beautypg.com

3 stop conditions, 4 conditioning, Stop conditions – Metrohm 900 Touch Control Manual User Manual

Page 363: Conditioning

background image

■■■■■■■■■■■■■■■■■■■■■■

29 Parameters

900 Touch Control

■■■■■■■■

347

29.6.3

Stop conditions

The conditions for canceling the titration are defined under [Stop condi-
tions]
, if this does not occur automatically. This could be the case when
the endpoint set is not reached or if the stop criterion (see "Stop crite-
rion", page 345)
is not fulfilled.

Stop time

The titration is stopped when the specified time has elapsed since the start
of the titration.

Input range

1 - 999999 s

Selection

off

Default value

off

29.6.4

Conditioning

The conditions required for conditioning are defined under [Condition-
ing]
.

Conditioning

on | off (Default value: on)

If this parameter is activated, then the first time the titration is started the
working medium will be titrated to the endpoint with the specified control
parameters. The status is kept stable. The actual method run does not
begin until [

] has been pressed once more.

Start drift

If the measured drift is smaller than this value for a certain time (so-called
stabilizing time), Conditioning OK is displayed and the titration can be
started. The stabilizing time is defined in the dialog Conditioning / Con-
ditioning options
.

Input range

1 - 999 µg/min

Default value

20 µg/min

Drift correction

The endpoint amount can be corrected taking the drift value into account.
For this, the drift is multiplied with the drift correction time and this value
is then subtracted from the endpoint amount. The drift correction time is
the time interval between the end of conditioning and the end of the
determination.

Selection

auto | manual | off

Default value

off