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Model 131S BTU Gas Chromatograph

Brand: Envent Engineering Ltd

The Model 131S Natural Gas Chromatograph (GC) is a simple approach to energy measurement, created and designed for the custody transfer metering of Natural Gas as well as many other BTU applications.
 
Envent provides a Natural Gas platform that is efficiently manufactured to ensure industry-leading delivery while providing a Gas Chromatograph that allows for ease of serviceability.
Features
  • Standard: 4-minute C6+ repeatability ± 0.25 BTU / 1,000 SCF
  • Optional: 2-minute Fast BTU C6+ repeatability ± 0.5 BTU / 1,000 SCF
  • Optional: 5-minute BTU C9+ repeatability ± 0.5 BTU / 1,000 SCF (heated sample system enclosure required)
  • High performance GC columns packed in our Envent GC Lab
  • Reduced carrier usage due to efficient column design
  • Environmental chamber tested prior to shipment

Specifications

Measurement Range

  • Methane: 65 to 100 mol%
  • Ethane: 0 to 20 mol%
  • Propane: 0 to 10 mol%
  • N-Butane & Iso-Butane: 0 to 5 mol%
  • N-Pentane, Iso-Pentane, Neo-Pentane & Hexane+: 0 to 1 mol%
  • Nitrogen & Carbon Dioxide: 0 to 20 mol%

Ambient Temperature

  • -18° to 54° C (0° to 130° F)

Mounting

  • Wall or Floor Mount

Environmental Protection

  • NEMA 4X

Dimensions

  • Standard: 48” H x 24” W x 9” D (122 cm H x 61 cm W x 23 cm D)

Weight

  • Approximately 40 kg (88 lbs)

Power

  • 120 +/- 10% VAC 50/60 Hz Standard
  • 240 +/- 10% VAC 50/60 Hz Available

Power Consumption

  • Start Up: 150 watts
  • Steady State: 60 - 80 watts Nominal

Repeatability

  • C6+ 4-minute Controlled Temperature: ±0.25 BTU / 1,000 SCF (±0.025%) at Ambient
  • C6+ 4-minute Controlled Temperature: ±0.4 BTU / 1,000 SCF (±0.04%) Over Temp Range of -18° to 54° C (0° to 130° F)
  • C6+ 2-minute Controlled Temperature: ±0.5 BTU / 1,000 SCF (±0.05%) at Ambient; ±1 BTU / 1,000 SCF (±0.1%) Over Temp Range of -18° to 54° C (0° to 130° F)

Input/Output

  • 2 Analog Outputs
  • 4 Dry Contact Relay Outputs
  • 4 Digital Inputs
  • 4 Solenoid Outputs

Communication

  • SIM 2251 Modbus Mapping
  • User Modbus Mapping
  • 1 RS-232 Serial Communication Ports (Modbus Capable)
  • 2 RS-485 Serial Communication Ports (Modbus Capable)
  • 1 Ethernet Communication Port RJ-45 (Modbus Capable)

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