Metrohm 746 VA Trace Analyzer - Manual (Page 552)

7.6 Diagnosis
746 VA Trace Analyzer / 747 VA Stand
7-53
1 Prepare instrument for diagnostic test (see section 7.6.2).
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3
4 Plug 3.496.8550 Test plug into 'Control Lines' connection.
5
6 The test runs automatically.
(If a fault appears, an error message is outputted.)
7 Press several times until the ”MONITORING” page appears.
8 Remove test plug.
7.6.6 Checking the keypad
1 Prepare instrument for diagnostic test (see section 7.6.2).
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3
4
5
6 With the exception of the special keys , and ,
all keys must be pressed once. The special keys must be pressed as follows:
• +
• (on the left of the space bar) +
• (on the right of the space bar) + <@>
• The space bar consists of a combination of three individual keys. It
must be pressed on the left, in the middle and on the right.
The keypad is shown symbolically on the screen. If the test is successful, the
gray background behind each key disappears.
7 Press several times until the ”MONITORING” page appears.