Table of Contents
Advertisement
9
Maintenance
9 Maintenance
This section provides guidance to maintain your PILS to keep your system healthy and
producing high quality data.
9.1 Mesh Wick
The mesh wick mounted around the edge of the quartz impactor disk is a critical compo-
nent of the liquid sample collection process. Over time, insoluble material can build up
on the wick causing it to no longer collect sample droplets. In this case, the liquid sam-
ple flow rate can become unstable or decrease to zero. Water accumulation over the face
of the quartz impactor disk is an indication of a liquid collection problem. Discoloration
(greying) of the quartz impactor disk is also an indication that significant insoluble ma-
terial may have accumulated on the wick. Replace the wick under the aforementioned
conditions. A video is available describing how to replace the wick.
9.2 Peristaltic Pump Tubing
Under continuous use, the peristaltic pump tubing should be replaced or moved to the
unused stop position every few months, when an inspection of the tubing reveals stretched,
deformed sections that have been permanently flattened by the rollers. It is advised to
replace ALL of the tubes at the same time. Note that the tubes have two installation po-
sitions (double stop tubing), so used tubing can removed from the white plastic pump
clamps and re-installed so a fresh section of tubing is inside the clamp.
WARNING: Do NOT insert your finger or other foreign object into the peri-
staltic pump rollers or a pinch hazard may result.
Be sure to replace the white tubing clamps so the movable plastic clamp paddles are on
the LEFT side of the pump (closer to the PILS Head) when viewed from the front towards
the chassis front panel.
After replacing the white tubing clamp in the pump, be sure to raise the white plastic
clamp paddle so it points straight up to properly clamp the tube in place.
83-00009-01A
PILS 4001-115V and 4001-230V
Page 61 of 74
Advertisement
Table of Contents
