Indicator Technology


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Slides from Interface Indicator Technology Webinar on July 23, 2014 discussing how to choose instrumentation for your application and showcasing indicator software.

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Indicator Technology

  1. 1. InterfaceWebinarWednesday IndicatorTechnology with Keith Skidmore & Ken Bishop
  2. 2. Excitation - A wheatstone bridge based sensor, such as a load cell, requires excitation voltage to operate.The excitation voltage is typically 10V but many instruments supply lower voltage such as 2.5 or 5V. Signal - The output signal from a load cell is expressed in terms of mV output perV of excitation, at capacity. For example, a 100 lb capacity load cell rated for 2 mV/V output will have 20mV output at 100 lb, when excited with 10V. Because the output signal is directly affected by input voltage, it’s important to maintain a stable excitation voltage.
  3. 3. Signal Conditioner  Provides a stable excitation voltage to the sensor and amplifies the low level sensor signal to a high level output such as +/-5V, +/-10V or 4-20mA.  Usually includes filtering which can help reduce noise in the output signal.  Typical signal conditioners are analog devices which include no digital components.  Many data acquisition systems require high-level inputs such as +/-10V and don’t work very well with low level mV signals.  The DAQ doesn’t necessarily supply a stable excitation voltage to the sensor.  When selecting, some things to consider are power supply requirements, amount of filtering, fixed or adjustable filtering, input range, scalability and zero adjustment range.
  4. 4. PC Interface Modules  Converts the low-level mV/V sensor signal to a digital format that can be transmitted to a PC.  Popular interface modules provide USB, wireless USB or Bluetooth data transmission.  Software is normally provided and allows data display, logging and/or graphing.  Commonly used when data needs to be logged to a PC and a the customer doesn’t already have an existing data acquisition system.  Advantages over standard data acquisition is ease of use and they are normally plug-n-play.  Considerations include bit resolution, number of channels, sample rate, software features and type of output.
  5. 5. Indicators  Provides stable excitation voltage and converts the sensor signal to a digital display.  Commonly available features include analog or digital output, selectable digital filtering, peak and valley monitoring and set- point outputs.  Things to consider when selecting an indicator are internal sample rate and update rate of analog output.
  6. 6. Hybrids
  7. 7. Hybrids
  8. 8. What questions should you ask yourself about your application, that will help you choose the best instrumentation?
  9. 9. You need a Signal Conditioner. SGA
  10. 10. You need a PC Interface Module. INF-USB2
  11. 11. Get ready for a video…
  12. 12. You need an Indicator. 480 with JB104SS
  13. 13. You need a Hybrid Device. 9860 with Software
  14. 14. TEDS Self-configuring Bright 6 digit bipolar LED display 0.01% accuracy Fast, direct, scalable analog output 230 readings per second Peak and valley monitoring 4 calibration modes Excitation sense Front panel shunt and tare Remote tare
  15. 15. Get ready for a video…
  16. 16. Easy-to-use wireless data communication between a load sensor and a receiving indicator Capable of receiving multiple inputs Fully compatible will all Interface force sensors Comes calibrated, tested and ready-to-run Lasts up to 3 months using AA batteries
  17. 17. Questions?
  18. 18. ThankYou!