Teledyne manual 6712FR Refrigerated Sampler Maintenance

Models: 6712FR

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PLEASE WAIT!

6712FR Refrigerated Sampler Section 8 Maintenance

PLEASE WAIT!

. . . ‘RAM’ PASSED TEST

PLEASE WAIT!

. . . ‘ROM’ PASSED TEST

•If RAM or ROM fails the test, the sampler will report that ‘RAM’ (or ’ROM’) FAILED TEST. Contact Teledyne Isco’s Customer Service for assis- tance.

ABCDEFGHIJKLMNOPQRST ABCDEFGHIJKLMNOPQRST ABCDEFGHIJKLMNOPQRST ABCDEFGHIJKLMNOPQRST

TEST PUMP?

YES NO

PUMPING . . .

PUMPING . . .

ON/OFF RATIO = _.__

PURGING . . .

PURGING . . .

ON/OFF RATIO = _.__

TEST DISTRIBUTOR

YES NO

FINDING ARM FLEXURE

NOW AT BOTTLE __

RE-INITIALIZE?

YES NO

Memory Test – Screens 1 and 2 at left show you the diagnostic tests for the unit’s memory. If either screen shows you a message saying that the memory failed the test, contact Teledyne Isco’s Customer Service.

Display Test – Screen 3 shows you the display test. You should see the test pattern illustrated in the screen. If the pattern does not match the illustration, the display or its circuitry require repair.

Pump Test – Screen 4 lets you start the pump test by selecting YES. As the sampler runs the test, it first runs the pump forward for a short period. Next, it displays an ON/OFF ratio number. After displaying the forward pumping ratio, the sampler reverses the pump to obtain a purge ratio. The acceptable range is between 0.80 and 1.25. If either ratio is outside the acceptable range, the pump requires repair. You do not need to pump liquid while running the test, and you can run the test with or without a tube in the pump.

8-8

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Teledyne manual 6712FR Refrigerated Sampler Maintenance, Please Wait ‘Ram’ Passed Test Please Wait ‘Rom’ Passed Test