel Cross Duct is a Hazardous Area certified infrared open path gas
detector, for use in HVAC intakes and exhausts. There are 2 types:
Short Range for ducts 0.5m - 2.5m width (ATEX and UL) and Long Range
for ducts 2.5m - 5.0m width (ATEX ONLY).
Hazardous area approvals include European (ATEX) and North
American (UL). Receiver output is 3 wire 4-20mA selectable sink or
source.
Standard calibration is Methane (gas mixtures where Methane is the main
constituent (>70%) and the balance is other hydrocarbons).
The DX termination unit (UL only) provides convenient mounting and
field wiring connections as well as an intrinsically safe connection
socket for the Handheld Interrogator. Additionally, the DX termination
unit (UL only) allows for a multi drop Modbus RS485 interface. The
Handheld Interrogator is a commissioning / maintenance tool and is
certified for use in hazardous areas. For direct connection to the Excel
system, the SHC protection device module must be used.
It is important to ensure the suitability of an application for Excel
Cross-Duct before ordering. Alarm levels should be set no lower than
20%LEL for the short range unit and 10% for the long range unit. The
installation must be made where it is protected from dirt and
condensation. Regular routine maintenance should include cleaning
the reflector tiles, re-zeroing and functional test using the test filters.
Data Sheet
Technical Handbook
Installation Guide
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Features & Benefits
 Fast speed of response provides earliest warning
High sensitivity allows low alarm set points
Works in inert atmospheres
Quick Specs
Response speed: T90 less than 1 second
Detection Range: 0 to 100% LEL
Operating temperature: -40° to +50°C (-40° to 122°F) ambient
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Part Numbers
Excel Cross-Duct Short Range 0.5m - 2.5m
2104N4214 Excel cross-duct gas detection system, short range (0.5 to 2.5m), 4 to 20mA (source)
and Modbus outputs, ATEX/IECEx, fully wired with flexible conduit, electro polished
316SS. Includes detection block, single tile heated reflector panel, Ex e junciton box
with M20/M25 cable entries and 316SS mounting plate. Methane calibration only.
2104N1010 Excel cross-duct gas detection system, short range (0.5 to 2.5m), 4 to 20mA (source)
and Modbus outputs, UL, fully wired with flexible conduit, electro polished 316SS.
Includes detection block, single tile heated reflector panel and 316SS mounting plate.
Methane calibration only.
seperately.
Excel Cross-Duct Long Range 2.5m - 5.0m
2104N4224 Excel cross-duct gas detection system, long range (2.5 to 5.0m), 4 to 20mA (source)
and Modbus outputs, ATEX/IECEx, fully wired with flexible conduit, electro polished
316SS. Includes detection block, quad tile heated reflector panel, Ex e junciton box
with M20/M25 cable entries and 316SS mounting plate. Methane calibration only.
Installation Accessories
2440K0004 Duct mounting kit for use with UL approved short range cross duct systems.
Comprises DX100M, junction box and flexible conduit.
2441-0027 8 terminal junction box for remote mounted cross duct systems ( 3 x 3/4"NPT entries)
00780-A-0100 Honeywell Junction Box- Bartec OTB122 With Continuity Plate 1 X 25mm - 3 X 20mm
Entries - ATEX Approved
2104B0715 Heated Reflector Panel for Short Range ATEX
2104B0717 Heated Reflector Panel for Short Range UL Certified
2104B0716 Heated Reflector Panel for Long Range ATEX
2104D0752 Reflector Panel Heater
2104D0850 Reflector Panel Heater HSG 4 TILE
2104D2505 Mounting plate, Cross-Duct, Stainless Steel
2104D2506 Support strap, Cross-Duct mounting plate
2104D2542 Support strap, Cross-Duct retro-reflector for Long Range
2104D2541 Support strap, Cross-Duct retro-reflector for Short Range
Hand Held Interrogators
04230-A-1001 Hand Held Interrogator ATEX Certified (4V0 software) for Optima, Optima Plus and
Excel
2104B2351 Hand Held Interrogator UL Certified (4V0 software) for Optima, Optima Plus and Excel
2108B1455 Hand Held EEPROM upgrade (4V0)
04230-A-1025 SHC protection device module and lead
2104B6250 SHC Calibrator Connector System 10m
Termination Units
157-001-100 Termination Unit, Black GRP, Ex e, 1 x M25 and 4 x M20 cable entries, 12-way
terminal strip, 2 x earth terminals. Includes 4 way links, 4 x M20, and 1 x M25 stopping
plugs.
2104B2382 DX100M XP Termination Unit UL with Modbus capability
Gas Test Equipment
2104N3000 Excel Cross-Duct test filters kit & manual
Installation Accessories
2108D0271 Remote gassing pipe
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Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.
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