Pico TC08 USB THERMOELEMENT DATA LOGGER PP222 Manual Do Utilizador

The USB TC-08 is supplied with driver routines that you can build into your own programs. The USB
TC-08 driver is supported by the following versions of the Windows operating system: 98SE, ME, 2000,
and XP.

Once you have installed the software, the  DRIVERS directory will contain the drivers and a selection of
examples of how to use the drivers.

The driver is supplied as a Windows  DLL. The DLL uses the C  stdcall calling convention and can
be used with C, Delphi and Visual Basic programs. It can also be used with programs like Microsoft
Excel, where the macro language is a form of Visual Basic.

The USB TC-08 is designed for three specific modes of operation to suit a variety of applications. The
following modes are supported:

  

  

  

Streaming mode is an operational mode in which the USB TC-08 unit samples data and returns it to the
computer in an unbroken sequence, using the onboard clock to ensure accurate timing.

The unit can buffer up to two sets of readings at once. To avoid loss of readings, make sure that
another application on the PC - including the one you are in the process of writing - does not prevent the
driver from collecting readings for more than three sampling intervals.

To allow the driver to sample continuously, make sure that your application does not use too much
processor time by calling the Windows  Sleep() function in any sampling loops (see example
below.)

Hint: Try not to use a  Sleep() call for less than 50-100 milliseconds, e.g.,  Sleep(50) or
Sleep(100)

. If you are programming a Windows GUI application, a good alternative to sampling

loops is the  WM_TIMER message.