Ultra Start 15xx Manual de usuario descargar pdf (Pagina 25)

2-11

Chapter 2 — Basic Operation of the TDC Ultra

Memory Test

The TDC Ultra contains low-power solid state memory that is used

to store the data from the various counts. Solid state memory is

extremely reliable. However, like any electronic element, it can go

bad. If you suspect there may be a problem with the memory you

can easily test it. To test the memory, select MEMORY from the

TESTS menu. The screen shown below is then displayed.

The TDC Ultra automatically starts testing the memory. It takes

only a few seconds to complete the test. The bottom line of the

display shows the progress of the test, starting at 000k and ending

at 132k. The test does not affect any data that is stored in the TDC

Ultra. If the test is successful, the word PASSED is displayed, as

shown below.

If the test is not successful, an error message is printed. There is

not much you can do, except check the main batteries to see if they

are low. It is possible (but very unlikely) that if the batteries are

low, the microprocessor is not executing the test properly. If the

memory test fails, contact us using the information in the front of

this manual to arrange to ship the TDC Ultra back for repair.

Display Test

The liquid crystal display used in the TDC Ultra displays four lines

of 20 characters. Each character is made up of 35 dots, in a 5 x

7 matrix. That’s a lot of dots! The display test lets you check the

display to make sure it is showing what it should be showing.

- - - MEMORY TEST - - -

TESTING

Please wait

037k bytes tested...

- - - MEMORY TEST - - -

PASSED

Press DO to return

to TESTS Menu

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Ultra Start 15xx Manual de usuario Pagina 25