Applied Biosystems 7900HT User Manual page 239

Materials
Required
Handling the
Sample Block
Removing the
Sample Block
Applied Biosystems 7900HT Fast Real-Time PCR System and SDS Enterprise Database User Guide
• Replacement Sample Block (if replacing the sample block)
• 5/32 inch hex key (necessary only for certain instruments)
• 5/16 inch hex key (some instruments may require a crescent wrench)
The interchangeable sample blocks are delicate pieces of equipment containing
several fragile components that can break if handled improperly.
the correct locations for handling the interchangeable sample block module.
(Bottom of module)
Figure 7-3 Locations for Handling Sample Block Modules
1. Start the Automation Controller Software, then:
a. Select the Thermal Status tab, then confirm the function of the current
module. The module is operating normally if the software is receiving a
temperature reading.
b. Click
2. Select File > Exit to close the Automation Controller Software.
3. Power off and unplug the 7900HT instrument.
and powered off at all times during the following procedure. Failure to comply
can result in serious physical injury to the user or damage to the instrument.
4. Wait 20 to 30 min for the heated cover to cool.
temperature of the sample block can be as high as 100 °C. Before performing
this procedure, wait until the sample block reaches room temperature.
Circuitry and connections to
the instrument (Do Not Touch)
Heat sinks
Hold sample block
module from the sides
to rotate the instrument tray to the OUT position.
PHYSICAL HAZARD. The instrument must be unplugged
PHYSICAL HAZARD. During instrument operation, the
DRAFT
September 1, 2004 11:39 am, CH_Maintenance.fm
Replacing the Sample Block
Figure 7-3 shows
7-7