Applied Biosystems 7900HT Fast Real-Time PCR System and SDS ...

7900HT InstrumentInterchangeableThermal CyclerBlocksThe 7900HT instrument features a Peltier-based, interchangeable sample blockmodule based on the technology established in the GeneAmp ® PCR System 9700thermal cycler. The sample block module houses an internal Peltier heating/coolingunit (Figure 1-4). The sample block module is made of aluminum to provide anoptimal thermal transfer rate between the block and the optical plate or theTaqMan ® Low Density Array.PHYSICAL INJURY HAZARD. Hot Surface. Use care whenworking around this area to avoid being burned by hot components.Connection to the instrument(Do Not Touch)WarningGR2027Circuitry(Do Not Touch)GR2028GR2028Block insideinstrumentSample block(Do Not Touch)Top viewHeat sinks(Do Not Touch)Bottom viewFigure 1-4Components of the Interchangeable Thermal Cycler BlockThe interchangeable sample block module provides:• Wide temperature range: 4–99.9 °C• Accuracy: ±0.25 °C from 35–99.9 °C• Heat/cool rate: 1.5 °C per second• Temperature uniformity: ±0.5 °C (measured 30 sec after the clock starts)• Long-term stability and high reliability• Support for multiple consumable formats (see page 1-9)• Several different modes of operation including 9600 mode and programmabletemperature ramps (see page 3-21)• Reduced instrument downtime by allowing immediate replacement of the block(see page 7-6)• Easy access to the sample block for troubleshooting and maintenance(see page 7-6)Optics SystemIMPORTANT! Do not remove the cover to the 7900HT instrument. Only a qualifiedApplied Biosystems service engineer may repair or adjust the internal components.Applied Biosystems 7900HT Fast Real-Time PCR System and SDS Enterprise Database User Guide 1-5DRAFTSeptember 1, 2004 11:38 am, CH_Overview.fm