13 various commands, 1 stirring (stir), 2 waiting (wait) – Metrohm 840 PC Control 5.0 / Touch Control User Manual
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4
Parameters
PC Control / Touch Control
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4.13 Various commands
Various commands are brought together in the command group Mis-
cellaneous
: switching the stirrer on/off, defining a waiting period or
stopping the run, requesting sample data or common variables, acous-
tic signal, signing the determination and stopping the method se-
quence.
4.13.1 Stirring (STIR)
The STIR command is used to switch a connected stirrer on or off.
• Control device: Selects the control device (Titrando, USB Sample
Processor etc.) to which the stirrer which is to be controlled is con-
nected. This button is only shown when several control devices
have been configured under System/Device manager (see Sec-
tion 3.10
). The device name is always shown in the selection list.
• Stirrer: Selects the stirrer. All the stirrer connections (MSB) will al-
ways be shown.
• Status/Duration: The stirrer can be switched on or off, or switched
on for a certain time. When the stirrer is switched on, you can set
the stirring rate.
• Stirring rate: You can test the optimal stirring rate manually (see
Section 3.24.3
). The stirring direction changes as the sign changes.
The default setting 8 corresponds to 1000 rpm (see Section 4.1.5,
).
4.13.2 Waiting (WAIT)
This command can be used to pause the method sequence.
• Hold sequence: When this function is activated the method se-
quence will be halted (HOLD) until it is continued manually with
[Continue]
.
• Waiting time: If Hold sequence is deactivated then a waiting time
can be entered. The method sequence will restart automatically
when this waiting time has elapsed.
• Message: When this function is activated the text for the message
will be shown during the waiting time.
• Message text: Text to be shown during the waiting time.