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2 SYSTEM SET-UP FOR EVALUATION
2.1 Operation conditions, storage & transport
The instrument must be used within the specified ambient conditions and temperature range. Depending on
information provided by the customer, the factory calibration temperature range might cover a narrower range
adapted to the application and reducing the complexity of the calibration. Please find conditions for operation
and storage in chapter 1.2.1.
Dust or condensing water in the measurement cell leads to signal reduction of the device. It is therefore crucial
to ensure that the measurement gas flow is free of dust and that condensation cannot occur.
The systems are not designed for use in an explosive atmosphere.
Irreversible system damage might occur if the use of adequate and application-specific gas filtration
technology is omitted. This is an optical measurement system. For further information on gas
conditioning and filtering please refer to 2.4.
Relative humidity in the measurement gas and measurement conditions must be such that no
condensation occurs inside the measurement cell.
Each sensing module is calibrated to a certain gas temperature and pressure. Deviations in both
parameters can lead to significant degrading of measurement accuracy.
The LGD Compact module continuously measures the gas concentration in the measurement cell. Default
measurement time is roughly 1 s (user changeable to up to 600 s integration time or "averaging"). The LGD
Compact has a start-up time of 30 s to give a correct concentration reading.
For any shipments of the system it is recommended to retain and re-use the original shipment material, which
has been tested and proven to be effective protection. Relevant Operation & Storage conditions as described
above as well as in the Product Datasheet need to be respected for shipment. In case of a return Axetris AG
will not be responsible for shipping damage as a result of improperly packaged systems and recommends
customers to ship systems insured for full value.
2.2 System dimensions and mounting
Do not open the system. Opening might lead to irreversible damage.
Do not remove the fittings of the measurement cell.
Prevent any dust, insulation or other material from entering the measurement cell.
This chapter describes the dimensions of the sensor module, of the electronics housing and also the printed
circuit boards inside the electronics housing. Further described are the mounting holes of the sensor module.
Axetris AG
LGD Compact Operating & Integration Instructions; Rev. D
13/46
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