A Python wrapper for the SSI-Teledyne Next Generation class HPLC pumps.
If you notice something weird, fragile, or otherwise encounter a bug, please open an issue.
The package is available on PyPI.
python -m pip install --user py-hplc
You can open a pump instance like this
>>> from py_hplc import NextGenPump
>>> pump = NextGenPump("COM3") # or "/dev/ttyUSB0", etc.
Or like this
>>> from py_hplc import NextGenPump
>>> from serial import Serial
>>> device = Serial("COM3") # or "/dev/ttyUSB0", etc.
>>> pump = NextGenPump(device)
You can inspect the pump for useful information such as its pressure units, firmware version, max flowrate, etc.
>>> pump.version '191017 Version 2.0.8' >>> pump.pressure_units 'psi' >>> pump.pressure 100
The interface behaves in a typical way. Pumps can be inspected or configured without the use of getters and setters.
>>> pump.flowrate 10.0 >>> pump.flowrate = 5.5 # mL / min >>> pump.flowrate 5.5 >>> pump.run() 'OK/' >>> pump.is_running True >>> pump.stop() 'OK/' >>> pump.is_running False >>> pump.leak_detected False
Some pump commands, such as "CC" (current conditions), return many pieces of data at once.
This package makes the data available in concise, descriptive, value-typed dataclasses.
>>> pump.current_conditions() CurrentConditions(pressure=0, flowrate=10.0, response='OK,0000,10.00/') >>> pump.read_faults() Faults(motor_stall_fault=False, upper_pressure_fault=False, lower_pressure_fault=False, response='OK,0,0,0/')
See the API Documentation for more usage examples.
Released under the MIT license, (C) 2021.
Written by @teauxfu for Premier Chemical Technologies, LLC.