ABI Prism® 7900HT Sequence Detection System ... - OpenWetWare

Handling the
Sample Block
Removing the
Sample Block
The interchangeable sample blocks are delicate pieces of equipment containing
several fragile components that can break if handled improperly. The figure below
illustrates the correct locations for handling the interchangeable sample block module.
(Bottom of module)
To remove the sample block:
GR2028
Circuitry and connections to
the instrument (Do Not Touch)
Heat sinks
Hold sample block module from the sides
Step Action
1 Launch the Automation Controller Software and perform the following tasks:
a. Click the Thermal Status tab, and confirm the function of the current module. The
module is operating normally if the software is receiving a temperature reading.
b. Click Open/Close to rotate the instrument tray to the OUT position.
2 From the File menu, select Exit to close the Automation Controller Software.
3 Turn off and unplug the 7900HT instrument.
! WARNING PHYSICAL HAZARD. The instrument must be unplugged and
turned 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 20–30 min for the heated cover to cool.
! CAUTION PHYSICAL HAZARD. During instrument operation, the temperature
ofthesampleblockcanbeashighas100°C. Before performing this procedure,
wait until the sample block reaches room temperature.
5 If the instrument tray is in the OUT position (outside of the instrument), push it into
the instrument to provide an open work space.
6 If using a Zymark Twister Microplate Handler remove the covers for the
fixed-position bar code reader and the underlying platform.
GR2009
7 Push the instrument tray within the instrument, and remove the thermal cycler
access cover to permit access to the sample block.
Note The thermal cycler access cover is secured to the instrument by non-locking
pins and may require force to remove it (no tools are required).
GR2023b
Fixed-position bar code reader
and underlying platform covers
System Maintenance 7-5