Safety instructions
3.2 Principle, intended use
Intended use also includes following these operating instructions. In addition to
the following safety information, the safety information of linked system
components must also be observed at all times!
Additional equipment or accessory parts not installed, supplied, or made by
UNION Instruments GmbH require manufacturer's approval by UNION
Instruments GmbH! Any warranty is otherwise voided!
The combustion calorimeter CWD3000 EXP is an analyzer used for determining
the Wobbe index and the gas density of various combustion gases. This analysis
is used for process control. The principle is based on the principle of the dry
calorimeter, where the gas is burned and the heat transferred by mixing it with a
stream of air. The temperature increase of the stream of air, which is proportional
to the energy released, is measured.
The device is based on ignition type “p” – pressurized enclosure. Compressed air
is used as the ignition protection gas.
The calorimeter CWD3000 EXP is intended for use in weather-proof areas and for
fixed mounting to a wall and fixed installation (temperature range: 10°C – 50°C).
The calorimeter CWD3000 EXP is designed for continuous operation – intervention
is not required during operation.
The calorimeter CWD3000 EXP is suitable for operation in hazardous areas and
is intended for use in explosion protection zone 1, group II, category 2G in
accordance with its explosion marking. The CWD3000 EXP is approved as per
Directive 2014/34/EU and the IECEx scheme.
The device is not suitable for the analysis of combustion gas mixtures which are
already ignitable.
The safety provisions applicable at the installation location are to be complied with.
Toxic gas risk assessments are to be carried out by the owner.
3.3 Other applicable operating instructions
The operating instructions of the Gönnheimer pressurized enclosure control unit
F870S are also to be taken into account.
3.4 Additional information
The owner is responsible for supplying the ignition protection gas (compressed air,
class 3). The owner is responsible for supplying electrical voltage. The device is
switched on and off by a control unit. Additional separation from the voltage supply
is to be installed by the owner.
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