Detectors with different measurement principles for a wide range of process and emission monitoring applications

Up to five measurement components per gas analyzer

Suitable for measuring flammable gases

Automatic calibration, including pump and valve control

Simplified calibration using air or integrated calibration unit, no test cylinders required

Customizable analog outputs, digital inputs and outputs

Modbus interface

Built-in air inlet (optional)

Simple menu-driven operator interface

Clear text status messages

Configuration of rarely needed functions using the included configuration program

Housing version for 19-inch rack mounting (3 height units, IP20)

Modular design for easy maintenance

Self-monitoring function indicates when maintenance is required

Measurement technology (analyzers)

The following analyzers are available as options:

– Uras26 infrared photometer for measurement of infrared reactive gas components such as CO, NO, SO2. etc.

– Magnos206 Oxygen analyzer for measurement of O2 or N2

– Caldos27 Thermal conductivity analyzer for measuring binary gas mixtures with different thermal conductivities. Measurement of binary gas mixtures with different thermal conductivities.

e.g. Ar in O2 , H2 in Ar, CH4 in CH4 N2

– Electrochemical oxygen sensors for O2 measurement

Electrochemical oxygen sensors can only be used in combination with the Uras26 infrared photometer. Electrochemical oxygen sensors can only be used in combination with the Uras26 infrared photometer.

Magnos206 Oxygen Analyzer and Caldos27 Thermal Conductivity Analyzer can also be used. Can also be used in www.abb-drive.com conjunction with the Uras26 Infrared Photometer.

Integral air inlet

The integral air inlet (option) is available in two versions. It includes

– Microfilter and flow sensor module

– or microfilter, solenoid valve, pump, coarse filter, capillary tube and flow sensor module.

Electrical interface

Electrical interfaces for outputting measured values and communicating with external systems include Electrical interfaces for communicating with external systems include:

– Integrated Ethernet-10/100BASE-T interface (for service and configuration and configuration) Integrated Ethernet-10/100BASE-T interface (for service and configuration purposes) Functional range and ordering

– Analog output module with 2 analog outputs,

– Analog output module with 2 analog outputs, digital input/output module with 4 digital inputs and 4 digital outputs and

Digital input/output module with 4 digital inputs and 4 digital outputs and

– Modbus modules with RS485 and RS232 interfaces.

Housing design

The EL3020 Gas Analyzer is designed in a 19-inch housing with 3 height units and IP20 protection.

Description of Analyzer Performance Characteristics

The performance characteristics of the analyzers are defined according to the international standard IEC 1207-1:1994 “Performance statements for gas analyzers”.

They are based on N2 as a companion gas. When measuring other gas mixtures, compliance with these characteristics can only be ensured if their composition is known.

Measurement principle

Non-dispersive infrared absorption photometers in the λ = 2.5-8 µm wavelength range can measure up to 4 compositions using 1 or 2 beam paths and 1 or 2 receivers per beam path in one gas path or two independent gas paths.

Measure up to 4 components in one gas path or two independent gas paths with 1 or 2 receivers per beam path.

Impact Effects

Flow rate effects

Flow rates in the range of 20-100 liters/hour: within the detection range

Correlated gas effects/cross sensitivity

Analyzer configuration must be aware of sample gas composition.

Selective measures to reduce associated gas effects (optional): Installation of interference filters or filter units, internal electronic cross-sensitivity correction of one sample component by other sample components measured by the gas analyzer.

Temperature effects

Ambient temperature within the permissible range – At zero point: ≤ 2 % of range per 10 °C – At sensitivity without thermostat:

≤ 3 % of the measured value per 10 °C – Sensitivity with thermostat (optional):

Sensitivity with thermostat (optional): ≤ 2 % of measured value per 10 °C

Thermostat temperature = 55 °C

Barometric influences – At zero point: No influence – Sensitivity during pressure correction by means of integral pressure sensor

Per 1 % barometric pressure change: ≤ 0.2 % of measured value

Barometric pressure variation

If a hose is used for the internal gas line, the pressure sensor is located in the sampling gas line.

If a hose is used for the internal gas line, the pressure sensor is routed externally through the hose.

Operating range of the pressure sensor: pabs = 600-1250 hPa

Power supply influences

Voltage and frequency within the permissible range: no effect