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6712SR Refrigerated Sampler
Section 8 Maintenance
8-5
8.4.2 Pump Tube Alarm The sampler tracks the pump counts in both the forward and
reverse cycles with a resettable counter. When the counter
reaches the default count of 1,000,000 or the count you have
entered, the sampler displays a message, “WARNING!
REPLACE PUMP TUBE.” The message appears each time you
turn the sampler on or run a program until you reset the counter.
After replacing the pump tube (see page 8-8), reset the count to
zero so the sampler can begin tallying the pump counts for the
new tube. Replacing the pump tube does not reset the counter.
Experience may suggest a significantly different pump tube life.
You can change the alarm count to represent the pump tube life
for your application. The example below shows how to set the
alarm count and reset the pump counts.
5
SET CLOCK
PUMP TUBE ALARM
INTERNAL BATTERY
DIAGNOSTICS
Press STOP to return to the main
menu.
Table 8-1 Setting the Clock and Calendar (Continued)
Table 8-2 Resetting the Pump Counter
1
RUN
PROGRAM
VIEW REPORT
OTHER FUNCTIONS
Select OTHER FUNCTIONS.
2
MAINTENANCE
MANUAL FUNCTIONS
PROGRAMMING STYLE
HARDWARE
Select MAINTENANCE.
3
SET CLOCK
PUMP TUBE ALARM
INTERNAL BATTERY
DIAGNOSTICS
Select PUMP TUBE ALARM.
4
1024000 PUMP COUNTS,
WARNING AT 1000000
The sampler displays this screen briefly to give you the current pump-count
information. The first line shows you the pump counts tallied since the
counter was last reset. The second line shows the current alarm setting.
5
1024000 PUMP COUNTS,
RESET PUMP COUNTER?
YES NO
To reset the counter to zero, select YES. Always reset the counter after
replacing a pump tube. Select NO when merely checking the current count.
6
WARNING AT 1000000
PUMP COUNTS
(1 - 99)00000)
If necessary, change the pump-count alarm setting by typing the first two
digits of the new setting. The sampler accepts entries between 1 and 99. For
example, to increase the count to 1,500,000, enter 15.
7
SET CLOCK
PUMP TUBE ALARM
INTERNAL BATTERY
DIAGNOSTICS
Press STOP to return to the main menu.