SICK TRANSIC151LP Laser Oxygen Transmitter

SICK TRANSIC151LP Laser Oxygen Transmitter

The TRANSIC151LP is a stationary oxygen transmitter and serves continuous measurement of oxygen in the industrial sector. All operators of the TRANSIC151LP should be specifically trained on this device,knowledgeable of relevant regulations, and able to assess potential hazards related to its operation.

There are 3 variants of the TRANSIC151LP:

1. In-situ measurement

2. Extractive measurement

3. Measurement in ambient air

● The TRANSIC151LP is certified for a process-side operating range from 800 mbar(a) to 1400 mbar(a). Usage with deviating pressures can void the Ex certification.

● The TRANSIC151LP must be operated within the specifications described in the Section

The Ex certification becomes void when the TRANSIC151LP is operated outside the specifications.

● The TRANSIC151LP has not been evaluated regarding the safety function as laid out in 94/9/EC, Annex II, Section 1.5.

The TRANSIC151LP is suitable for the following zones In accordance with ATEX (EN60079-10) and in accordance with IECEx (IEC60079-10)

● Gas:

– Measuring probe: Category 1G EPL Ga (Zone 0)

– Transmitter / voltage supply unit: Category 2G EPL Gb (Zone 1)

● Dust:

– Transmitter / voltage supply unit / measuring probe: Category 2D EPL Db (Zone 21)

The TRANSIC151LP may only be used in zones in which either inflammable or explosive gases in groups I, IIA and IIB or inflammable dust in groups IIIA, IIIB and IIIC are present.

● Temperature class:

– Gas: T4 (max. surface temperature 135°C)

– Dust: T85°C

The TRANSIC151LP functions using light absorption of a tunable diode laser (Tunable Diode Laser Absorption Spectroscopy TDLAS). The gas concentration is measured using the damping of a laser beam sent from a tunable diode laser source in the gas sample. For oxygen measuring, the laser beam wavelength is set to match one of the characteristic absorption lines of oxygen in the wavelength range of around 760 nm in the near infrared range (NIR) of the electromagnetic spectrum. During measurement, the diode laser beam wavelength is continuously modulated to scan across one of the oxygen absorption lines. This generates a periodic signal in a photodetector, the amplitude of which is proportional to the amount of oxygen in the laser beam path.