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Category Archives: Data Logger

Data logger products and how to use them.

What You Really Need to Know About Sample Rate

Data Acquisition > Software > WinDaq By and large discussions of sample rate are like watching paint dry. Do we really have to get into the details? After all, everyone knows that you only need to sample at twice the frequency of your signal of interest to get good results, right? If you answered “right!” Read More

Bandwidth and DI-8B/DI-5B Series Signal Conditioning Modules

Data Acquisition > Mixed Measurements Suppose you’re browsing the DATAQ web site looking for a DI-8B series, analog voltage module to acquire a 10V peak-to-peak, 100Hz waveform. You come across the DI-8B31-02. It’s an analog voltage module; it has a full scale measurement range of ±5V, perfect. Not so fast! The DI-8B31-02 has a bandwidth Read More

USB or Ethernet: Which Do I Choose?

Data Acquisition > USB or Ethernet When deciding between a USB and Ethernet interface, it’s important to weigh the advantages and disadvantages of both. In this application note I’ll outline the benefits (and drawbacks) of each interface; helping you to choose the best product for you’re application. When it comes to an instrument with a Read More

USB-to-Ethernet Adapters

Data Acquisition > Ethernet USB-to-Ethernet adapters make it possible to connect a DI-720/730 EN-B product to your PC via USB 2.0. These affordable, easy to install adapters are ideal for customers who either don’t have an available Ethernet port or are more comfortable connecting via USB. Installation takes 60 seconds or less and once installed Read More

4-20 mA Current Loop Data Acquisition

Data Acquisition > Current One of the most common industrial measurements is 4-20 mA current loop data acquisition. Electrical noise, present in most industrial settings, makes measuring a sensor/transducer output as a voltage impractical—especially over long distances. The solution is to transmit the sensor/transducer output as a current signal (process current). This is achieved by Read More

How To Connect and Calibrate Thermocouples Using DI-8B47 Series Amplifiers

Data Acquisition > Thermocouple Thanks to the American National Standards Institute (ANSI), thermocouple wire is color coded to indicate thermocouple type and polarity. This takes the guesswork out of connecting thermocouple wires to your DI-718B, DI-718Bx, or DI-788. In this example, we’ll show you how to connect and calibrate a K-type thermocouple using a DI-718B, Read More

Six Ways To Deploy Model DI-71X Ethernet Data Loggers and Data Acquisition Systems

Data Acquisition > Ethernet Introduction Of all the ways you can connect a data logger or data acquisition system to a PC, none is more flexible, or offers more exciting possibilities than Ethernet. This application note explores six approaches to deploying Ethernet versions of our DI-71X Data Logger products (DI-710, -715B, -718B). I hope that Read More

IP Address Configuration for DI-71X-E Data Loggers

Data Acquisition > Ethernet DI-71X Ethernet data loggers and WinDaq Data Acquisition software make data acquisition over any network a snap. You can access your DI-71X Ethernet device over a local area network, remotely over a sub-network through a router or even over the internet! In this application note I’ll outline the basic networking principles Read More

Offset Compensation Using WinDaq Software

Data Acquisition > Software > WinDaq In the real world, transducers can exhibit some initial offset. This fact often times is discovered in the field when, given the conditions of a “resting state,” we expect that it will produce an output of zero volts. It is quite natural to expect a transducer to behave this Read More

How Much ADC Resolution Do You Really Need?

Data Acquisition or Data Logger You just bought a data logger or data acquisition system with a 14-bit ADC (analog-to-digital converter.) What exactly does that mean? Could you have gotten away with a 12-bit product? A 10-bit? Did you gaffe and really need a 16-bit data logger? You know that a higher “bit” number is Read More