FLK Gas Sampling System - MPIP - Free

Siemens
SQ253 Valve Combination
Contents Page Page
1. Introduction.......................................................... 59
1.1 General information ............................................ 59
1.2 Personnel qualification requirements ................ 59
1.3 Field of application .............................................. 60
1.4 Construction......................................................... 60
1.5 Mode of operation................................................ 62
1.6 Technical data ...................................................... 63
2. Installation............................................................ 64
2.1 General information ............................................ 64
2.2 Mounting on the withdrawal device................... 64
2.2.1 Hose connections to the withdrawal
mechanism..................................................................... 64
2.2.2 Cable connection to the withdrawal
device ............................................................................. 65
2.3 Compressed air/measuring gas
connection/ ext. cable
connection ............................................................. 65
3. Operation.............................................................. 66
3.1 General information ............................................ 66
3.2 Start-up................................................................. 66
3.2.1 Electrical start-up ................................................ 66
3.2.2 Compressed air and leakage test ........................ 66
4. Maintenance ......................................................... 67
4.1 General information ......................................... 67
4.2 Compressed air filter ........................................ 67
4.3 Compressed-air solenoid valves....................... 68
4.3.1 Replacing the valves.......................................... 69
4.3.2 Cleaning the valve ............................................. 69
4.3.3 Faults:................................................................. 69
4.4 Condensate separator ....................................... 69
4.5 Four-way ball valve........................................... 71
4.5.1 Removing the 4-way ball valve ........................ 71
4.5.1.1 Checking and setting the limit switches:......... 70
4.6 Low-pressure pressure switch.......................... 71
4.7 Electrically operated compressed air
valve (option) ................................................................ 71
4.7.1 Replacing the valve ........................................... 71
4.7.2 Cleaning a valve: ............................................... 71
4.7.3 Faults:................................................................. 71
4.8 Pneumatically operated compressed air
valve (option) ................................................................ 72
4.8.1 Replacing the valve ........................................... 72
4.8.2 Cleaning the valve:............................................ 72
Note:
We would like to point out that the content of this operating manual is not part of an earlier or existing agreement, consent, or
a legal relationship nor should it be modified. All obligations on the part of SIEMENS can be taken from the relevant
purchasing agreement which also contains the complete and solely valid warranty. These warranty provisions are neither
extended nor restricted by this operating manual.
We would also like to point out that for reasons of clarity not every conceivable problem situation in conjunction with the
application of this product could be described in this operating manual. If you require further information or if particular
problems occur which have not been dealt with in enough detail in the operating manual, you can request the required
information via the local SIEMENS subsidiary.
In the operating manual and in the warning information on the product, signal terms having the following meaning have been
used:
Danger as used in this operating manual and in warning information on the product itself means that death, severe injury and
/ or substantial material damage will occur if the appropriate precautions are not taken.
Warning as used in this operating manual and in warning information on the product itself means that death, severe injury
and / or substantial material damage can occur if the appropriate precautions are not taken.
Caution as used in this operating manual and in warning information on the product itself means that slight injury and / or
material damage can occur if the appropriate precautions are not taken.
Note as used in this operating manual denotes an important item of information about the product or a relevant part of the
operating manual requiring particular attention.
Copyright ® SIEMENS Page 58 04/04