LABEC M-TIT-5 - Manual (Page 19)

corresponding titration, shown as follows:
View Titrate Mode Set Calibrate
Titration mode READY
Feed
Clean
Titrate
Titration
Pre-titration
Preset end point titration
Mode titration
Blank titration
Manual titration
Exit
Enter
Diag.28 Titration mode selection
7.1 Pre-titration mode
Pre-titration mode is one of the main titration modes, many mode titration generate from
pre-titration mode. Meter can find titration end automatically through pre-titration then
generate special titration mode. When user is not familiar with some of titration or not clear
with the actual titration end, he can use pre-titration mode. In starting status, press ‘Titrate’
button, meter displays all titration modes, user select ‘Pre-titration’ then press ‘End’ button or
select ‘pre-titration’ again, meter enters into pre-titration, shown as follows:
Start titration Stirring Resume set
Minimal volume: 0.02mL
End volume: 40mL Balance time switch: on
Value: 10s
MV titration pH titration
EP1 end point
Jump value: large middle small
Value: 100
MV/pH Titration Jump Value Set
Balance potential switch: on
Value: 1mV
Pre-titration/parameter setting
Diag.29 Parameter setting for pre-titration mode
Before pre-titration mode, user needs to set some parameters for pre-titration mode. The parameter
including: mV/pH titration parameter, minimal volume parameter, balance potential parameter,
balance time parameter, end point jump value parameter and end volume parameter. This part of
parameter controls pre-titration mode of the meter, amending of it will influence the result of
pre-titration. In the most situations, it is unnecessary for users to amend this part of parameter; the
titration demand will be satisfied.
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