Metrohm 774 - RS232 Interface; External Bus Interface

6.4 Diagnosis
774 Oven Sample Processor, Instructions for use
147
diagnosis
>remote test
• <ENTER>
>remote test
remote test connector ?
• Connect the test connector 3.496.8550 to the Remote socket without
switching the unit off.
• <ENTER>
The test runs automatically. If no error occurs, the following is displayed:
>remote test
remote test ok
• Disconnect the test connector and press <ENTER>.
6.4.7 RS232 interface
This diagnosis step allows you to check all outputs and inputs for operabil-
ity.
• Prepare the unit for diagnosis (see Chap. 6.4.2).
• If necessary, press <Ð> several times until
diagnosis
>RS232 test
• <ENTER>
>RS232 test
RS232 test connector ?
• Connect the test connector 3.496.8480 to socket RS232 without switch-
ing the unit off.
• <ENTER>
The test runs automatically. If no error occurs, the following is displayed.
>RS232 test
RS232 test ok
• Disconnect the test connector and press <ENTER>.
6.4.8 External bus interface
This diagnosis step allows you to check all parts of the external bus inter-
face for operability.
• Prepare the unit for diagnosis (see Chap. 6.4.2).