5800 Refrigerated Sampler Service Guide - Isco
5800 Refrigerated Sampler Service Guide - Isco
5800 Refrigerated Sampler Service Guide - Isco
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<strong>5800</strong> <strong>Refrigerated</strong> <strong>Sampler</strong> <strong>Service</strong> <strong>Guide</strong><br />
Section 5 Electrical Troubleshooting and Diagnostics<br />
5.1.7 Test Flow Meter Port The TEST FLOWMETER PORT diagnostic tests the sampler’s<br />
ability to send event marks, and receive an enable pin signal and<br />
flow pacing pulses.<br />
Note<br />
This diagnostic routine is not for field use. This test requires a<br />
test plug which is inserted into the External Device connector.<br />
If you have checked all the connections with the external flow<br />
meter and still suspect a fault with the event mark or flow pacing<br />
signals, contact your authorized <strong>Isco</strong> service facility or the<br />
Teledyne <strong>Isco</strong> factory. They will be able to assist you with<br />
obtaining a test plug or making the necessary jumper connections<br />
to run the test.<br />
SELECT DIAG: ()<br />
TEST FLOWMETER PORT<br />
INSTALL TEST PLUG<br />
PRESS WHEN READY!<br />
FLOWMETER PORT TEST:<br />
...TESTING<br />
To run the test:<br />
1. Select the TEST FLOWMETER PORT option and press<br />
Enter.<br />
2. Insert a Flow Meter Port Test Plug into the Flow Meter<br />
connector.<br />
3. The sampler tests the send and receive circuits for the<br />
event marks, sampler enable pin (inhibit), and flow pulses.<br />
If the sampler displays FAILED: EM->FP or FAILED: INHIBIT,<br />
verify that test plug is correctly inserted. Then, perform the<br />
TEST FLOWMETER PORT diagnostic again from step 1. If the<br />
test still fails, contact your authorized <strong>Isco</strong> service facility or the<br />
Teledyne <strong>Isco</strong> factory.<br />
5.1.8 Refrig Temperature The REFRIG TEMPERATURE diagnostic displays the temperature<br />
of the refrigerated compartment. When this test is started,<br />
the sampler should display the temperature until you press the<br />
Stop or Enter button. There is no pass or fail. This test simply<br />
provides continuous temperature monitoring.<br />
If the screen displays an asterisk (*) or inaccurate temperature<br />
reading, the temperature sensor cable may be malfunctioning.<br />
See Section 3.3.1 for replacement procedures.<br />
SELECT DIAG: ()<br />
REFRIG TEMPERATURE<br />
REFRIG TEMPERATURE:<br />
AIR=__C EVAP=__C<br />
To display the refrigerator temperature:<br />
1. Select the REFRIG TEMPERATURE option and press Enter.<br />
2. The display shows the temperature until you press the<br />
Stop or Enter button.<br />
5-6
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