Gas leak detectors, analyzers, alarm devices and calibration gas
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CALIBRATION TECHNOLOGIES  GG-LEL2-CH4

$691.65     Availability: 3 Days
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CALIBRATION TECHNOLOGIES GG-LEL2-CH4 (1)
  • Overview
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  • Specs
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CTI GG-LEL2 Combustible Catalytic Bead Gas Detector Transmitter (0-100% LEL) for Methane (CH4), Hydrogen (H2), Propane (C3H8), N-Butane (C4H10), Ethane (C2H6), Ethylene (C2H4), N-hexane (C6H14) or N-pentane (C5H12). 4-20 mA output, 24VDC power supply. Explosion proof Copper-free aluminum enclosure for Class l, Div 1, Groups B, C & D. CSA, UL, FM, ATEX and IECEx approved. Optional Relay output.

Part# with Options:        GG-LEL2-CH4
Price with Options:        691.65

Options:    

Gas
(1) Gas for CTI GG-LEL
Relay Output
(2) Fail-Safe Relay Output for Calibration Technologies GasGuard Detectors
RM420 Relay Output

  Availability 3 Days  ]

Key Features
  • Useful for activation of electrical shunt-trip, ventilation, or fuel supply shutoff
  • Industry standard linear 4/20 mA output
  • Calibrated for desired combustible gas 0-100% LEL (specify target gas)
  • Sensing element designed for long life in harsh industrial environments
  • Class l, Div 1, Groups B, C, and D explosion-proof housing
  • Designed to perform in temperatures of -40F to +140F
  • Real-time continuous monitoring

The GG-LEL2 utilizes catalytic-bead sensor technology with a matched pair of detector elements. When combustible vapors enter the sensor, the passive bead remains unchanged while the active detector bead catalyzes the oxidation of gas, generating heat and changing its resistance. The resulting change in resistance is accurately measured across the bridge circuit.

The GG-LEL2 sensor provides an industry standard linear 4/20 mA output signal proportional to 0-100% LEL of the target gas. The transmitter is compatible with most gas detection systems and PLCs.

Long sensor life with minimal span adjustment can be expected in most applications. The sensor is designed for simple calibration and is field replaceable.

Applications
  • Mechanical Rooms
  • Tank Rooms
  • Pulp and Paper
  • Refineries
  • Boiler Rooms
  • Refrigeration Systems
  • Chemical Plants
  • Maintenance Garages
  • Heat Treatment
  • Cold Storage
  • Breweries
  • Process Areas
Benefits
  • Low cost explosion protection
  • Long sensor life (5-7 yrs typical)
  • Simple operation & calibration

The GG-LEL2 is designed to detect and monitor potentially explosive levels of combustible gas vapors in air within the range of 0-100% LEL.

A 3⁄4 NPT threaded conduit entrance is provided on the top of the transmitter housing. Mounting tabs are provided for support of the GG-LEL2. Long sensor life can be expected in most mechanical room applications with a typical sensor life of 5-8 years. Field replaceable sensor element keeps long term maintenance simple and low cost.

SPECIFICATIONS
Input Power:+24 VDC, 80 mA
Detection Principle:Catalytic-Bead
Detection Method:Diffusion
Gases:Ethane C2H6
Ethylene C2H4
Hydrogen H2
Methane CH4
N-butane C4H10
N-hexane C6H14
N-pentane C5H12
Propane C3H8
Range:0/100% LEL
Output Signal:Linear 4/20 mA (max input impedance: 700 Ohms)
Linearity:+/- 0.5% of full-scale
Repeatability:+/- 1% of full-scale
Response Time:T50 = less than 20 seconds
T90 = less than 45 seconds
Accuracy:+/- 5% of value, but dependent on calibration gas accuracy and time since last calibration
Zero Drift:Less than 0.3% of full-scale per month, non- cumulative
Span Drift:Application dependent, but generally less than 1% per month
Temperature Range:-40F to +140F (-40C to +60C)
Humidity Range:5% to 100% condensing
Wiring Connections:3 conductor, shielded, stranded, 20 AWG cable (General Cable C2525A or equivalent) up to 1500 ft
Terminal Block Plugs: (Field Wiring)12-26 AWG, torque 4 lbs-in
Weight:3.5 lbs
Warranty:2 years (including replacement sensor head)
Enclosure:Copper-free aluminum body, epoxy powder coat finish, neoprene gasket, for hazardous areas.
NEC/CEC:
Class I, Division 1, Groups B, C, D
Class II, Division 1, Groups E, F, G
Class II, Division 2, Groups F, G
Class III
NEMA/EEMAC: 3, 4, 4X, 7BCD, 9EFG
UL Standard: 1203
CSA Standard: C22.2 No. 30
FM Classification No.: 3615
ATEX Certificate KEMA 02 ATEX 2265U
IEC Standards EN:60079-0, EN:60079-1, EN:60529
Sensor Head:Stainless steel flameproof enclosure constructed ith an integral stainless steel sinter filter for the safe entry of the atmosphere being detected.
ATEX Certificate CESI 01 ATEX 066 U
Export Info
Made inUnited States
Harmonized Tariff Code (HTC)9027102000

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