5.2 Purge and inlet vent connection
5.2.1 Standard equipment
NOTICE
Risk of pollution from tracer gas
The leak detector should not be used in an environment with a high concentration of tracer gas. The
tracer gas risks polluting the leak detector.
The manufacturer cannot be held responsible for the product’s pollution with tracer gas.
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Ensure good ventilation in the area where the detector will be used.
NOTICE
Incorrect use of purge
A leak detection operation should be carried out on parts or equipment that contain any trace of sub-
stances that are aggressive, chemical, corrosive, inflammable, reactive, toxic, explosive, or on con-
densable vapors, even in small quantities.
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Do not use the purge to dilute these hazardous products. This is not its purpose.
The detector is equipped with an inlet vent optimizing the detector’s operation.
●
If no inlet vent system is connected, the inlet vent is connected to the ambient air.
●
The inlet vent status (opened or closed) depends on the parameters set by the user (see the
chapter “Inlet vent”).
5.2.2 Connection of a neutral gas line (purge)
It is possible to connect the detector to a neutral gas line (purge) (at the customer’s expense).
The status of the neutral gas line (purge) (open or closed) is managed by the detector and cannot be
configured by the operator.
The use of a neutral gas (nitrogen, for example) allows for the leak detector background to be reduced.
The neutral gas should be different than the tracer gas used.
In addition to the purge, activating the ‘Pollution’ function is recommended (see chapter “Pollution func-
tion”).
WARNING
Risk of injury from contact with pressurized neutral gas
The product uses a pressurized inert gas (e.g. nitrogen) as the purge gas. Installations that do not
comply with or are not configured according to professional standards can endanger the user's life.
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Install a manual valve on the circuit at a distance of 3 m from the product, so that the neutral gas
supply can be locked out.
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Observe the recommended supply pressure.
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Always lock out and disconnect the neutral gas circuit before working on the product.
►
Regularly check the condition of the pipework and supply circuit connections.
NOTICE
Incorrect use of purge
A leak detection operation should be carried out on parts or equipment that contain any trace of sub-
stances that are aggressive, chemical, corrosive, inflammable, reactive, toxic, explosive, or on con-
densable vapors, even in small quantities.
►
Do not use the purge to dilute these hazardous products. This is not its purpose.
Flow
To guarantee best performance, the neutral gas supply must be dry and filtered, with the following char-
acteristics:
Installation
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