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InterfaceWebinarWednesday
IndicatorTechnology
with Keith Skidmore & Ken Bishop
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.
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.
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.
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.
Hybrids
Hybrids
What questions should
you ask yourself about
your application, that
will help you choose the
best instrumentation?
You need a
Signal Conditioner.
SGA
Indicator Technology
You need a
PC Interface Module.
INF-USB2
Indicator Technology
Get ready for a video…
You need an
Indicator.
480 with JB104SS
Indicator Technology
You need a
Hybrid Device.
9860 with Software
Indicator Technology
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
Get ready for a video…
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
Indicator Technology
Indicator Technology
Questions?
ThankYou!

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Indicator Technology

  • 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. 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. 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. 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.
  • 8. What questions should you ask yourself about your application, that will help you choose the best instrumentation?
  • 9. You need a Signal Conditioner. SGA
  • 11. You need a PC Interface Module. INF-USB2
  • 13. Get ready for a video…
  • 16. You need a Hybrid Device. 9860 with Software
  • 18. 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
  • 19. Get ready for a video…
  • 20. 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