ULTRA.sens® UVRAS

ULTRA.sens® UVRAS

For the detection of NO and H2S an EDL (electrodeless gas discharge lamp) is used. A combination of both technologies (UVRAS & UVLEDs) allows simultaneous gas analysis of NO, NO2 and SO2 in the lower ppm range, which is particularly important in flue gas analysis (CEM)2. 

In the EDL, N2 and O2 are converted to NO and produce selective UV radiation. With this radiation a cross sensitivity free NO measurement is made possible. This method is called UV resonance spectroscopy (UVRAS).

Applications

  • Exhaust gas monitoring (CEM)2
  • Laboratory area
  • Biogas research
  • Industrial gas analysis
  • Engine test benches
  • Portable gas analysis (PEMS)3

Features & Benefits

  • Simultaneous NOx and SO2 analysis
  • Temperature controlled up to 55°C
  • Fast response time < 3 seconds
  • Durable EDL (> 16000h)
  • Flow-independent measurement 0-2L/min
  • No influence of gas humidity
  • No NOx converter required
  • High accuracy
  • Low power consumption
  • Compact size

Analyze up to 4 different gases with one module

Version Line 1 Line 2 Line 3 Line 4 Line 5 * Line 6 * Line 7 *
Single
Gas Module
1.1 CO2 / CO / NO / N2O / CH4 / CnHm  O2 P H
1.2 NO / NO2 / SO2 / H2S / O3 / CL2 O2 P H
Dual
Gas Module
2.1 CO2 / CO / NO / N2O / CH4 / CnHm CO2 / CO / NO / N2O / CH4 / CnHm O2 P H
2.2 NO / NO2 / SO2 / H2S / O3 / CL2 NO2 / SO2 / O3 / CL2 O2 P H
2.3 CO2 / CO / NO / N2O / CH4 / CnHm NO2 / SO2 / O3 / CL2 O2 P H
Triple
Gas Module
3.1 CO2 / CO / NO / N2O / CH4 / CnHm CO2 / CO / NO / N2O / CH4 / CnHm CO2 / CO / NO / N2O / CH4 / CnHm O2 P H
3.2 CO2 / CO / NO / N2O / CH4 / CnHm NO2 / SO2 / O3 / CL2 NO2 / SO2 / O3 / CL2 O2 P H
3.3 NO / NO2 / SO2 O2 P H

* optional

Modular sensor design

In order to be able to adapt gas analyses as flexibly as possible to individual measurement tasks, the individual components designed modularly. This resulted in a »modular system« in which the various photometric components such as detectors, emitters, measuring sample cell, etc. can be exchanged. Aluminium with bright gold coating and passivated stainless steel is used as the standard sample cell material. PEEK (polyetheretherketone) is also available for special applications.

With this sophisticated sensor design, customer-specific applications can also be realized without the need for a completely new development. The modularity makes replacement and maintenance considerably easier when servicing is required. Completely bonded gas sensors, on the other hand, can only be replaced as a complete unit and thus generate high follow-up costs (total cost of ownership) in case of maintenance.

Optionally, the different gas measurement modules can also be equipped with a pressure measurement (P.sens) oxygen measurement (O2.sens) or a humidity measurement (HUMI.sens).

List of measurement ranges

INFRA.sens® NDIR ULTRA.sens® NDUV UVRAS
Measuring range * CO2 CO NO CH4 CnHm N2O SO2 NO2 O3 CL2 H2S NO
100 Vol.-%
30 Vol.-%
10 Vol.-%
5 Vol.-%
1 Vol.-%
5.000 ppm
2.000 ppm
1.000 ppm
500 ppm **
100 ppm
50 ppm
10 ppm

* Full scale value (F.S.) / ** up to 300ppm

1 F.S. - Full scale value / 2 CEM = Continuous Emission Monitoring / 3 PEMS = Portable Emission Monitoring System

Subject to change without notice.

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