DC Current Digital Bargraphs

Description

DC Current Digital Bargraphs are devices used to measure and display electrical variables, specifically DC current, in a digital format. They utilize either LED or LCD technology to present data through vertical or horizontal segments, indicating the magnitude of the current being measured. These bargraphs are designed to provide a clear and immediate visual representation of current levels, making it easier for users to monitor and assess electrical systems.

Working Principle

DC Current Digital Bargraphs operate by converting the analog signal of DC current into a digital format that can be displayed visually. The device uses an analog-to-digital converter (ADC) to transform the current signal into a digital code, which is then processed to illuminate the appropriate segments on the bargraph display. This digital representation allows for precise and accurate readings of current levels. The usefulness of these devices lies in their ability to provide both a quick visual indication of current levels and detailed numerical data, which is essential for monitoring and controlling electrical systems.

Applications

DC Current Digital Bargraphs are widely used in various industrial and commercial applications. For instance, they are employed in power distribution systems to monitor current flow and ensure that it remains within safe limits. They are also used in battery management systems to track the charging and discharging currents, helping to optimize battery performance and longevity. Additionally, these devices are utilized in renewable energy systems, such as solar power installations, to monitor the current generated by solar panels and ensure efficient energy conversion.

Advantages over other Digital Bargraphs

One of the key advantages of DC Current Digital Bargraphs over other types of digital bargraphs is their ability to provide precise and real-time monitoring of DC current levels. This is particularly beneficial in applications where accurate current measurement is critical for system performance and safety. Furthermore, the digital display allows for easy integration with other digital systems, enabling advanced data logging and analysis capabilities.

Limitations

Despite their advantages, DC Current Digital Bargraphs have certain limitations. They may require external power sources to operate, which can add to the complexity and cost of installation. Additionally, their accuracy can be affected by external factors such as temperature fluctuations and electromagnetic interference, which may necessitate additional shielding or calibration.

Considerations

When selecting a DC Current Digital Bargraph, several factors should be considered. Initial costs can vary depending on the features and specifications of the device, such as the number of input channels and display resolution. Operating expenses may include the cost of power consumption and any necessary maintenance or calibration. Durability is an important consideration, especially in harsh environments, where ruggedized models with sealed front panels may be required. Accuracy is crucial for reliable measurements, so it is important to choose a device with a suitable accuracy specification for the intended application. Finally, replacement and maintenance costs should be factored into the overall cost of ownership, as these can impact the long-term affordability of the device.

9 Results
Process Indicator -- UPR900
from Dynisco

Features and Benefits. Graphical/text LCD Display with color change LED backlight on alarm (red/green). Graphical trend view of process, alarms & events as standard. Easy to use Setup Wizard. Display of differential pressure is available. USB port option for access to configuration and log... [See More]

  • Input Type: DC Voltage; DC Current; Strain Gauge; Temperature
  • Analog Input Channels: 1
  • Display Technology: LCD
  • Outputs: Analog; Serial Communications; Relay
6 in. Loop Powered LCD Bargraph -- Model LBD
from OTEK Corporation

The Innovator & Leader on Automatic Tricolor Bargraphs,now offers you the latest technology for replacement andnew applications. The New LBD Series uses a highly integratedASIC/DSP and Nanowatt microcontroller alongwith a proven software package approved and used bythe Military & Nuclear Industries... [See More]

  • Input Type: DC Voltage; DC Current; Strain Gauge (optional feature); Resistance (optional feature); Temperature (optional feature); %RH, pH
  • Display Colors: Green
  • Display Technology: LCD
  • Bargraph: Center Zero
30 Segment LED Bargraph -- AM-30
from Hoyt Electrical Instrument Works, Inc.

The AM-30 is a 30-segment 5VDC powered red, green, or amber LED bargraph in a compact DIN case (96x24mm) with a short depth (72mm/2.83"). It can be ordered in either a horizontal or vertical format. Single or dual setpoints are available as options. The setpoints are easily adjustable by the user... [See More]

  • Input Type: AC Voltage; DC Voltage; AC Current; DC Current; Single Phase AC Power; DC Power; Strain Gauge; Resistance; Single-ended Analog
  • Display Colors: Amber; Green; Red
  • Display Technology: LED
  • Bargraph: Center Zero; End Scale Zero
Field indicator Endress+Hauser RIA14-AA3B
from Automation24, Inc.

The RIA14-AA3B field display from Endress+Hauser visualises measured signals on the backlit display with 5 digits. An additional bar chart provides a quick process overview and a simple text field displays further information, such as the technical unit or the TAG. Limit violations are also... [See More]

  • Input Type: DC Current
  • Operating Temperature: -40 to 176
  • Outputs: Switch (open collector)
Level Indicators for Analogue Input Signals -- 36028C
from elobau U.S., Inc.

Circular instrument - Switching points must be specified when ordering. [See More]

  • Input Type: DC Voltage; DC Current
  • Display Colors: Green (optional feature); Red (optional feature)
  • Display Technology: LED
  • Voltage Range: 1 to 5
7 in. Loop Powered LCD Bargraph -- Model LSB
from OTEK Corporation

In 1975 OTEK introduced the World's First Loop Powered DPM. In 1979, The First Loop Powered Bargraph. In1996 the Automatic Tri-Color Bargraph and in 2004 the World's First Loop Powered Serial I/O DPM. Now OTEKbrings you the World's First Loop Powered Switchboard Style Bargraph to complement its New... [See More]

  • Input Type: DC Voltage; DC Current
  • Display Colors: Green (optional feature); Red (optional feature)
  • Display Technology: LCD
  • Bargraph: Center Zero
Process indicator Endress+Hauser RIA15-AAA1
from Automation24, Inc.

The loop-powered process indicator RIA15-AAA1 from Endress+Hauser displays 4-20 mA measured values and has a 5-digit measured value display with 7-segment bar graph and a backlight that can be activated. The display can be parameterised via keys and the display value can be scaled. The RIA15-AAA1... [See More]

  • Input Type: DC Current
  • Height: 48
  • Width: 96
  • Operating Temperature: -40 to 140
Loop Powered 4.5 Digit LCD Panel Meter -- Model LPM
from OTEK Corporation

OTEK's New LPM Series brings the latest technologyto your process! The single I.C. A/D can perform all thefunctions by itself or when the Serial I/O option is included,it can become a microprocessor based DPM with SerialI/O, Scaling, Zero Offset, Peak & Hold, Decimal Pointand more. And all Loop... [See More]

  • Input Type: DC Voltage; DC Current
  • Display Colors: Green
  • Display Technology: LCD
  • Analog Input Channels: 1
Process indicator Endress+Hauser RIA15-AAB1
from Automation24, Inc.

The loop-powered process indicator RIA15-AAB1 from Endress+Hauser displays 4-20 mA measured values and has a 5-digit measured value display with 7-segment bar graph and a backlight that can be activated. The display can be parameterised via keys and the display value can be scaled. The field... [See More]

  • Input Type: DC Current
  • Height: 81.5
  • Width: 131
  • Depth: 55.5