Metrohm 774 - Page 5

Table of contents
Page
6 Appendix 137
6.1 Error messages __________________________________________ 137
6.2 Technical data____________________________________________ 140
6.3 Maintenance and servicing ________________________________ 142
6.3.1 Maintenance / service............................................................... 142
6.3.2 Servicing / care ......................................................................... 142
6.4 Diagnosis ________________________________________________ 143
6.4.1 General ..................................................................................... 143
6.4.2 Preparing the instrument .......................................................... 144
6.4.3 Main memory (RAM)................................................................. 145
6.4.4 Display ...................................................................................... 145
6.4.5 Keypad...................................................................................... 146
6.4.6 Remote interface....................................................................... 146
6.4.7 RS232 interface......................................................................... 147
6.4.8 External bus interface ............................................................... 147
6.4.9 Beeper....................................................................................... 148
6.4.10 Rack code recognition............................................................ 148
6.5 Initialise data memory_____________________________________ 149
6.6 Validation / GLP __________________________________________ 152
6.7 Warranty and Conformity__________________________________ 154
6.7.1 Warranty.................................................................................... 154
6.7.2 EU Declaration of Conformity ................................................... 155
6.7.3 Certificate of Conformity and System Validation...................... 156
6.8 Accessories______________________________________________ 157
7 Index 159