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OPERATING INSTRUCTIONS | DUSTHUNTER SB30
8014551/1COY/3-0/
2016-08| SICK
Subject to change without notice
PRODUCT DESCRIPTION 2
Purge air heater
It is recommended to use an optional purge air heater available for delivery (see “Purge air
supply”, page 69) to prevent condensation in the device or flange tube when the mea-
suring system is operated at gas temperatures close to the dew point or very low ambient
temperatures
Optional non-return valve
When the measuring system is used in applications with overpressure in the duct, it is
possible to protect the sender/receiver unit, external purge air unit and the environment
against the consequences of purge air supply failure by installing a non-return valve on the
purge air connection of the sender/receiver unit (see “Installation of non-return valve”,
page 31).
2.2.6 Test equipment for linearity test
A linearity test can serve to check the correct measurement function (see Service Manual).
In this case, filter glasses with defined transmission values are positioned in the beam
path and the values compared against those measured by the measuring system. Com-
pliance within the allowed tolerance means the measuring system is working correctly. The
filter glasses with holder required for the check are deliverable including a carrying case.
The purge air heater can only be used for purge air supply with an external purge air
unit.
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