Gas transmitters

The good nose for oxygen

Your Benefits

  • Fast in-situ measurement directly in the process
  • Easy installation and operation
  • Self-diagnostics with maintenance display
  • Low requirements for gas conditioning
  • Low operating costs: almost no consumables and no purging gas consumption
  • Rugged: reliable measurement also possible even in contaminated gases

The exact device specifications and performance data of the product may deviate from the information provided here, and depend on the application in which the product is being used and the relevant customer specifications.


The good nose for oxygen

Measuring the oxygen in the process can be quite simple. The TRANSIC100LP from SICK is a rugged transmitter that uses tunable diode laser spectroscopy (TDLS) to measure O2 reliably. A technology more common in the world of high-tech analysis is now being used in a field instrument: at an attractive price, easy installation, a long life, low maintenance and suitable for use in explosion-hazardous areas.

At a glance
  • O2 transmitter based on high-performance laser spectroscopy (TDLS)
  • For use in use in explosion-hazardous areas (FM, ATEX and IECEx approvals)
  • Measurement directly in the process or extractive using a measurement gas cell (option)
  • Designed for heavy-duty industrial applications
  • Compact design and easy to operate
  • Long-term stability
  • No moving parts


Spare parts


Service & Support

Technical overview

  • TRANSIC100LP system

    TRANSIC100LP system

    Measured valuesO2
    Measurement principlesDiode laser spectroscopy (TDLS)
    Measuring ranges
    O20 ... 5 Vol.-% / 0 ... 100 Vol.-%
    Response time (t90)
    ≤ 10 s
    ≤ 0.2 Vol.-%
    Zero point drift
    ± 0.1 Vol.-%: per year
    Process temperature
    –20 °C ... +80 °C
    Process pressure
    800 hPa ... 1,400 hPa
    Ambient temperature
    –20 °C ... +60 °C
    Storage temperature
    –30 °C ... +80 °C
    IECExSender/receiver unit: Ex op is / ib IIB T4 Ga/Gb; Ex ib tb op is IIIC T85°C Db
    TSA151 connecting unit: Ex eb mb [ib] IIB T4 Gb; Ex tb [ib] IIIC T85°C Db
    ATEXSender/receiver unit: II 1/2 G Ex op is / ib IIB T4 Ga/Gb; II 2 D Ex ib tb op is IIIC T85°C Db
    TSA151 connecting unit: II 2 G Ex eb mb [ib] IIB T4 Gb; II 2 D Ex tb [ib] IIIC T85°C Db
    NEC/CEC (US/CA)Sender/receiver unit: Class I, Division 2, Group A, B, C and D; T4 Ta=-20°C to +60°C; IP66
    Measuring probe: Class I, Division 1, Group A, B, C and D; T4 Ta= –20°C to +80°C; IP66
    Electrical safetyCE, FM
    Enclosure rating
    Analog outputs

    1 output active:
    0/4 ... 20 mA, 500 Ω

    1 output active:
    0/4 ... 20 mA, 200 Ω
    Only for ATEX/IECEx version TRANSIC151LP

    Digital outputs

    1 relay contact:
    30 V AC, 1 A / 60 V DC, 0.5 A

    1 NAMUR output:
    Only for ATEX/IECEx version TRANSIC151LP

    Serial✔ , ✔
    RemarkNot for the ATEX/IECEx version
    Type of fieldbus integrationRS-232
    FunctionProprietary service interface
    RemarkNot approved for Ex-applications
    FunctionProprietary service interface
    Dimensions (W x H x D)
    Dimensions may vary. For details, see the dimensional drawings.
    2.2 kg
    Material in contact with mediaStainless steel 1.4404 (AISI 316L), Kalrez®, EPDM, PTFE, SiN, MgF2, polymer coating

    Flange for direct installation in the process

    Wall-mounting bracket for ambient air measurement

    Wall-mounting bracket for measurement with measuring gas cell

    Power supply
    Voltage24 V DC, ± 10 %
    TRANSIC151LP 21.6 V DC ... 26.4 V DC, ± 10 %
    VoltageFor ATEX/IECEx version via TSA151 connecting unit, a PELV power supply is mandatory
    Current consumption≤ 500 mA
    Power consumption≤ 6 W
    TRANSIC151LP: ≤ 5.2 W
    Corrective functionsAdjustment with ambient air or test gases
    Test functionsContamination check
All technical data can be found accompanying the individual product