FLK Gas Sampling System - MPIP - Free

SQ255 Control Unit
3. Operation
3.1 General information
This equipment unit has been supplied functionally tested. Therefore, no complicated checks of the separately installed
devices are needed.
3.2 Start-up
Warning!
The control cabinet in conjunction with the rest of the unit must only be put into operation by
qualified personnel, who are familiar with all maintenance measures.
Unauthorized operation and improperly carried out start-up procedures can cause damage.
The start-up is mainly restricted to a check of the wiring, a functional check and a leakage test of the complete
measuring equipment.
3.2.1 Electrical start-up
After checking the wiring to the heat exchanger, valve box, analyzer cabinet and control station, the following
functional checks can be carried out.
• Check that all external units such as heat exchanger and analyzer cabinet switched off.
• Check that the area around the FLK sampling probe, including the traverse path, is closed off and provided with
warning signs about the high temperature (up to 250° C) of the probe, coolant pipe and cooler as well as the
automatic traversing.
• Turn on main switch (S1), Circuit breaker (FA1) for heat exchanger, motor protection switch (Q1).
• Turn on main switch (S2), Circuit breaker (F1/F2/F3).
• Check that all external units powered up, also OP3 and SIMATIC S7 energized.
4. Maintenance
The control cabinet is maintenance free.
Copyright ® SIEMENS Page 91 04/04