11. Maintenance
11.1 Overview
Inspect the condition of the transmitter, probe body, and probe head periodically.
The probe (includes probe body and head) can be detached and replaced by the user. The
probe head filter (see Figure 5 (page 22)) is also user-replaceable. For other maintenance
requirements, contact Vaisala.
The probe can be detached and changed when HMT370EX is
powered. Any other live maintenance, including changing the probe head filter,
is not allowed.
CAUTION!
11.1.1 Technical support
Contact Vaisala technical support at helpdesk@vaisala.com. Provide at least the
following supporting information as applicable:
• Product name, model, and serial number
• Software/Firmware version
• Name and location of the installation site
• Name and contact information of a technical person who can provide further
information on the problem
For more information, see www.vaisala.com/support.
11.2 Cleaning
You can clean the transmitter, probe, and probe body by wiping with a moist cloth. Standard
cleaning agents can be used.
Avoid exposing the transmitter, probe body, or probe to chemicals for
unnecessarily long periods of time. Do not immerse them in liquid when cleaning,
and wipe chemicals o the surfaces after cleaning.
11.3 Changing probe filter
Replace the probe filter if it is contaminated. New filters are available from Vaisala.
Be careful when changing the filter, since it is easy to break the
sensor when the filter is removed.
CAUTION!
HMT370EX User Guide M212305EN-B
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