ULTRA.sens® AK550

ULTRA.sens AK550

ULTRA.sens® AK550 Gassensor UV

The ULTRA.sens® is the world’s first OEM gas measurement module based on miniaturized UV LEDs. The stability and lifetime of these UV-LEDs enables high-precision gas analyses down to the ppb range. By using two UV-LEDs 2 gases can be detected simultaneously. With this approach, 2 measuring ranges from ppm to Vol.-% can also be realized.

In the spectral range from 200 nm to 500 nm, nitrogen oxides (NO+NO2), aromatic hydrocarbons, hydrogen sulphide, ozone, sulphur dioxide and chlorine can be reliably detected with this novel sensor platform.

Applications

  • Environmental and Process Measurement Technology (CEM)
  • Engine development
  • TOC analyzers
  • Elemental analysis
  • Industrial gas analysis
  • Natural gas/biogas analysis
  • Process measurement technology
  • Biogas research

Features & Benefits

  • Measuring accuracy: ±2 % F.S.
  • Sensor sample cell: stainless steel with inert coating (inside and outside)
  • PEEK cell for corrosive gases (H2S, chlorine) on request
  • High dynamic range, 1:100
  • Fast response time, t90 < 1 s possible
  • Robust, dismountable construction due to gas-tight O-ring connections
  • No water vapour cross sensitivity as with NDIR gas sensors
  • Temperature range 5°C – 45°C
  • Low power consumption < 3 Watt @ 24 VDC
  • RS 232, CAN, analog output (0-10 V) as option
  • Connection of 2 optical measuring systems to one basic electronic unit

List of measurement ranges

INFRA.sens® NDIR ULTRA.sens® NDUV UVRAS
Measurement range * CO2 CO N2O CH4 CnHm CF4 SF6 H2O O3 CL2 H2S SO2 NO2 NO
100 Vol.-%

Measurement ranges on request
50 Vol.-%

30 Vol.-%

20 Vol.-%

10 Vol.-%

5 Vol.-%

1 Vol.-%

5.000 ppm

2.000 ppm

1.000 ppm

500 ppm

300 ppm

100 ppm

50 ppm

10 ppm

1 ppm

* Full scale value (F.S.)

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).

Analyze up to 4 different gases with one module

Arrangement Sensor 1 (*) Sensor 2 (*) Sensor 3 (*) Options / Addiotional sensors (**)
Single Gas Module 1.1

CO2 CO N2O CH4 CnHm CF4 SF6 H2O

O2 P H
1.2

O3 CL2 H2S NO NO2 SO2

O2 P H
Dual Gas Module 2.1

CO2 CO N2O CH4 CnHm CF4 SF6 H2O

CO2 CO N2O CH4 CnHm CF4 SF6 H2O

O2 P H
2.2

O3 CL2 H2S NO NO2 SO2

O3 CL2 NO2 SO2

O2 P H
2.3

CO2 CO N2O CH4 CnHm CF4 SF6 H2O

O3 CL2 NO2 SO2

O2 P H
Triple Gas Module 3.1

CO2 CO N2O CH4 CnHm CF4 SF6 H2O

CO2 CO N2O CH4 CnHm CF4 SF6 H2O

CO2 CO N2O CH4 CnHm CF4 SF6 H2O

O2 P H
3.2

CO2 CO N2O CH4 CnHm CF4 SF6 H2O

O3 CL2 NO2 SO2

O3 CL2 NO2 SO2

O2 P H
3.3

NO

NO2

SO2

O2 P H

(*) Only one gas selectable per sensor

(**) P = pressure, H = humidity

Subject to alterations.


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