Application notes

  • Application note “Sales Gas”
  • Application note “Sour Gas”
  • Application note “H2S in liquid analysis”
  • Application note “H2S and CO2 in gas and oil production”
  • Monitoring compliance with Rule 21 – GATEKEEPER 


  • Brochure TISOMIC

Technical specs

ExcitationTunable Diode Laser (TDL)
DetectionPhoto Acoustic (PA)
ComponentsH2S, H2O, and CO
Number of lasersUp to 4
Number of process streamsUp to 2
Sample wetted partsSS316 (as standard) *
Electronics housing / protectionAluminium (salt water proof according to EN 13195-1) / IP65 NEMA 4x
Cell housing / protectionSS316 / IP65
PA cell dimensions± 100 mm (width)
PA cell temperature50 °C (80 °C optionally)
PA cell pressureAtmospheric
Flow through PA cell< 200 cm3/min
CalibrationOnce every 3 – 6 months
Analog outputs4 x 4 – 20 mA
Communication1 x MODBUS RTU over RS485 and 1 x modbus RTU over TCP/IP
Digital outputs6V, 24V or potential free, 1 x analyzer fault, 5 x programable output
Hazardous area execution built toATEX II 2G Ex db op pr [ib] IIB+H2 T3 Gb
IECEx Ex db op pr [ib] IIB+H2 T3 Gb
CSA Class 1 Zone 1 BCD T3
Ambient conditionsOperating temperature range -20 to 45°C**
UtilitiesPower: 110 – 240 VAC / 40 – 60Hz
Analyzer dimensions1200 x 600 x 500 mm (LxWxD)
Analyzer weight± 150  kg
RangeLow precision: 0 – % Levels (programable)
High precision: 0 – 100 ppm (programable)
RepeatabilityLow precision: 1% of full scale
High precision: 0,3 ppm
HMIExi terminal