Metrohm 756 KF Coulometer - Manual (Page 26)

3.4 Configuration, key
756/831 KF Coulometer, Instructions for Use 18
number of determ. 1
determ.counter 0
reagent lifetime 7 d
time counter 0 d
reagent capacity 1000 mg
capacity counter 0 mg
drift OFF ug/min
reagent change: OFF
waiting time 0 s
If
on
has been set:
Monitoring according to the number of determinations
carried out (1...999, OFF)
The number of determinations which can be carried out
depends on the type of sample (very polluting,
lowering the conductivity) and on the amount of
sample which is to be injected.
OFF
means that monitoring is not active.
Determination counter (0...999)
Counts the number of determinations carried out since
the last time the counters were reset to zero.
Monitoring according to the lifetime of the reagent
(1...9999 d, OFF)
OFF
means that monitoring is not active.
Time counter (0...9999 d)
Counts the number of days since the last time the
counters were reset to zero.
Monitoring the reagent capacity (1...9999 mg, OFF)
With the generator electrode without diaphragm and a
filling volume of 100 ml the capacity is 1000 mg water.
For the generator electrode with diaphragm the
capacity of the katholyte is 300 mg (with 5 ml filling
volume).
OFF
means that monitoring is not active.
Counting the capacity (0...9999 mg)
Adds the weight of water since the last time the
counters were reset to zero.
Monitoring of drift (0...99 ug/min, OFF)
If the current drift value is stable for 2 minutes and
above the set value for drift monitoring (but not
max.=2240 ug/min), the message "change reagent"
appears.
OFF
means that monitoring is not active.
Reagent exchange (auto, man., OFF)
auto
: the reagent is automatically exchanged by the
connected Dosino when the reagent monitoring re-
sponds (see above). The reagent can also be ex-
changed manually at any time with .
man.
: the reagent can be exchanged with .
The reagent exchange procedure is described on page
255.
OFF
: the key is not active.
If "auto" or "man." has been set:
Waiting time before aspiration (0... 999 999 s)
E.g. the waiting time can be used in order to wait for
the phase separation between sample and reagent
when the sample is to be aspirated off.