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Instrument catalog

Supported instruments and their default declarations. For the runtime lifecycle see Instruments; to add one see Adding an Instrument.

Classes

Logical name Class Hardware Connection
Keithley2450 laser_setup.instruments.keithley.Keithley2450 Keithley 2450 SourceMeter VISA
Keithley6517B laser_setup.instruments.keithley.Keithley6517B Keithley 6517B Electrometer VISA
TENMANEG / TENMAPOS / TENMALASER laser_setup.instruments.tenma.TENMA TENMA 72-xxxx supplies Serial
ThorlabsPM100USB pymeasure.instruments.thorlabs.ThorlabsPM100USB Thorlabs PM100D/USB VISA
Bentham laser_setup.instruments.bentham.Bentham Bentham TLS120Xe light source bendev USB
PT100SerialSensor laser_setup.instruments.serial.PT100SerialSensor RosaTech PT100 sensor Serial
Clicker laser_setup.instruments.serial.Clicker RosaTech hot-plate controller Serial

Default declarations (instruments.yaml)

Keithley2450:
  adapter: USB0::0x05E6::0x2450::04448997::0::INSTR
  name: Keithley 2450
  IDN: KEITHLEY
  target: ${class:laser_setup.instruments.keithley.Keithley2450}

Bentham:
  adapter: COM6
  name: Bentham TLS120Xe
  IDN: USB\VID_04D8&PID_1705\41839/1
  target: ${class:laser_setup.instruments.bentham.Bentham}
  kwargs:
    manufacturer: Bentham
    vendor_id: 1240
    read_termination: \r\n\x00
    write_termination: \r\n\x00

TENMANEG: {adapter: COM3, IDN: "TENMA 72-2715 V6.6 SN:37793902", target: "${class:laser_setup.instruments.tenma.TENMA}"}
TENMAPOS: {adapter: COM4, IDN: "TENMA 72-2715 V6.6 SN:37793916", target: "${class:laser_setup.instruments.tenma.TENMA}"}
TENMALASER: {adapter: COM7, IDN: "TENMA 72-2715 V6.6 SN:37793899", target: "${class:laser_setup.instruments.tenma.TENMA}"}

ThorlabsPM100USB:
  adapter: USB0::0x1313::0x8078::P0037982::INSTR
  IDN: Thorlabs,PM100D,P0037982,2.8.1
  target: ${class:pymeasure.instruments.thorlabs.ThorlabsPM100USB}

PT100SerialSensor:
  adapter: COM8
  IDN: ROSATECH,TSN100,P0000002,1.0.1
  target: ${class:laser_setup.instruments.serial.PT100SerialSensor}

Clicker:
  adapter: COM8
  IDN: ROSATECH,CLK100,P0000003,1.0.0
  target: ${class:laser_setup.instruments.serial.Clicker}

Note

adapter values are machine-specific. Run setup_adapters to auto-detect and rewrite them.

Notable methods

Keithley2450

  • make_buffer(name, size, mode) / clear_buffer() — named trace buffers.
  • get_data() → [time, current]; get_time().
  • apply_voltage(), measure_current(current, nplc, auto_range), enable_source().
  • shutdown() plays a short triad before the base shutdown.

TENMA

  • voltage / current / output controls.
  • ramp_to_voltage(target, step, step_time) — soft ramp to avoid overshoot.
  • apply_voltage(voltage, current, timeout).
  • shutdown() ramps to 0 V then disables the output.

Bentham

  • wavelength, goto, filt (filter wheel), lamp, output.
  • source_current / source_voltage (lamp PSU), photocurrent, power, resistance.
  • Wraps bendev.Device; sends SYST:REM on connect; shutdown() turns the lamp off and closes the adapter.

PT100SerialSensor

  • Background daemon thread continuously polls; read .data → (plate_T, ambient_T, clock).
  • DATA_COLUMNS = ['Plate T (degC)', 'Ambient T (degC)', 'Clock (ms)'].

Clicker

  • CT (current temperature, read-only), TT (target).
  • set_target_temperature(T) then go() to start heating.

Debug & disabled instruments

  • DebugInstrument — returned under -d when a real connection fails; yields random values.
  • DisabledInstrument — substituted by instruments.disable(self, 'name'); silently ignores all commands. Used to skip optional hardware.

See Instruments → Debug mode and Disabling instruments.