3-1
6712 Sampler
Section 3 Reference
3.1 Replacing the Pump Tube
Replace the pump tube only with Teledyne
Isco’s 6712 pump tubing.
Other types of
pump tubes will not work.
The 6712 pump
tube is easily recognized by the blue alignment
collars. Also note that the discharge tube is not
the same as tubing as the pump tube.
Double-check these to ensure the correct tubing
is used.
Inspect the pump tube periodically. Replace the
tube when it cracks or seems worn. Inspect the
tube frequently when the sample liquid
contains a high percentage of suspended or
abrasive solids.
3.1.1 Pump Tube Warning
The sampler tracks the pump counts in both
the forward and reverse cycles with a resettable
counter. When the count reaches 1,000,000 (or
the count you enter), the sampler displays the
message “Warning! Replace Pump Tube.” The
message appears each time you turn on the
sampler or run a program until you reset the
counter.
Summary of Contents for 6712
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