87
iQue
®
Screener PLUS Hardware Manual: Part Number 11811 Rev A, Maintenance : Clog Prevention and Management
Clog Prevention and Management
Overview
It is important to take steps to avoid clogs. This article explains how to recognize, address and prevent a clog.
Recognizing a Clog
Clogs are often noticed when looking at time data such as the Well Identification time histogram. They usually present
as an interruption of normal sampling sometimes followed by a burst of compressed wells as the clog breaks free.
The other way to recognize a clog is to observe the sample slugs as they travel through the tubing. If the slugs are
not moving at all or if they are moving very erratically, you may have a partial or total clog.
Types of Clogs
Probe and Tubing Clog:
The most common clog exists in the probe and tubing itself rather than in the detector. See
Manual Control Mode
earlier in this section for a technique on isolating and diagnosing a probe and tubing clog. The
simplest way to resolve a probe and tubing clog is to change the probe and tubing. Sometimes a
Probe and Tubing
Clean
will also take care of a partial clog.
Flow Cell Clog:
A much less common clog is one in the flow cell of the detector. These can usually be resolved using
the
Standard Cleaning Procedures
mentioned earlier in this section. Please contact IntelliCyt Technical Support at
support@intellicyt .com
if you suspect a flow cell clog.
