Metrohm 787 KF Titrino - Manual (Page 51)

3.3. Diagnosis
787 KF Titrino 47
8 External inputs and outputs
This test is meaningful only if the 787 KF Titrino is used interconnected with other instruments via the 'Remote' con-
nection. In addition, a 3.496.8510 test plug normally used in the repair service is required for this test. However, this
plug can also be purchased by customers under the above number.
For the sake of completeness, the procedure is described here. If a diagnostic test of the external inputs and outputs
is not required, continue with point 9.
PIN PIN PIN PIN
1  24 5  21
2  12 9  18
3  23 10  17
3  22 11  16
Fig. 3 Connections in the 3.496.8510 test plug
• Press <4>
extern input/output test
• Press <ENTER>.
I/O-test-connector?
• Insert the 3.496.8510 test plug in port B 'Remote'. (Do not switch off instrument!)
• Press <ENTER>.
Test sequence:
1. In case of an error an error message is displayed. If for example no test plug is con-
nected, error message error 50 01HEX appears).
2. If no error is found, after about 1 s display shows
extern input/output o.k.
• Remove test plug.
• Press <CLEAR>.
diagnose press key 0...9