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 3 Refrigeration System<br />
4. Tighten the black plastic cord-grip fitting over the bulkhead<br />
fitting.<br />
5. Clean the control panel’s mounting surface on the face of<br />
the refrigerated compartment. This will help ensure that<br />
the gasket will seal the enclosure.<br />
6. Install the ferrite bead 3 /4" from the cable connector. Wrap<br />
the cable one complete turn around the bead and snap it<br />
closed (Figure 3-2).<br />
7. Attach the new cable to P3 on the control board, ensuring<br />
that the connector is oriented correctly.<br />
8. Align the control panel over the mounting holes and secure<br />
it with the mounting screws. Torque screws 1.8 to 2.0 Nm<br />
(16 to 18 in/lbs).<br />
9. Using the two plastic cable ties, mount the black sensor on<br />
the sixth coil of the evaporator as shown in Figure 3-21.<br />
To operate correctly the sensor must be mounted in the<br />
exact position shown.<br />
Note<br />
When installing the black molded sensor,<br />
be careful not to overtighten the cable tie<br />
on the sensor body, as internal damage<br />
could occur. The sensor should be snug<br />
against the coil, but the rubber housing<br />
should not be visibly dented.<br />
10. Gently press the metal sensor into the plastic holder<br />
behind the power supply plate until it snaps into place.<br />
11. Replace the refrigeration module, insulation, rear panel,<br />
and cover brace, as detailed in Section 1.8 Closing the Rear<br />
Compartment.<br />
3.3.2 CPU Temperature<br />
Sensor<br />
3.3.3 Sample Compartment<br />
Thermometer<br />
(optional)<br />
The electronics compartment is protected from moisture condensation<br />
by an internal heater on the main CPU board. If the <strong>5800</strong><br />
has been connected to AC power for at least half an hour, the<br />
temperature within the electronics compartment should be<br />
greater than the ambient temperature.<br />
This temperature is measured by a sensor mounted on the board.<br />
See Section 5.1.9 for instructions on how to view the compartment<br />
temperature readings.<br />
Should there be a need to verify the temperature readings displayed<br />
by the control panel, it is important to read the temperature<br />
as close as possible to the sensor inside the refrigerator.<br />
To verify the temperature without a 24-bottle rack or locating<br />
base, place a thermometer in a container of water in the right<br />
rear corner of the refrigerator. The thermometer should sit in<br />
front of the return air opening to the refrigeration system, but<br />
not obstruct the air flow.<br />
3-7
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