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LasIR™ Fence Line Monitoring Gas Analyzer

LasIR™ Laser-based Fence Line Gas Monitor for Emissions Monitoring

Characteristics
Laser
Near IR tunable diode laser Telecommunication grade lasers for longevity, reliability and availability
Detection Limits
sub-ppmv to % levels depending on species and application.
Consult the factory for your specific application.
Calibration
Factory Test results sent with every unit Internal reference cell, external portable audit module, or in‐line flow through cell
Dynamic Range
5 orders of magnitude
Data Storage
Internal storage & External storage via Ethernet, RS232 or MODBUS-TCP/RTU
Dimensions
Open Path Telescope:
7"(W) x 10"(H) x 14"(L)
Retro-Reflector:
12"(W) x 12”(H) x 8"(D)
Response Time
< 1 second
Environment Conditions
‐10°C to +50°C,
5 – 100% RH,
800 – 1,200 mbar
Outputs and Networking
Up to thirty-two 4‐20 mA Analog Outputs, Ethernet, MODBUS-TCP/RTU, RS232, Six Dry-Contact NC & NO Status Relays
Data Logging and Displaying Software
LasIRView (with Data Review and Statistical Analysis)
Power Supply
+12 VDC; 1A
(100 – 240 VAC @50‐60Hz to +12 VDC adapter supplied)

Unisearch LasIRTM Gas Analyzer is a continuous monitor designed to measure open path both compliance The Controller uses a near infrared (NIR) Tunable Diode Laser Absorption Spectrometer System utilizing a single mode laser mounted in a thermoelectric cooler for unsurpassed accuracy and performance. Since the spectral purity of the laser is high and the selected absorption feature is unique, measurements can be made free of interferences from any other gas. A Windows based software package displays the data on either a Host laptop PC or the client’s existing data acquisition system.

Features & Benefits

  • TDL (Tunable Diode Laser) technology for unmatched accuracy & reliability
  • High sensitivity ppb to percent level measurements
  • One analyzer can be used for up to 16 measurement points
  • Moisture can be added as a second channel for many species
  • Multi-component​ measurements are available for certain species, i.e. CO/CO2, NH3​/HCN, CH4/C2H6​, H2S/CO2/H2​O
  • Performance designed Compliance Monitor
    • Gas sampling/conditioning not required
    • Corrosive/toxic applications
    • Calibration not required
    • Inline/Offline Audit option available
  • Exceeds US-EPA CEMS Regulation requirements
    • MACT & MATS ‐ PS‐18 Compliant
    • Boiler MACT O2 and CO Compliance
    •  Approved Zero & Span Calibration checks
  • Extremely Fast (<1 second) response time
  • Compact and simple to install
  • Ambient conditions from ‐40°C to 70°C
  • Operates in high dust/moisture applications
  • Laser located in controller allowing for simple signal control and diagnostic access
  • Off Stack/Process extractive option
  • Hazardous Area Div I & II options
Power Meter

The fiber/coax power meter is employed to measure both, the laser power transmitted through the fiber optic cable (for fiber optic cable verification) and the return signal as seen directly by the IR detector (for optimizing alignment). The meter is required for measurements at specific wavelengths.  The meter is an essential tool for checking system components and should remain on site with the equipment.

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