Metrohm 796 Titroprocessor - Manual (Page 274)

13.1 Diagnosis
796 Titroprocessor, Instructions for use 268 268
13.1.10 To check Analog Interface B
With this diagnostic step the analog inputs of Interface B can be checked for their function-
ality. For this test the testbox with article number 1.767.0010 is required.
1. The procedure is exactly the same as described in Section 0, the only difference
being that under point 3 one has to mark the letter B instead of letter A.
13.1.11 To check Dosimat Interface
With this diagnostic step the interfaces for the dosing units can be checked for their func-
tionality.
1. Prepare instrument for diagnostic test (see chap. 13.1.2).
2. <Dosimat interf.>
3. Without switching the instrument off, connect a 700 Dosino to the interface being
tested.
4. <Activ. triacs>
Ä Power supply to the Dosino is activated. This process takes a certain time and is not noticed by the tester.
5. <Select Dosimat>
6. With the cursor, select the interface to be tested (e.g. A1) (e.g. A1)
7. <ENTER>
8. <Regist. wr./rd.>
Ä The test runs automatically. If a defect is found, an error message appears on the display, otherwise the previous
screen page appears.
9. <Funct. test>
Ä The test runs automatically. If a defect is found, an error message appears on the display, otherwise the previous
screen page appears.
10. Check the other dosing interfaces, following exactly the same procedure as de-
scribed in points 3...9.
11. The test is quit by pressing <QUIT>.