PerkinElmer PTP-1, User Manual

Page: 39 / 54

Operation . 39
• Due to their principles of operation, Peltier elements require effective heat dissipation
on their “warm” side. In the PTP’s cell holders this is achieved through the heatsink,
where a stream of water must flow (at least 200 ml/min), if overheating of the cell
holder is to be avoided. A security switch is present which will switch off the
heating/cooling program as the temperature in the heat sink reaches 70
o
C.
Switching the PTP on
The PTP is turned on using the power switch at the rear of the machine. Initially, the Upper
display shows the firmware revision and the Lower display shows the release date
(month/year). The cell holder must be installed before switching the unit on.