Connecting to PT 104 Picoch by Pico Technology in Python

Instrument Card

The PT-104 is a four-channel temperature measuring data logger. It offers the ultimate in resolution (0.001 °C) and accuracy (0.015 °C). Along with temperature it can also be used to measure resistance.

Device Specification: here

Manufacturer card: PICO TECHNOLOGY

Pico Technology was established in 1991 and soon became a leader in the field of PC Oscilloscopes and data loggers. Pico has always been recognized for providing innovative, cost-effective alternatives to traditional test equipment and data acquisition products. In doing so, we have made high-quality instrumentation affordable.

• Headquarters: Texas, United States
• Yearly Revenue (millions, USD): 24
• Vendor Website: here

Connect to the PT 104 Picoch in Python

Read our guide for turning Python scripts into Flojoy nodes.

Flojoy

PROTOCOLS > SCPI

📄 IDN

Query a device's identity through the universal *IDN? SCPI command.

📄 MEASURE VOLTAGE

Query an instrument's measured output voltage, such as a DMM or power supply.

📄 SCPI WRITE

Write a SCPI command to a connected bench-top instrument and return the result.

PyTango

import pytango as pt

# Create a DeviceProxy for the PT-104 device
pt104 = pt.DeviceProxy("pt104/01")

# Get unit information
driver_version = pt104.driver_version
usb_version = pt104.usb_version
hardware_version = pt104.hardware_version
variant = pt104.variant
batch_serial = pt104.batch_serial
cal_date = pt104.cal_date
kernel_driver_version = pt104.kernel_driver_version

# Set mains rejection to 50 Hz
pt104.set_mains(0)

# Set channel 1 for a PT-100 sensor
pt104.set_channel(1, "PT100", 4)

# Collect data
num_samples = 30
data_values = []

for _ in range(num_samples):
    value = pt104.get_value(1)
    data_values.append(value / 1000)  # Convert to °C
    pt.sleep(1)

# Plot the data
import matplotlib.pyplot as plt

plt.plot(range(1, num_samples+1), data_values)
plt.title("Plot of Temperature vs. Sample")
plt.xlabel("Sample")
plt.ylabel("Temperature (°C)")
plt.legend(["Channel 1"])
plt.grid(True)
plt.show()

# Close connection to device
pt104.close_unit()