How to determine if the plug in a system is in the first detector, the tubing between the detectors, or the second detector - WKB110081

Article number: 110081

OBJECTIVE or GOAL

Determine if the plug in a system is in the first detector, the tubing between the detectors, or the second detector.

While flow is running and pressure is high, disconnect the tubing from the inlet of the first detector.
Check pressure.
If pressure is still high, the plug is before the connection that was just broken. Work backwards down the fluidics path to find it.
If pressure is now low, the plug is after the connection that was just broken. Continue with step 5.
Reconnect the tubing to the inlet of the first detector.
Disconnect the tubing from the outlet of the first detector.
If pressure is still high, the plug is inside the first detector.
If pressure is now low, the plug is after the first detector. Continue with step 9.
Reconnect the tubing to the outlet of the first detector.
Disconnect the tubing from the inlet of the second detector.
If pressure is still high, the plug is in the tubing between the two detectors.
If pressure is now low, the plug is not in the tubing between the two detectors. Continue with step 13.
Reconnect the tubing to the inlet of the first detector.
Disconnect the tubing from the outlet of the first detector.
If pressure is still high, the plug is in the second detector.
If pressure is now low, the plug is after the second detector.
The tubing connected to the outlet of the second detector may be waste tubing, or it may be tubing heading to another component.
If it is waste tubing, replace it.
If it is routed to another component, follow the logic from above to continue the troubleshooting process.