Thermo Scientific Accela Series: Pump

Commands and Tips for Thermo Scientific Devices
Thermo Scientific Accela Series: Pump

The following commands and properties are available for the Accela pump (please note that the display Filter level determines which commands and properties are displayed).

Also, refer to the information in the manual shipped with the instrument.

General Commands and Properties:

Command Property	Description
BoardNumber	Board number of the pump (read-only).
Connect	Connects the instrument to Chromeleon.
Connected	Indicates whether the instrument is connected to Chromeleon, that is, under computer control (also, see Connect, Disconnect).
Disconnect	Disconnects the instrument from Chromeleon and activates manual control from the instrument panel. Also see Connect.
DriverID	Unambiguous driver name (read-only).
DriverVersion	Driver version (read-only).
FirmwareVersion	Indicates the firmware version of the instrument (read-only).
Manufacturer	Manufacturer of the driver (read-only).
ModelNo	Reports the instrument's model number (read-only).
SerialNo	Indicates the serial number of the instrument (read-only).

Commands and Properties for flow and pressure:

Command/Property	Description
%A, %B, %C, %D	Percentage of each solvent component.
*.Equate	Name of the component (A, B, C, or D).
*.Value	Current value [%] for components A, B, C, or D (read-only).
Flow	Sets the flow rate [ml/min].
*.Nominal	Reports the nominal flow.
*.Value	Reports the current flow (read-only).
Pressure	Pump pressure.
*.LowerLimit	Sets the lower pressure limit. The system stops the sample batch and starts emergency handling if the value is outside the set range.
*.UpperLimit	Sets the upper pressure limit. The system stops the sample batch and starts emergency handling if the value is outside the set range.
*.Value	Indicates the current pump pressure (read-only).
PressureMode	(Accela Pump only) Sets the pump's pressure mode: Low for working in the high pressure range (~0-500 bar / 0-7000 PSI), or High for working in the ultra-high pressure range (~500-1000 bar / 7000-15.000 PSI). Note: You may specify a default setting for the PressureMode property on the Thermo Accela Pump Configuration page in the Chromeleon Server Configuration. Upon each Connect command, the property will be reset to the specified default.

Commands and Properties for leak sensor and purge pump (Accela 600 and Accela 1250 only):

Note:

Support of the Accela 600 and 1250 Pumps is available starting with the SR11 Driver Update that provides extended Accela system support.

Command/Property	Description
Compressibility	Indicates the compressibility of the current solvent composition (read-only).
Leak	Indicates the status of the leak sensor (read-only).
LeakMode	Specify the action that is taken when a leak is detected. Ignore:a warning appears in the Audit Trail; the run continues StopImmediately: the pump is stopped immediately StopAfterRun: the pump is stopped after the current sample run is finished. AbortImmediately: issues an abort error immediately; use a Chromeleon emergency program to define how the system reacts. AbortAfterRun: issues an abort error after the current sample run is finished; use a Chromeleon emergency program to define how the system reacts. For details about an emergency program for the Accela pump, refer to Thermo Scientific Accela Pump: Emergency Program.
PurgePump	Activates or deactivates the purge pump.
PurgePumpOnTime	Specify how long the purge pump may be on until it is automatically turned off.
PurgePumpOffTime	Specify how long the purge pump may be off until it is automatically turned on.
SealFrictionBufferPiston1/2	Indicates the seal friction of the first or second buffer piston (read-only).
SealFrictionWorkPostion1/2	Indicates the seal friction of the first or second work piston (read-only).

For information about how to install the instrument, refer to Hardware Installation Thermo Scientific Accela Pump: Installation.