158 FLOWSIC100 · Operating Instructions · 8012513/YSA5/V2-1/2016-07 · © SICK Engineering GmbH
Maintenance
Subject to change without notice
5.1 General information
Maintenance strategy
Just like any other electronic measuring system, the FLOWSIC100 requires regular
maintenance. By inspecting the system regularly and replacing wear-and-tear parts in good
time, the service life of the device can be lengthened significantly and ensures
measurements are always reliable.
Even though the FLOWSIC100 is often deployed in harsh environments, its design and
measuring principle are such that the device requires only minimal maintenance.
Maintenance tasks
The maintenance tasks are limited to:
● Sender/receiver unit
● Purge/cooling air unit (only necessary for purged/cooled sender/receiver units)
Before you carry out these maintenance tasks, set the FLOWSIC100 to Maintenance Mode.
This can be done using an external maintenance switch (connected to digital input 1),
using SOPAS ET or via the LC-Display option (
p. 152, 4.4).
Switch the system from "Maintenance" back to "Measuring" after completing the work.
Maintenance intervals
The maintenance intervals are assessed according to the qualification test. The
maintenance interval depends on the specific conditions at the plant, such as operation,
gas composition, temperature and humidity, as well as the ambient conditions and
therefore shorter maintenance intervals may be necessary if conditions are unfavorable.
The activities required and their completion must be documented by the operator in a
Maintenance Manual.
Maintenance agreement
Regular maintenance activities can be carried out by the plant operator. These activities
must be carried out by qualified persons (as described in Chapter 1) only. If desired, SICK
Service or authorized Service support centers can carry out all maintenance work. SICK
offers a range of economical maintenance and repair agreements. As part of these
agreements, SICK assumes responsibility for all maintenance activities, repairs are carried
out by specialists on site (as far as possible).
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