4 initialise and test ram – Metrohm 787 KF Titrino User Manual

Page 55

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3.4. Initialise and test RAM

787 KF Titrino

51

3.4 Initialise and test RAM

On the odd occasion large disturbing signals (e.g. mains spikes, lightning, etc.) can have

an adverse effect on the processor functions and hence lead to a system crash. After

such a crash the RAM area must be initialised. Although the basic instrument data remain

stored, the RAM initialisation should be performed only when necessary since the stored

user data (configuration, parameters, calculation variables, etc.) are cleared as a result.

• Power OFF

• Power ON and simultaneously press keys <DOS> and <STOP/FILL>.

RAM Init.

• Press <START>.

confirm RAM Init.

• Press <START>.

RAM Init. activ

RAM is tested and initialised. Subsequently a warm start is executed.
The lost data of the user memory must now be reentered.

If 'system error 3' appears in the display, <Clear>can be used to return to the instrument

program. The initialisation values are loaded automatically. The instrument thus remains

capable of measurement. However, possibly a small loss in accuracy must be antici-

pated. A new optimum adjustment can be performed by Metrohm service. The error mes-

sage 'system error 3' always appears after the instrument is switched on until this adjust-

ment has been performed.

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