MSA Senscient ELDS Open Path Gas Detector

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MSA Senscient ELDS Open Path Gas Detector

The Senscient ELDS laser-based open path gas detector is available for a wide range of toxic and flammable gases.

The Senscient ELDS utilises ‘SimuGas’ self-testing to eliminate the need for employees to enter hazardous areas for gas checks. Nuisance false alarms are virtually eliminated with its breakthrough Harmonic Fingerprint processing.

Highlights

  • Gases detected: hydrogen sulfide (H2S), sour gas (H2S/CH4), methane (CH4), ethylene (C2H4), ammonia (NH3), carbon dioxide (CO2), hydrogen chloride (HCl).
  • Gas-specific Harmonic Fingerprint detection eliminates false alarms and prevents plant shutdowns.
  • SimuGas automated function checks are recorded daily, eliminating the need for manual intervention.
  • Tunable lasers scan a narrow portion of the spectrum where water interference from weather conditions is minimised.
  • Bluetooth wireless technology and SITE software simplify commissioning, diagnostics, and event log retrieval.
  • Senscient ELDS lasers are hard on fog, rain, and snow but are easy on the eyes with a Class 1 eye-safe designation.
  • Fastest responding device for safety-critical ventilation zones and cross-duct applications.
  • No costly communication cable is required between the transmitter and receiver.
  • Significantly improves the safety, efficiency, and operational costs of your gas detection program.

Order Information

Gas Part Number Description Approval Measurement Length
AMMONIA (NH3)
NH3 S-1084-3 ELDS ATEX 200 ppm.m 5–40m
NH3 S-1080-3 ELDS ATEX/IECEx 1000 ppm.m 5–40m
NH3 S-1080-4 ELDS CSA/UL 1000 ppm.m 5–40m
NH3 S-1080-5 ELDS EAC TC RU 1000 ppm.m 5–40m
NH3 S-1080-7 ELDS InMetro 1000 ppm.m 5–40m
NH3 M-1080-3 ELDS ATEX/IECEx 1000 ppm.m 40–120m
NH3 M-1080-4 ELDS CSA/UL 1000 ppm.m 40–120m
NH3 M-1080-5 ELDS EAC TC RU 1000 ppm.m 40–120m
NH3 M-1080-7 ELDS InMetro 1000 ppm.m 40–120m
NH3 S-1082-3 ELDS ATEX/IECEx 5000 ppm.m 5–40m
NH3 S-1082-4 ELDS CSA/UL 5000 ppm.m 5–40m
NH3 M-1082-3 ELDS ATEX/IECEx 5000 ppm.m 40–120m
NH3 M-1082-4 ELDS CSA/UL 5000 ppm.m 40–120m
NH3 M-1087-3 ELDS ATEX/IECEx 15000 ppm.m 40–120m
NH3 M-1087-4 ELDS CSA/UL 15000 ppm.m 40–120m
NH3 S-1087-3 ELDS ATEX/IECEx 15000 ppm.m 5–40m
NH3 S-1087-4 ELDS CSA/UL 15000 ppm.m 5–40m
CARBON DIOXIDE (CO2)
CO2 S-1070-3 ELDS ATEX/IECEx 300000 ppm.m 5–40m
CO2 S-1070-4 ELDS CSA/UL 300000 ppm.m 5–40m
CO2 S-1070-5 ELDS EAC TC RU 300000 ppm.m 5–40m
CO2 S-1070-7 ELDS InMetro 300000 ppm.m 5–40m
CO2 M-1070-3 ELDS ATEX/IECEx 300000 ppm.m 40–120m
CO2 M-1070-4 ELDS CSA/UL 300000 ppm.m 40–120m
CO2 M-1070-5 ELDS EAC TC RU 300000 ppm.m 40–120m
CO2 M-1070-7 ELDS InMetro 300000 ppm.m 40–120m
ETHYLENE (C2H4)
C2H4 S-1092-3 ELDS ATEX/IECEx 1 LFL.m 5–40m
C2H4 S-1092-4 ELDS CSA/UL 1 LFL.m 5–40m
C2H4 S-1092-5 ELDS EAC TC RU 1 LFL.m 5–40m
C2H4 S-1092-7 ELDS InMetro 1 LFL.m 5–40m
C2H4 M-1092-3 ELDS ATEX/IECEx 1 LFL.m 40–120m
C2H4 M-1092-4 ELDS CSA/UL 1 LFL.m 40–120m
C2H4 M-1092-5 ELDS EAC TC RU 1 LFL.m 40–120m
C2H4 M-1092-7 ELDS InMetro 1 LFL.m 40–120m
C2H4 L-1092-3 ELDS ATEX/IECEx 1 LFL.m 120–200m
C2H4 L-1092-4 ELDS CSA/UL 1 LFL.m 120–200m
C2H4 L-1092-5 ELDS EAC TC RU 1 LFL.m 120–200m
C2H4 L-1092-7 ELDS InMetro 1 LFL.m 120–200m
C2H4 S-1091-3 ELDS ATEX/IECEx 10000 ppm.m 5–40m
C2H4 S-1091-4 ELDS CSA/UL 10000 ppm.m 5–40m
C2H4 S-1091-5 ELDS EAC TC RU 10000 ppm.m 5–40m
C2H4 S-1091-7 ELDS InMetro 10000 ppm.m 5–40m
C2H4 M-1091-3 ELDS ATEX/IECEx 10000 ppm.m 40–120m
C2H4 M-1091-4 ELDS CSA/UL 10000 ppm.m 40–120m
C2H4 M-1091-5 ELDS EAC TC RU 10000 ppm.m 40–120m
C2H4 M-1091-7 ELDS InMetro 10000 ppm.m 40–120m
S-1060-3 ELDS ATEX/IECEx 50 ppm.m 5-60m
S-1060-4 ELDS CSA/UL 50 ppm.m 5-60m
S-1060-5 ELDS EAC TC RU 50 ppm.m 5-60m
S-1060-7 ELDS InMetro 50 ppm.m 5-60m
S-1063-3 ELDS ATEX/IECEx 1000 ppm.m 5-60m

Hydrogen Sulfide (H2S)

Part Number Description Approval Measurement Length
S-2052-3 ELDS ATEX/IECEx 250 ppm.m 5-60m
S-2052-4 ELDS CSA/UL 250 ppm.m 5-60m
S-2052-5 ELDS EAC TC RU 250 ppm.m 5-60m
S-2052-7 ELDS InMetro 250 ppm.m 5-60m
S-2057-3 ELDS ATEX/IECEx 500 ppm.m 5-60m
S-2057-4 ELDS CSA/UL 500 ppm.m 5-60m
S-2057-5 ELDS EAC TC RU 500 ppm.m 5-60m
S-2057-7 ELDS InMetro 500 ppm.m 5-60m
S-2053-3 ELDS ATEX/IECEx 1000 ppm.m 5-60m
S-2053-4 ELDS CSA/UL 1000 ppm.m 5-60m
S-2053-5 ELDS EAC TC RU 1000 ppm.m 5-60m
S-2053-7 ELDS InMetro 1000 ppm.m 5-60m
S-2055-3 ELDS ATEX/IECEx 1500 ppm.m 5-60m
S-2058-3 ELDS ATEX/IECEx 5000 ppm.m 5-60m
S-2058-4 ELDS CSA/UL 5000 ppm.m 5-60m
S-2054-3 ELDS ATEX/IECEx 15000 ppm.m 5-60m
S-2054-4 ELDS CSA/UL 15000 ppm.m 5-60m
S-2054-5 ELDS EAC TC RU 15000 ppm.m 5-60m
S-2054-7 ELDS InMetro 15000 ppm.m 5-60m

Methane (CH4)

Part Number Description Approval Measurement Length
S-1012-3 ELDS ATEX/IECEx 1 LFL.m 5-40m
S-1012-4 ELDS CSA/UL 1 LFL.m 5-40m
S-1012-5 ELDS EAC TC RU 1 LFL.m 5-40m
S-1012-7 ELDS InMetro 1 LFL.m 5-40m
M-1012-3 ELDS ATEX/IECEx 1 LFL.m 40-120m
M-1012-4 ELDS CSA/UL 1 LFL.m 40-120m
M-1012-5 ELDS EAC TC RU 1 LFL.m 40-120m
M-1012-7 ELDS InMetro 1 LFL.m 40-120m
L-1012-3 ELDS ATEX/IECEx 1 LFL.m 120-200m
L-1012-4 ELDS CSA/UL 1 LFL.m 120-200m
L-1012-5 ELDS EAC TC RU 1 LFL.m 120-200m
L-1012-7 ELDS InMetro 1 LFL.m 120-200m
S-1015-3 ELDS ATEX/IECEx 5 LFL.m 5-40m
S-1015-4 ELDS CSA/UL 5 LFL.m 5-40m
S-1015-5 ELDS EAC TC RU 5 LFL.m 5-40m
S-1015-7 ELDS InMetro 5 LFL.m 5-40m
M-1015-3 ELDS ATEX/IECEx 5 LFL.m 40-120m
M-1015-4 ELDS CSA/UL 5 LFL.m 40-120m
M-1015-5 ELDS EAC TC RU 5 LFL.m 40-120m
M-1015-7 ELDS InMetro 5 LFL.m 40-120m
L-1015-3 ELDS ATEX/IECEx 5 LFL.m 120-200m
L-1015-4 ELDS CSA/UL 5 LFL.m 120-200m
L-1015-5 ELDS EAC TC RU 5 LFL.m 120-200m
L-1015-7 ELDS InMetro 5 LFL.m 120-200m
S-1010-3 ELDS ATEX/IECEx 1000 ppm.m 5-40m
S-1010-4 ELDS CSA/UL 1000 ppm.m 5-40m
S-1010-5 ELDS EAC TC RU 1000 ppm.m 5-40m
S-1010-7 ELDS InMetro 1000 ppm.m 5-40m
M-1010-3 ELDS ATEX/IECEx 1000 ppm.m 40-120m
M-1010-4 ELDS CSA/UL 1000 ppm.m 40-120m
M-1010-5 ELDS EAC TC RU 1000 ppm.m 40-120m
M-1010-7 ELDS InMetro 1000 ppm.m 40-120m

METHANE – CH4 – FM APPROVED VERSION

Part Number Description Approval Measurement Length
S-1012-1 ELDS FM 1 LFL.m 5-40m
M-1012-1 ELDS FM 1 LFL.m 40-120m
L-1012-1 ELDS FM 1 LFL.m 120-200m
S-1015-1 ELDS FM 5 LFL.m 5-40m
M-1015-1 ELDS FM 5 LFL.m 40-120m
L-1015-1 ELDS FM 5 LFL.m 120-200m

METHANE – CH4 – HVAC – VENTILATION ZONE

Part Number Description Approval Measurement Length
VZ-1020-3 ELDS ATEX/IECEx 10% LFL 0.5-5m
VZ-1020-4 ELDS CSA/UL 10% LFL 0.5-5m
VZ-1020-5 ELDS EAC TC RU 10% LFL 0.5-5m
VZ-1020-7 ELDS InMetro 10% LFL 0.5-5m
VZ-1021-3 ELDS ATEX/IECEx 25% LFL 0.5-5m
VZ-1021-4 ELDS CSA/UL 25% LFL 0.5-5m
VZ-1021-5 ELDS EAC TC RU 25% LFL 0.5-5m
VZ-1021-7 ELDS InMetro 25% LFL 0.5-5m
VZ-1022-3 ELDS ATEX/IECEx 100% LFL 0.5-5m
VZ-1022-4 ELDS CSA/UL 100% LFL 0.5-5m
VZ-1022-5 ELDS EAC TC RU 100% LFL 0.5-5m
VZ-1022-7 ELDS InMetro 100% LFL 0.5-5m

METHANE – CH4 – HVAC – CROSS DUCT

Part Number Description Approval Measurement Length
XD-1020-3 ELDS ATEX/IECEx 10% LFL 0.5-5m
XD-1021-3 ELDS ATEX/IECEx 25% LFL 0.5-5m
XD-1022-3 ELDS ATEX/IECEx 100% LFL 0.5-5m

METHANE – CH4 – HVAC – COAL BED

Part Number Description Approval Measurement Length
XC-1021-3 ELDS ATEX/IECEx 25% LFL 0.5-5m
XC-1022-3 ELDS ATEX/IECEx 100% LFL 0.5-5m

Mounting Plates (XC & XD Systems)

Part Number Description Size
A-5123-0 ELDS XD Mount Plate 400mm sq
A-5124-0 ELDS XD Mount Plate 250mm sq
A-5125-0 ELDS XD Mount Plate 180mm sq

SOUR GAS – CH4 / H2S

Part Number Description Approval Measurement Length
S-2013-3 ELDS ATEX/IECEx 250 ppm.m 5-60m
S-2033-3 ELDS ATEX/IECEx 500 ppm.m 5-60m
S-2043-3 ELDS ATEX/IECEx 15000 ppm.m 5-60m

Accessories

Part Number Description
A-5000-1 General Alignment Scope
A-5030-2 Glass Gassing Cell
A-5040-1 Stainless Steel Tags
A-5060-1 Computer (CE/UL Approved)
A-5060-5 Tablet HazLoc
A-5101-1 RS485 Interface Cable
Specifications
DETECTABLE GASES Methane, Ethylene, Ammonia, Carbon Dioxide, Hydrogen Sulfide, Hydrogen Chloride, Sour Gas (CH₄ + H₂S)
UNITS OF MEASURE (configuration / gas dependent)
FLAMMABLE LEL.m, % LEL (cross duct), ppm.m
TOXIC ppm.m
PATH LENGTHS (Configuration / gas dependent)
OPEN AREA DEVICE 5.0 – 200 m (16.4 ft. – 656 ft.)
CROSS DUCT DEVICE 0.5 – 5.0 m (1.6 ft. – 1 6.4 ft.)
APPROVALS
HAZARDOUS AREAS IEC, ATEX, UKCA, UL/CSA, INMETRO
PERFORMANCE FM 6325 (CH₄)
SPEED OF RESPONSE (T90)
FLAMMABLE <1 s cross duct, <3 s (methane, ethylene)
TOXIC <5 s
ENVIRONMENTAL IP66/67
PROTECTION 316L SS enclosures & brackets
OPERATING TEMPERATURE (-40°F to +140°F) (ambient)-40°C to +60°C
ELECTRICAL
(No Tx, Rx communication cable required)
TX 18-32 VDC 12W max
RX 18-32 VDC 10W max
OUTPUTS 4-20 mA + HART
Sub 4 mA low signal, beam block and fault alarms
Modbus RTU
MECHANICAL
(Tx & Rx)
DIMENSIONS ~140 mm dia. x ~300 mm (~5.5” dia. x ~11.8”)
WEIGHT ~12 kg (~26.5 lb.) each, including bracket
OPTICAL
Eye safe laser to IEC 60825-1
Condensation free heated optics
Up to 95% obscuration tolerance
±0.5 degree misalignment tolerance (open area devices)
±2.5 degree misalignment tolerance (cross duct devices)

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