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Ram-test, Diagnosis of spindle zero and cock changeover, Diagnosis of spindle drive – Metrohm 765 Dosimat User Manual

Page 31: 11 ram-test, 13 diagnosis, Spindle drive

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3.2 Diagnosis

765 Dosimat

27

5.

diagn. key 0...9

6.

Remove test plug 3.496.8360.

3.2.11 RAM-test

1.

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

2.

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RAM test

3.

The test runs automatically. If no fault is found, the following appears:

RAM TEST passed

4.

diagn. key 0...9

3.2.12 Diagnosis of spindle zero and cock changeover

1.

Power off.

2.

Insert exchange unit.

3.

Power on.

Dosimat fills.

4.

Remove exchange unit.

5.

To check the spindle zero.

The spindle must be 0.2 - 0.6 mm below the edge of the mounting plate (see Fig. 2).

The link piece of the cock coupling must be parallel to the side walls of the Dosimat (see Fig. 3).

0.2 - 0.6 mm

Fig. 2

Fig. 3

3.2.13 Diagnosis of spindle drive

1.

Insert exchange unit and put the burette tip into a collecting receptacle.

2.

Connect push-button cable 6.2107.000 (if available).