LI-7700 Specifications*

LI-7700 Open Path CH4 Analyzer

Includes power and Ethernet cables, calibration fixture, washer assembly, mounting hardware, instruction manual, spares kit, carrying case, and software CD.

LI-7700 Specifications

  • Resolution (RMS noise): 5 ppb @ 10 Hz and 2000 ppb CH4
  • Measurement Range: 0 to 25 ppm @ -25 °C, 0 to 40 ppm @ 25 °C
  • Data Communication: Ethernet (up to 40 Hz)
  • Detection method: Wavelength Modulation Spectroscopy 2f detection
  • Linearity: Within 1% of reading
  • Operating Pressure Range: 50 to 110 kPa
  • Output Bandwidth: up to 20 Hz
  • Operating Temperature Range: -25 to 50 °C
  • Power Requirements: 10.5 to 30 VDC
  • Power Consumption: 8 W nominal, 16 W during cleaning cycle
  • Dimensions:
    • Sensor: 14.33 cm dia (5.64 inches), 82.8 cm height (32.6 inches)
    • Optical Path: 0.5 m physical path (1.65 ft), 30 m measurement path (98.4 ft)
  • Weight: 5.2 kg (11.5 lbs)
  • User Interface: Windows®based software supports all setup, configuration, and calibration functions through Ethernet connection

7700-101 Specifications

  • Pump operating temperature range: -10 °C to 50 °C
  • Weight: 3.2 kg (7 lbs)
  • Dimensions: 44.5 × 32.8 × 15 cm (17.5 × 12.9 × 6 inches)
  • Fluid capacity: 4 liters (1.1 U.S. Gallon)

LI-7550 Specifications

  • Data Storage: Removable USB Storage Device. 16 Gigabyte Provided (expandable with user supplied Industrial Grade USB Flash Drive)
  • Data Communication:
    • Ethernet: up to 40 Hz
    • Synchronous Devices for Measurement (SDM): up to 33.3 Hz
    • RS-232: 57,600 baud, 20 records per second max.
    • DAC: 0-5 V, 40 Hz
  • Bandwidth: Up to 20 Hz
  • Inputs: Ethernet, 4 analog inputs, differential ±5 V, 16 bit
  • Operating Temperature Range: -25° to 50° C
  • Power Requirements: 10.5 to 30 VDC
  • Power Consumption: 10 W nominal
  • Dimensions: 35 × 30 × 15 cm (13.8 × 12 × 6 inches) external dimensions
  • Weight: 4.4 kg (10 lbs)
*Specifications subject to change without notice.

Scroll to Top