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#
# This file is part of the PyMeasure package.
#
# Copyright (c) 2013-2024 PyMeasure Developers
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
from pymeasure.instruments import Instrument
from pymeasure.instruments.validators import strict_range
from time import sleep
from enum import IntFlag
class Thermotron3800(Instrument):
""" Represents the Thermotron 3800 Oven.
For now, this driver only supports using Control Channel 1.
There is a 1000ms built in wait time after all write commands.
"""
def __init__(self, adapter, name="Thermotron 3800", **kwargs):
super().__init__(
adapter,
name,
includeSCPI=False,
**kwargs
)
def write(self, command):
super().write(command)
# Insert wait time after sending command.
# This wait time should be >1000ms for consistent results.
sleep(1)
id = Instrument.measurement(
"IDEN?", """ Get the instrument identification
:return: String
"""
)
temperature = Instrument.measurement(
"PVAR1?", """ Get the current temperature of the oven
via built in thermocouple. Default unit is Celsius, unless
changed by the user.
:return: float
"""
)
mode = Instrument.measurement(
"MODE?", """ Get the operating mode of the oven.
:return: Tuple(String, int)
""",
get_process=lambda mode: Thermotron3800.__translate_mode(mode)
)
setpoint = Instrument.control(
"SETP1?", "SETP1,%g",
"""Control the setpoint of the oven in Celsius. (float)
"setpoint" will not update until the "run()" command is called.
After setpoint is set to a new value, the "run()" command
must be called to tell the oven to run to the new temperature.
:return: None
""",
validator=strict_range,
values=[-55, 150]
)
def run(self):
'''
Starts temperature forcing. The oven will ramp to the setpoint.
:return: None
'''
self.write("RUNM")
def stop(self):
'''
Stops temperature forcing on the oven.
:return: None
'''
self.write("STOP")
def initalize_oven(self, wait=True):
'''
The manufacturer recommends a 3 second wait time after after initializing the oven.
The optional "wait" variable should remain true, unless the 3 second wait time is
taken care of on the user end. The wait time is split up in the following way:
1 second (built into the write function) +
2 seconds (optional wait time from this function (initialize_oven)).
:return: None
'''
self.write("INIT")
if wait:
sleep(2)
class Thermotron3800Mode(IntFlag):
"""
+--------+--------------------------------------+
| Bit | Mode |
+========+======================================+
| 0 | Program mode |
+--------+--------------------------------------+
| 1 | Edit mode (controller in stop mode) |
+--------+--------------------------------------+
| 2 | View program mode |
+--------+--------------------------------------+
| 3 | Edit mode (controller in hold mode) |
+--------+--------------------------------------+
| 4 | Manual mode |
+--------+--------------------------------------+
| 5 | Delayed start mode |
+--------+--------------------------------------+
| 6 | Unused |
+--------+--------------------------------------+
| 7 | Calibration mode |
+--------+--------------------------------------+
"""
PROGRAM_MODE = 1
EDIT_MODE_STOP = 2
VIEW_PROGRAM_MODE = 4
EDIT_MODE_HOLD = 8
MANUAL_MODE = 16
DELAYED_START_MODE = 32
UNUSED = 64
CALIBRATION_MODE = 128
@staticmethod
def __translate_mode(mode_coded_integer):
mode = Thermotron3800.Thermotron3800Mode(int(mode_coded_integer))
return mode
|
