devices.lakeshore:Lakeshore335

Interface for Lakeshore 335 temperature controller.

Usage

Source

devices.lakeshore:Lakeshore335(
    interface,
    **kwargs,
)

Extends the base Lakeshore3xx class with specific features for the Lakeshore 335 model.

Methods

Name Description
__init__() Initialize Lakeshore 335 temperature controller.
getControlMode() Get the control mode of the heater loop.
getHeaterRange() Get the heater range.
getTuningStatus() Get the current autotune status.
initiateAutotune() Initiate autotune on the specified heater loop.
setControlMode() Set the control mode of the heater loop.
setHeaterRange() Set the heater range.
setManOutput() Set the manual output of the heater loop.
setTLimit() Set the temperature limit of the specified channel.

__init__()

Initialize Lakeshore 335 temperature controller.

Usage

Source

__init__(
    interface,
    **kwargs,
)

Parameters

interface: str

VISA resource string for the instrument.

**kwargs: dict
Additional keyword arguments.
  • channel: Default channel to use (default: “A”)
  • baud_rate: Serial communication baud rate (default: 57600)
  • data_bits: Number of data bits (default: 7)
  • read_termination: Response termination character (default: CRLF)
  • parity: Parity bit configuration (default: odd)

getControlMode()

Get the control mode of the heater loop.

Usage

Source

getControlMode(loop=1)

Parameters

loop: int = 1
Heater loop to query, by default 1.

Returns

int
The control mode of the heater loop (0 = Off, 1 = Closed Loop PID, 2 = Zone, 3 = Open Loop, 4 = Monitor out, 5 = Warmup Supply).

getHeaterRange()

Get the heater range.

Usage

Source

getHeaterRange(loop=1)

Parameters

loop: int = 1
Heater loop to query, by default 1.

Returns

int
The selected range of the heater loop.

getTuningStatus()

Get the current autotune status.

Usage

Source

getTuningStatus()

Returns

List[str]
A list of strings: [0]: 0 = no active tuning, 1 = active tuning. [1]: 1 = Output 1, 2 = Output 2 [2]: 0 = no tuning error, 1 = tuning error [3]: stage status

initiateAutotune()

Initiate autotune on the specified heater loop.

Usage

Source

initiateAutotune(
    mode,
    loop=1,
)

Parameters

mode: int

The autotune mode to use (0 = P Only, 1 = PI, 2 = PID).

loop: int = 1
The heater loop to initiate autotune on, by default 1.

setControlMode()

Set the control mode of the heater loop.

Usage

Source

setControlMode(
    mode,
    loop=1,
    channel="A",
)

Parameters

mode: int

The control mode to set (0 = Off, 1 = Closed Loop PID, 2 = Zone, 3 = Open Loop, 4 = Monitor out, 5 = Warmup Supply).

loop: int = 1

Heater loop to set the control mode for, by default 1.

channel: str = "A"
Channel to set the control mode for (A or B), by default “A”.

setHeaterRange()

Set the heater range.

Usage

Source

setHeaterRange(
    heaterRange,
    loop=1,
)

Parameters

heaterRange: int

The range to set (0-3, where 0=Off, 1=Low, 2=Med, 3=High).

loop: int = 1
Heater loop to set, by default 1.

Notes

The function tests if the range would be correctly set, i.e. 0-3.

setManOutput()

Set the manual output of the heater loop.

Usage

Source

setManOutput(
    power,
    loop=1,
)

Parameters

power: float

The manual output power to set (0 to 100 %).

loop: int = 1
Heater loop to set the manual output for, by default 1.

setTLimit()

Set the temperature limit of the specified channel.

Usage

Source

setTLimit(
    limit,
    channel="A",
)

Parameters

limit: int

The temperature limit to set (in Kelvin).

channel: str = "A"
The channel to set the temperature limit for (A or B), by default “A”.