Metrohm 765 Dosimat User Manual download pdf (Page 27)

3.2 Diagnosis

765 Dosimat

3.2.4 Diagnosis of cylinder code

Prepare instrument for diagnostic test (see chap. 3.2.3).

<0>

cylinder code

<GO>

no exch. unit!

Insert (dummy) exchange unit.

code: xx ml

Check whether the displayed ml-Code (xx ml) corresponds to the exchange unit.

Various exchange units can be inserted to verify their ml-code.

If an exchange unit is coded incorrectly or if the code switches are inoperative, the display shows: E 90: ..

no code!

<CLEAR>

diagn. Key 0...9

3.2.5 Diagnosis of key board

Prepare instrument for diagnostic test (see chap. 3.2.3).

<1>

keys test }

<GO>

key: rate

The display requests to press the key <RATE> on the keyboard 6.2149.000.

<RATE>, <7>, <4>, <1> etc.

If the correct key was pressed and the test was positive the name of the next key to be pressed will be dis-

played.

Display E 10: and on the right-hand side the name of an other key indicates a fault in the keyboard matrix, or

the wrong key was pressed.

A fault indication may be cancelled by pressing <CLEAR>. “breaking off ?“ is then displayed, asking you

whether you want to stop the test or not.

- To stop press <CLEAR>.

- To continue press <GO> until the display shows “keys test end“

After pressing the last key (GO), the following appears:

keys o.k.

<CLEAR>

diagn. key 0...9

3.2.6 Diagnosis of display

Prepare instrument for diagnostic test (see chap. 3.2.3).

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Metrohm 765 Dosimat User Manual Page 27