Do AO2020 and AO2040 measure different gases?
The designation mainly distinguishes the mechanical construction. The installed modules and their configuration determine the measurement.
ABB · Analytical measurement
ABB AO2000 · Advance Optima
A modular platform that builds the measurement around the process composition.
One platform, multiple measurement principles
Advance Optima AO2000 combines analytical modules with shared management. The AO2020 19-inch rack and AO2040 wall-mounted versions identify the system construction, not the gas being measured.
| Module | Principle | Example application |
|---|---|---|
| Uras26 | Non-dispersive infrared · NDIR | CO, CO₂ and other IR-active components |
| Limas21 UV / HW | UV photometry / hot-wet version | Selected components for process and flue-gas treatment |
| Magnos28 | Paramagnetic | Oxygen |
| Caldos25 / Caldos27 | Thermal conductivity | Composition of defined mixtures |
| Fidas24 | Flame ionisation · FID | Hydrocarbons |
| LS25 | TDLS laser | In-situ measurement in compatible configurations |
When to choose AO2000
- Different techniques need to be combined in a coordinated analytical system.
- Future expansion of the configuration is useful.
- The measurement requires assessment of interactions between components.
What to define in the specification
Specify the module, measured components, ranges, wetted materials, calibration gases and interfaces separately. For replacement, AO2020 or AO2040 alone is insufficient: provide the serial number, module configuration and sample data.
For flammable mixtures, check the specific system version and permitted gas conditions as well as the installation area classification.
ABB documentation
Information for a quotation
To select AO2000, send us the following information, even if preliminary:
- Components to be measured, background gas and expected interferents.
- Normal, minimum and maximum ranges; units and dry or wet basis.
- Pressure and temperature at the sampling point; moisture, dust and condensable components.
- Required response time, number of points and distance from the sampling point.
- Area classification, indoor/outdoor installation, available signals and utilities.
- For replacements: nameplate photographs, module list and existing system documentation.
Frequently asked questions
Is thermal conductivity selective for one gas?
The response depends on the complete mixture. It suits defined mixtures; changes in the background gas must be assessed.