Individual or simultaneous measurement of up to three components: NO, NO2, SO2 and H2S

Siemens extends its continuous process gas analytics portfolio with the new SIPROCESS UV600 analyzer providing solutions for an even wider range of applications.  SIPROCESS UV600 is an extractive UV gas analyzer that can
simultaneously measure up to three components. It is a specialist for extremely selective NO measurement with small measuring ranges and an allrounder for other UV-active gases, e.g. NO2, SO2 and H2S.

Due to spectral range no cross sensitivities to CO2 and H2O are expected.  Innovative signal processing as well as highly stable detectors provide excellent long-term stability and compensation of drifts and influencing effects. SIPROCESS UV600 with state of-the-art electronics and software has the interfaces required for remote monitoring from a network as well as connection to process control systems.


Max. number of components



UV-active gases, e.g. NO, NO2, SO2, H2S

Smallest measuring range

Component-specific: 0-10 / 0-1000 ppmv


19“ rack unit (4 HU)


1. Simultaneous measurement of NO and NO2 with subsequent compilation. NO2 converters or CLD analyzers are thus not required. Therefore:

  • Lower maintenance effort (no converter function check)

  • Reduced operating costs because no additional equipment required, e.g. ozone generator, etc.

2. Measurement in the UV range:

  • Measurement not affected by H2O and CO2

  • Very low SO2 and NO measuring ranges possible

3. UV Resonance Absorption Spectrometry (UVRAS):

  • Measurement of very low NO concentrations:  Measuring range 10 ppm

  • Very low cross-sensitivity to other gases

4. Very long service life of UV lamp

5. Low drifts and high stability by:

  • four-channel measuring method and double quotient calculation

6. True reference measurement for drift-free, stable measurement

7. All modules “temperature controlled”; thereby independent of ambient temperature fluctuations

8. Optional adjustment device:

  • Filter wheel with test cells which are swiveled into the optical path for calibration; no test gases are required

  • Adjustment: manual or automatic