Welker INLOOP ACE - Purging the Unit

2.5 Purging the Unit
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Welker recommends the Welker PNPPlug & Purge Panel for use with this unit.
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To prevent cross-contamination between samples, Welker recommends that the inLoop™ ACE be evacuated, or purged,
following each sample batch to inject all sampled product remaining in the unit into the sample container.
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1. If the inLoop™ ACE is not equipped with the optional purge, Welker recommends installing a customer-supplied tee
fitting with valve(s) to the sample outlet so that the inLoop™ ACE can be purged (Figure 10).
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Figure 10: Recommended Arrangement for Purge
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2.
Ensure that the Welker PNPPlug &Purge Panel has been installed correctly. Refer to the Installation, Operation, and
Maintenance (IOM) Manual for the PNP for installation instructions.
3.
Using ¼" tubing, connect from the purge outlet on the PNP to purge valve B (Figure 10).
4.
Ensure that an appropriate inert gas supply is connected to the PNP. As necessary, refer to the Installation, Operation,
and Maintenance (IOM) Manual for the PNP for instructions.
5.
If applicable, ensure that the PNPpressure transmitter has been configured. As necessary, refer to the Installation,
Operation, and Maintenance (IOM) Manual for the PNP for instructions.
6.
Set the purge pressure to a pressure appropriate for the sampling system. Refer to the Installation, Operation, and
Maintenance (IOM) Manual for the PNP for instructions.
7.
Open purge valve B (Figure 10).
8.
Follow the instructions in the Installation, Operation, and Maintenance (IOM) Manual for the PNPto complete the purge.
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IOM-224 MODEL: INLOOP™ ACE REV: A 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department 281.491.2331