Welker ESSENTIALS AD681BK, Installation, Operation And Maintenance Manual

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Installing the Sample Cylinder
A Welker SC Single Cavity Cylinder is recommended for use with this unit.
9. Ensure that the inlet and outlet valves on the sample cylinder are closed.
10. Install the inlet valve of the sample cylinder to the sample outlet on the Essentials™ Gas Sampler ( Figure 1 or Figure 2 ).
11. Installation is now complete.
2.4 Start-Up Procedures
1. Ensure that all valves on the Essentials™ Gas Sampler and sample cylinder are closed.
2. Pressurize the pipeline.
Testing the Essentials™ Gas Sampler
3. Open product inlet valve A on the sample probe ( Figure 1 or Figure 2 ). Check for leaks and repair as necessary.
4. Verify that the outlet pressure gauge reads zero (0) psig ( Figure 1 or Figure 2 ). This reading indicates that the inline relief
is holding and that sample cannot flow to the sample cylinder. If the inline relief does not need to be adjusted,
continue to step 5. If the inline relief requires adjustment, proceed to Section 3.3, Adjusting the Inline Relief .
The inline relief comes factory-set to 1100 psig. The inline relief should not require adjustment unless pipeline pressure drops
below 400 psig or maintenance is performed on the inline relief.
When sampling into a Welker SC Single Cavity Cylinder, the pressure gauge should read 0 psig at start-up.
5. Verify the setting of the regulator. The regulator should be set to approximately 50 psig.
6. Open purge valve B and the inlet valve on the sample cylinder ( Figure 1 or Figure 2 ). Check for leaks and repair as
necessary.
7. Close purge valve B and the inlet valve on the sample cylinder ( Figure 1 or Figure 2 ).
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IOM-222 MODEL: ESSENTIALS™ GAS SAMPLER REV: A 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department 281.491.2331