Product Description
DUSTHUNTER T · Operating Instructions · 8012428 V 2.0 · © SICK MAIHAK GmbH Germany 29
2.2.7 Device check accessories
Test equipment for linearity test
A linearity test can serve to check the correct function of transmission measurement (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
DUSTHUNTER T. Compliance 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.
Adjusting holder for scaling
Adjusting holders are available to check transmission measurement in smoke-free
measuring paths (
→
p. 57, §4.2.1) and are fitted with a sender/receiver unit and reflector in
a defined distance from each other and aligned so that the optical axes match (
→
p. 59,
§4.2.2). The transmission value determined is set as 100% and serves as standard for
measurement in the path containing dust.
Zero tube for scaling
The measuring system can also be scaled using a tube with a defined length instead of the
adjusting holder (
→
p. 57, §4.2.1). Assembling and aligning the sender/receiver unit and
reflector in a smoke-free path are then easier and more precise. The zero tube is closed off
with end flaps when not in use so that no dust can penetrate the tube. We especially
recommend this option when a dust-free environment cannot be guaranteed for scaling.
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