SS2100a gas analyzer

Field of application

The SS2100a gas analyzer measures accurate trace gas components (H₂O, CO₂, H₂S, NH₃, and C₂H₂) in natural gas and hydrocarbon processing applications using tunable diode laser absorption spectroscopy (TDLAS) technology. It requires little maintenance and does not need recalibration or periodic replacement parts. The SS2100a is certified for ATEX Zone 2.

• Gas analysis: ppb level measurement of H₂O & NH₃, ppm level measurement of H₂O, H₂S, CO₂, NH₃, and C₂H₂, and percent (%) level measurement of H₂S and CO₂

• Natural Gas: production, storage, transportation, distribution

• Refinery: hydrogen recycle, catalytic reforming, flaring, cracking

• Gas Processing: fractionation, sour/acid gas removal

• LNG: liquefication, custody transfer

• Petrochemical: cracking, acetylene converter, caustic wash tower

Benefits

• Accurate, real-time measurements

• Low cost of ownership; no consumables; virtually maintenance free and reliable in harsh environments

• Measurements not hampered by wet-up (absorption) or dry-down (desorption)

• Dependable with greater repeatability than surface-based sensors

• Analog and serial outputs for remote monitoring

• Available for the following measurements: H₂O, CO₂, H₂S, NH₃, C₂H₂

• ATEX Zone 2 certified

• Measuring principle

  TDLAS

• Product Headline

  An advanced gas analyzer for hydrogen sulfide (H2S) measurement. The SS2100a uses tunable diode laser absorption spectroscopy (TDLAS) to determine the concentration of the analyte without coming into physical contact with the stream.

• Channels

  1

• Analyte and Measurement ranges

  H2S (Hydrogen Sulfide):
  0 to 10
  0 to 1000 ppmv
  0 to 5000 ppmv
  0 to 5% volume

• Measured Variables

  Concentration
  Cell Pressure
  Cell Temperature

• Ambient Temperature range

  -20 to 50°C (-4 to 122°F)
  Optional: -10 to 60°C (14 to 140°F)

• Operating Pressure range

  Inlet Pressure: 140 to 350 kPa (20 to 50 psig)
  Sample Cell: 800 to 1200 mbara or 950 to 1700 mbara (optional)

• Analyzer Wetted materials

  316L stainless steel
  FKM O-Rings
  Glass

• Power supply

  120 or 240 VAC ± 10 %, 50 to 60 Hz; 60W max (with 2 solenoids) - electronics enclosure
  120 or 240 VAC, 50 to 60 Hz - standard; 100W or 200W max for heated systems - sample cabinet

• Communication

  Analog Output: Two 4-20mA Isolated, 1200 ohms at 24 VDC max load (measurement value)
  Analog Input: One 4-20mA Isolated, 1200 ohms at 24 VDC max load (process pressure)
  Serial: RS232C and Ethernet
  Protocol: Modbus Gould RTU or Daniel RTU or ASCII
  Digital Outputs: 5, Concentration Alarm, General Fault, Validation Fail, Validation 1 Active, Validation 2 Active
  Digital Inputs: 2, Flow Alarm, Validation Request

• Housing materials

  Electronics: Copper-free Aluminum
  Sample System Enclosure: 304 or 316 stainless steel

• Hazardous area approvals

  ATEX Zone 2

• Degree of protection

  IP66

• Product safety

  CE