94
8024493/AE00/V1-0/2020-09| SICK
O P E R A T I N G I N S T R U C T I O N S | DUSTHUNTER SP100 Ex-2K
Subject to change without notice
12
MAINTENANCE
12.5.3
Non-return valve
Make a visual check of the non-return valve function at each service interval. Clean with
suitable means (e.g. cotton swabs) when necessary. Replace the non-return valve with a
spare part when it no longer functions (
see “Spare parts DUSTHUNTER SP100 Ex-2K”,
) (
see “Exchanging the non-return valve”, page 103
).
12.5.4
Test equipment for linearity test
Measurement linearity can be checked using a linearity test. 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. Compliance within the allowed
tolerance means the measuring system is working correctly. The filter glasses with holder
required for the check are deliverable as a set including documentation and a carrying
case (
see “Device check accessories”, page 127
). The measuring function is checked by
the function check and the linearity test.