Tutorials

VCP icon with a tutorial icon merged together

Getting started with VCP mode under Windows

Tutorials
This tutorial is intended as a complementary tool to guide users step-by-step through the process of getting their Dracal VCP instruments up and running.
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Change the scale of a channel in Graph View with math channels

Blog
Presentation and illustration of the scale transformation formula to facilitate the graphic visualization of several types of measurements whose scales are very different from each other.
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How to Combine Math Channels and Graph View Features

Tutorials
We want to generate an image which shows together the fluctuation of ambient temperature in Celsius, and that of a normal atmospheric pressure in kPa, by offsetting the pressure. To do so, we will need to use a combination of the mathematical channels and configuration features in the Graph View tab. Prior to anything, take […]
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Graph View: Visualize Your Data Over Time

Tutorials
The Dracal Technologies data acquisition system allows not only to record precision measurement data, but also to visualize the data in a graphical way.  Note that real, virtual and mathematical channels [1] can all be added to the graph. The ‘Auto-scale X axis’ box [2], when checked, allows you to see the record of all […]
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Big View Tab: Your Data at a Glance

Tutorials
Sometimes, when you measure a parameter, you want to consult its data quickly and punctually. This is what the Big View tab of the DracalView software is for. It is suggested to start with choosing to display units and aliases in Big View. Then, change the alias of the channel or channels to display.   […]
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Logging Tab: Customizing How to Log Data

Tutorials
In the Logging tab of DracalView, you can simply click on the ‘Select All’ button to log all channels in the ‘Sources’ inset. Otherwise, choose the ones you are interested in. Then, knowing that the default format of the file that will be generated is a .csv, you can adjust some parameters in the ‘Output […]
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Configuration Tab: Customize Your Data

Tutorials
With the Configuration tab, your experience with DracalView will be simplified to allow you to acquire data according to your usual standards. There is a drop-down menu for each type of measurement, which allows you to change the units displayed in the Sources tab, the software dashboard. You can also change the sampling rate, which […]
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Sources Tab: DracalView’s Dashboard

Tutorials
Sources is the home tab of DracalView. It is where you can adjust the settings for the various channels, including giving them a customized aliases. If your device is calibratable, you will see the ‘Calibrate’ button next to the channel, making it easy to do a 3-point calibration by the user. At the bottom, the […]
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How to Create New, Custom Channels, From Live Data

Tutorials
The  DracalView software allows one to generate new channels from the channels already available from the Dracal Technologies USB sensors. The expression to designate a given channel is, between square brackets, the unique ID of the channel, as shown in the sensor inset, for instance [E21170:00]. Math channels can be used as any other channel […]
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User-Calibration – Best Practices

Tutorials
A 3-point calibration of Dracal Technologies USB sensors can be performed using our application DracalView. The first step is to ensure a stable reading at any calibration point chosen. Using Graph View is an efficient method to visually ascertain that. To calibrate the sensor, click on the Calibrate button next to the channel, then enter […]
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User-Calibration – Quick Tour of DracalView Feature

Tutorials
Dracal Technologies offers sensors that can be optionally calibratable by the user. They are recognizable with the suffix -CAL added to their names. For example, a USB-TRH320-CAL. To calibrate a device, there needs to be a reference instrument measuring the same parameter. In DracalView, user-calibration simply starts by clicking the Calibrate button in front of […]
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Plug & Log – How to Setup Dracal Technologies DAQ System

Tutorials
Dracal USB sensors are ready to be used upon arrival. The only steps to follow are to unpack it, to connect the wires and to download the free software. An unlimited number of Dracal sensors may be used simultaneously with the software. DracalView’s opening tab is titled Sources and provides the following information: the name […]
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3 Tips about Dracal User-Calibration Mechanism

Blog
Presentation of 3 tips concerning the management of calibration points in our graphic software. They concern the accessibility of raw data, the display of calibration buttons and the activation/deactivation of points without deleting them.
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Using Dracal Sensors with Almost any Programming Language

Tutorials
All the products supported by our DracalView data logger, in fact all our USB sensors, can be readily used from a variety of programming language by programmatically invoking a simple command-line tool and processing its output. This page demonstrates how this can be done in a variety of programming languages. 1) Prerequisites 2) Using dracal-usb-get […]
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LabView

Using Dracal Sensors within LabVIEW

Tutorials
1) Presentation 2) Requirements 3) Identifying your sensor(s) 4) Obtaining the channel ID for the data you need 5) Executing an external program from LabVIEW 6) Other considerations 1) Presentation This page presents a simple method for using Dracal Technologies sensors within LabVIEW, a popular platform developed by National instruments which, thanks to its simple […]
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Linux

Using Dracal Sensors under Linux

Tutorials
1) Obtaining the sources 2) Compiling the command-line tool dracal-usb-get 3) Using dracal-usb-get and dracal-usb-cal 4) Compiling DracalView 5) Common issue: Access permissions 1) Obtaining the sources At the moment, the linux version of the tools is only distributed as source code. They can therefore be compiled and used regardless of the Linux distribution (eg: […]
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