Harvard Apparatus Syringe Pump Elite11

Introduction

Harvard-Apparatus Elite11 pumps connected via USB cables (which creates a virtual serial port) are supported in flowchem via the Elite11 device type. Depending on the pump model, the component might be able of infuse/withdraw or just infusing. This difference reflect the existence in commerce of both variants, i.e. pumps only capable of infusion and pumps that support both infusion and withdrawing commands.

As for all flowchem devices, the virtual instrument can be instantiated via a configuration file that generates an openAPI endpoint.

Configuration

Configuration sample showing all possible parameters:

[device.my-elite11-pump]  # This is the pump identifier
type = "Elite11"
port = "COM11"  # This will be /dev/tty* under linux/MacOS
address = 0  # Only needed for daisy-chaining. The address can be set on the pump, see manufacturer manual.
syringe_diameter = "4.6 mm"
syringe_volume = "1 ml"
baudrate = 115200  # Values between 9,600 and 115,200 can be selected on the pump! (115200 assumed if not specified)
force = 100  # Value percent, use lower force for smaller syringes, see manual.

Note

Serial connection parameters Note, further parameters for the serial connections (i.e. those accepted by serial.Serial) such as baudrate, parity, stopbits and bytesize can be specified. However, it should not be necessary as the following values (which are the default for the instrument) are automatically used:

baudrate 115200

API methods

Once configured, a flowchem Elite11 object will expose the following commands:

Device detection

Lab PCs often have several devices connected via serial ports. Elite11 pumps can be auto-detected via the flowchem-autodiscover command-line utility. After having installed flowchem, run flowchem-autodiscover to create a configuration stub with all the devices that can be auto-detected on your PC.

Further information

For further information about connection of the pump to the controlling PC, daisy-chaining via firmware cables etc. please refer to the manufacturer manual.