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3700 Portable Samplers
Section 3 Programming Guidelines
display, distributor, and pump; and lets you reinitialize RAM.
The d isp lay information is d iscussed below in order of
appearance.
Software Revision Number – The sampler will display the
software revision number for a short period of time.
Test RAM and ROM – RAM and ROM test messages replaced
the software revision display. A successful test is indicated by the
messages "RAM PASSED TEST" or "ROM PASSED TEST." If
either RAM or ROM fail the test, the sampler displays one of the
following messages: "RAM FAILED TEST" or "ROM FAILED
TEST" and beeps every three seconds until you turn it off. If
either the RAM or ROM fail the test, service the sampler.
Contact Teledyne Isco Customer Service for assistance.
LCD Test – After successful RAM and ROM tests, the sampler
will then test the LCD by first filling the display with solid rect-
angles and then printing the alphabet and other characters.
Each character position in the display should contain a character.
Pump Test – The next step tests the pump. During the test, the
pump will run briefly and the display will indicate an "OFF/ON"
number. The number should fall within the range of 50 to 200. If
the count falls below 50 or exceeds 200, have the pump serviced.
A count near 100 is typical.
Distributor Test – Following the pump test, you can test the
distributor. If you elect to test the distributor, the sampler will
move the distributor to Position 24, then return it to Position 1.
The positions are indicated on the display. If the message, "DIS-
TRIBUTOR JAMMED" is displayed, check the routing of the
pump tubing and the bottles in the tub. If the tubing and bottles
are correctly positioned, the distributor drive mechanism may
need servicing. (Display #370)
Reinitialize Controller – In the final steps you reinitialize the
sampler. If you select "NO," the sampler will return to the con-
figure option list. If you select "YES," the sampler will reset a
number of configuration and program settings, then you can turn
off the sampler. (Display #371)
Table 3-4 lists the reinitialized settings. Not all settings are
reset. Set Clock, Bottle Size, Suction Line, and Sampler ID con-
figure-option settings remain unchanged. This reduces the
number of settings you would need to change if the sampler were
accidently reinitialized. The Pump Count total is not reset to
maintain an accurate count for the Tubing Life Warning.
3.9.21 Exit Configuration
This option allows you to leave the configure sequence and
return to the standby state. There are no input displays. Press
the
/
key to exit the configure sequence. You can
ENTER
PROGRAM
exit the configuration sequence at any time using the
EXIT
key.
PROGRAM
3-53
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