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2.5 Purging the Unit
Welker recommends the Welker PNP Plug & Purge Panel for use with this unit.
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.
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).
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.
18
IOM-224
MODEL: INLOOP™ ACE
Figure 10: Recommended Arrangement for Purge
REV: A
13839 West Bellfort Street, Sugar Land, TX 77498
welker.com
Service Department 281.491.2331
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