30VORTEK Doc.# VT5 OM 050499, Rel. 2.1
Proper procedure for the cleaning of VorTek Airflow Measuring Probes
The Tek-Air Systems, Inc. VorTek Airflow Measuring Probe is a very versatile flow
measuring station that is used in many types of applications. Some of these ap-
plications include use in harsh environments such as pharmaceutical pill coating
areas, dirty exhaust systems, etc. In some instances the VorTek flow stations
may become fouled and require some careful cleaning to insure their long-term
operation. These cleaning tips and concerns are detailed below:
1) The VorTek probe(s) must first be carefully removed from the ductwork noting
the orientation of the sensors.
a) VorTek VT-2000 (Small Duct) - The transmitter is attached to the probe bar
with flexible hose which can not be disassembled and must be removed as a
complete unit.
b) VorTek S (Standard) - The probe bar(s) may be disconnected from the trans-
mitter simply by pulling off the connector from the microphone board, and undo-
ing the romex connection on the enclosure.
2) The probes then can be evaluated as to the extent of fouling buildup and the
composition of the buildup.
a) Buildup of the non-hardening type, such as dust and fiber collection, can be
simply blown off using compressed air.
Note: EXTREME CAUTION MUST BE USED WHEN CLEANING WITH COM-
PRESSED AIR. THIS INCLUDES MAKING SURE THAT THE FULL PRESSURE
OF THE AIR (NOT TO EXCEED 20 PSI) IS NEVER DIRECTLY AIMED IN THE
BACK OF THE SENSOR IN THE SMALL SENSOR TUBES AS THIS CAN DAM-
AGE THE PROBE.
b) Buildup including both the hardening and non-hardening type can be cleaned
by first removing as much as possible with compressed air. The remaining
buildup may be removed with combinations of alcohol, compressed air, and pos-
sibly the use of a lint free cloth. When “wiping” with a cloth, caution must be
taken so as not to push any fouling agent into the sensing tubes located at the
back of the sensors. If these holes are plugged to any extent, improper readings
will be observed.
Water is not usually recommended for cleaning VorTek probes due to the fact
that the sensor tubes may become entrained with fluid and block the sensor.
Appendices Appendix B
B-1
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