Wi.Tec Product Overview

List of measurement ranges

INFRA.sens® NDIR ULTRA.sens® NDUV UVRAS
Messbereich * CO2 CO CH4 CnHm N2O SO2 NO2 O3 CL2 H2S NO
100 Vol.-%
50 Vol.-%
30 Vol.-%
20 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

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

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 / ** The measurement of NO needs a lot of explanation.

INFRA.sens®

General information about the INFRA.sens®

The INFRA.sens® was specially developed for high-quality NDIR gas analysis. In the design phase, special emphasis was placed on high stability and a low detection limit. With the use of high-performance light emitting diodes (IR-LED) and thermal micro radiators, which were adapted to the needs of gas measurement technology, these goals were achieved in full. In the spectral range from 2 μm to 12 μm, carbon dioxide, carbon monoxide, hydrocarbons and nitrous oxide can be reliably detected up to the ppm range with this new 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: aluminium/gold 
  • Fast response time, t90 ≈ 3 s
  • High dynamic range, 1:100
  • Robust, dismountable construction due to gas-tight O-ring connections 
  • Temperature range 5°C – 45°C
  • Low power consumption < 10 Watt
  • RS 232, CAN, analog output (0-10 V) as option
  • Connection of 2 optical measuring systems to one basic electronic unit 
INFRA.sens® AK5 Gassensor


INFRA.sens® AK5

  • < 100 Vol.%
  • Measuring accuracy: ±2 % F.S.
  • Sensor sample cell: aluminium/gold 
  • Fast response time, t90 ≈ 3 s
  • High dynamic range, 1:100
  • Robust, dismountable construction due to gas-tight O-ring connections 
  • Temperature range 5°C – 45°C
  • Low power consumption < 10 Watt
  • RS 232, CAN, analog output (0-10 V) as option
  • Connection of 2 optical measuring systems to one basic electronic unit 
INFRA.sens® AK50 Gassensor


INFRA.sens® AK50

  • < 20 Vol.%
  • Measuring accuracy: ±2 % F.S.
  • Sensor sample cell: aluminium/gold 
  • Fast response time, t90 ≈ 3 s
  • High dynamic range, 1:100
  • Robust, dismountable construction due to gas-tight O-ring connections 
  • Temperature range 5°C – 45°C
  • Low power consumption < 10 Watt
  • RS 232, CAN, analog output (0-10 V) as option
  • Connection of 2 optical measuring systems to one basic electronic unit 
INFRA.sens® AK100 Gassensor


INFRA.sens® AK100

  • < 1 Vol.%
  • Measuring accuracy: ±2 % F.S.
  • Sensor sample cell: aluminium/gold 
  • Fast response time, t90 ≈ 3 s
  • High dynamic range, 1:100
  • Robust, dismountable construction due to gas-tight O-ring connections 
  • Temperature range 5°C – 45°C
  • Low power consumption < 10 Watt
  • RS 232, CAN, analog output (0-10 V) as option
  • Connection of 2 optical measuring systems to one basic electronic unit 
INFRA.sens® AK250 Gassensor


INFRA.sens® AK250

  • < 2000ppm
  • Measuring accuracy: ±2 % F.S.
  • Sensor sample cell: aluminium/gold 
  • Fast response time, t90 ≈ 3 s
  • High dynamic range, 1:100
  • Robust, dismountable construction due to gas-tight O-ring connections 
  • Temperature range 5°C – 45°C
  • Low power consumption < 10 Watt
  • RS 232, CAN, analog output (0-10 V) as option
  • Connection of 2 optical measuring systems to one basic electronic unit 

ULTRA.sens®

General information about the ULTRA.sens®

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 
ULTRA.sens® AK25 Gassensor


ULTRA.sens® AK25

  • < 10 Vol.%
  • für korrosive Gase
  • 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 
ULTRA.sens® AK100 Gassensor UV


ULTRA.sens® AK100

  • < 1 Vol.%
  • 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 
ULTRA.sens® AK250 Gassensor UV


ULTRA.sens® AK250

  • < 1000ppm
  • 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 
ULTRA.sens® AK550 Gassensor UV


ULTRA.sens® AK550

  • < 250ppm
  • 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 


ULTRA.sens® UVRAS

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

Options


O2.sens
(Oxygen sensor)

  • Measuring range:: 0-100 Vol.-%, 0-25 Vol.-%
  • Response time (t90): 15 s; (5 s als automotive Version)
  • Service life: approx. 5 years
  • Electrochemical sensor


P.sens
(Pressure sensor)

  • Meas. range: 800-1.200 mbar
  • Resolution: 1 mbar
  • Response time (t90): 1 s
  • Pressure compensation of the gas measured values
  • Optional: stainless steel version
Feuchtesensor


HUMI.sens®
(Humidity sensor)

  • Measuring range: 0-100 % RH
  • Resolution: ±1 % RH
  • Response time (t90): 12 s
  • Absolute Humidity in g/m3
  • I2C protocol
  • Polymer humidity sensor


KOMBI.sens®

  • Combination of IR and UV technology
  • Up to 3 gases + O2
  • High precision
  • Cross allocation among each other possible
  • Space-saving construction

Accessories

Thermostat heating module

  • Temperature controller 30-55°C
  • Control accuracy ± 0,2 K
  • 12 Watt heating power
  • 30 Watt with external heating element

Thermobox

  • For thermal insulation
  • Temperature controlled up to 55 °C
  • Optionally ULTRA.sens® or INFRA.sens®
  • With dust filter
  • Temperature range 5°C - 45°C

Analogboard

  • 0-10 V; 0-5 V; 0-2 V
  • 16 bit resolution
  • 1 second Update rate
  • 4 parallel signal outputs

MARS Tool

  • PC evaluation software
  • Measurement data logging
  • Calibration / adjustment
  • Save and load sensor parameters