Reagent Bay Thermistor Removal and Replacement

Parts and Materials Required

• Proper PPE

• 7 mm nut driver
• Heat sink compound
• SAMPLE/REAGENT BAY, TEMP SENSOR

  

Time Required

• 30 minutes

Removal Procedure

1. Put on proper PPE.
2. Remove the Reagent Bay.

   Wear clean nitrile gloves while performing the following procedures.

3. Place the module upside down on a prepared work surface.
4. Using a 7 mm nut driver, remove the four nuts that secure the foam bottom to the module and remove the foam.

   

5. Locate and remove the thermistor from the cooling bay.

   

6. Disconnect the thermistor connector from the main PCB.

   

Replacement Procedure

Caution—Be careful not to damage the delicate wires when replacing the thermistor.

1. Install the thermistor and plastic guide into the module cooling plate. Assure that there is sufficient heat sink compound to fully coat the thermistor when inserted into the cooling plate.

   

2. Connect the thermistor to the main PCB.

   

3. Reinstall the foam on the underside of the module. Do not over tighten the nuts that retain the foam as they could easily cut through the foam.

   

4. Install the Reagent Bay.

Alignment/Calibration

1. Auto-teach the Reagent Pipettor to the Reagent Bay.

Verification

1. Start up Service Software.
2. Using Service Software, verify that the Reagent Bay temperature is within acceptable range.
3. Using Service Software, open and close the shutter and visually confirm that it operates properly.
4. Scan racks with reagent bottles in all four lanes.
5. Verify the detection of rack presence.