Ionics Instruments 2004 Page 6-24 DLM 30007-08 Rev. A
level. Observe the small air bubble being drawn into the analyzer and the
liquid flowing out the outlet tubing.
If the air bubble is not drawn into the analyzer or if there is not liquid flowing
out the outlet tubing, the tubing may be collapsed.
To check the tubing:
1. Turn off the main power on the analyzer.
2. Use a 1/4" wrench to remove the Teflon tubing from the bulkhead
fitting.
3. Inspect the tubing in the region of the ferrule. If the ferrule has
compressed the tubing completely closed, cut the tubing and install a
new 1/16" Valco ferrule or replace the tubing. Replacement ferrules
and tubing are available from Ionics Instruments.
Sampling from containers may result in loss of DI water from the internal
reservoir. Check the DI water level frequently and refill the reservoir as
needed. Instructions for checking and refilling the DI reservoir are given in the
Maintenance chapter. It is particularly important that the DI reservoir be
filled before moving the analyzer. An air bubble in the DI loop can become
trapped in the circulation pump during transport, resulting in noisy operation
and potentially damaging the pump.
Changing to or Returning to On-line Measurements
After the Grab Sample measurements have completed, return to on-line
measurements from the RUNTIME menu.
1. Use the arrows ( or ) to scroll to STOP and press ENTER. The
Grab Sample screen is displayed.
2. Use the arrows ( or ) to scroll to EXIT and press ENTER. The
MAIN menu is displayed.
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