Metrohm 791 VA Detector - Manual (Page 55)

5.5 Index
791 VA Detector
49
5.5 Index
A
Absolute compensation current........... 23
Adjusting knob 8
Figure...................................................2
Operation.......................................... 25
Test ................................................... 39
Ag electrode ......................................... 21
Amalgamated electrode....................... 22
Ambient temperature............................ 42
Analog output 22
Connection ....................................... 14
Figure...................................................3
Technical data .................................. 41
Analog output 23
Connection ....................................... 14
Figure...................................................3
Technical data .................................. 41
Appendix............................................... 41
Arrangement of the instruments..............7
Au electrode .................................... 21,22
Auxiliary electrode
Connect to 791................................. 26
Notes ................................................ 22
B
Back pressure ...................................... 18
Background current ........................ 20,32
Base current ......................................... 29
Baseline unstable ................................. 32
C
Cable (6.2105.030)............................... 43
Cable (6.2106.020)............................... 10
Cable (6.2115.010)............................... 14
Cable (6.2115.060)............................... 14
Cable (6.2120.020)..................... 10,26,44
Carbon paste........................................ 45
Carbon paste electrode .................. 21,45
Care ...................................................... 31
Caution ....................................................5
Cell body 32
Assembly .......................................... 11
Figure........................................... 12,13
Certificate of conformity
and system validation ...................... 48
Changeover Stand-by/Measure........... 23
Chart recorder ................................. 14,27
Check ......................................................7
Classes of substances......................... 15
Classes of substances
which can be determined................. 15
Cleanliness ........................................... 18
Comment.................................................5
Commutator 3
Figure...................................................2
Operation.......................................... 23
Test ................................................... 35
Commutator 4
Figure...................................................2
Operation.......................................... 24
Test ................................................... 35
Commutator 5
Figure ..................................................2
Operation ..........................................24
Commutator 6
Figure ..................................................2
Operation ..........................................24
Commutator 7
Figure ..................................................2
Operation ..........................................24
Compensation current ..........................41
Conformity.............................................47
Connection 15 "AE"
Connecting the
auxiliary electrode .............................13
Figure ..................................................3
Connection 17 "RE"
Connecting the
reference electrode ......................13,26
Figure ..................................................3
Connection 18 "WE"
Connecting the working electrode....13
Connection of working electrode......28
Figure ..................................................3
Connection 19
Figure ..................................................3
Connection 656 – 791...........................10
Contact pin (6.2103.110) ......................45
Current amplifier offset..........................34
Current compensation ..........................36
Current measurement ...........................41
Current measuring sensitivity................25
D
Damping...........................................24,41
Data recording instrument ....................27
Declaration of conformity......................47
Degree of protection ..........................6,42
Detector block 42
ELCD cell assembly ..........................11
Figure ................................................13
Detector signal ......................................16
Diffusion-controlled limiting current ......17
Digital switch 11
Figure ..................................................2
Dimensions ...........................................42
Disposal...................................................6
Dummy cell .................................34,43,44
E
Earthing ................................................6,9
Earthing socket 14
Figure ..................................................3
ELCD cell 27
Assembly...........................................11
Connection to VA Detector 791 ........13
Figure ................................................12
Ordering designation ........................44
Startup...............................................26
Electrical safety .......................................6
Electrochemical detection.....................15
Electrochemical Detector 656
Connection to VA Detector 791 ........10
Installation .........................................10
Electrode cable (6.2120.020) ...............10
Electrodes .............................................20
Electrolyte vessel 41
Assembly...........................................11
Figure ................................................12
Filling reference electrode ................26
Electromagnetic compatibility ..............42
Eluent ....................................................18
EMC.......................................................42
Emitted interference..............................42
Equilibration phase ...............................27
EU Declaration of conformity................47
F
Filling tool ..............................................45
Front ........................................................2
Front peak.............................................33
Full-scale deflection ..............................25
Fuse holder 12
Change fuses......................................8
Figure ...............................................3,9
Fuses...............................................8,9,42
G
General precautionary rules ...................6
Glassy Carbon electrode.................20,45
Gold electrode ......................................45
H
Handling of solvents ...............................6
Hazard.....................................................5
Housing.................................................42
I
Immunity to interference .......................42
Information on the
Instructions for Use.............................4
Installation ...............................................7
Instructions for Use (8.791.1013) ...........4
Instrument description ............................1
Instrument test ......................................34
Interference level...................................20
Introduction .............................................1
K
Knurled screw 43
ELCD cell assembly..........................11
Figure ................................................13
L
Leaks.......................................................6
Location ..................................................7