LCD Digital Bargraphs
Description
LCD Digital Bargraphs are devices that measure and display process and electrical variables such as pressure, flow, temperature, speed, current, and voltage. They use liquid crystal display technology to present data digitally, typically through vertical or horizontal segments that indicate the degree of information displayed.
Working Principle
LCD Digital Bargraphs operate by using liquid crystals to modulate light and display information. The liquid crystals are aligned in such a way that they can either block or allow light to pass through, creating visible segments on the display. This technology is particularly useful because it allows for clear and precise representation of data, making it easy for users to quickly assess the status of the measured variables. The ability to present data in a digital format with clear visual indicators makes LCD Digital Bargraphs valuable tools for monitoring and control in various settings.
Applications
LCD Digital Bargraphs are used in a variety of specific applications. They are commonly found in industrial settings where monitoring of electrical and process variables is critical. For example, they can be used in manufacturing plants to monitor the flow rate of liquids or gases, ensuring that processes remain within specified parameters. They are also used in electrical substations to display voltage and current levels, helping to maintain the stability and safety of power distribution systems.
Advantages over other Digital Bargraphs
LCD Digital Bargraphs offer several advantages over other types of digital bargraphs, such as LED bargraphs. They are very battery efficient and easy to read at all angles, which makes them suitable for applications where power consumption and readability are important considerations. Additionally, LCD displays are easy on the eyes, reducing strain during prolonged use.
Limitations
Despite their advantages, LCD Digital Bargraphs have some limitations. They have a slow refresh rate and limited graphics capabilities, which can be a drawback in applications requiring rapid updates or complex visualizations. The color options are also limited, and they require external lighting in low-light conditions, as they do not emit light themselves. Furthermore, they have a limited temperature range and may not function effectively in cold environments.
Considerations
When considering the use of LCD Digital Bargraphs, several factors should be taken into account. Initial costs can vary depending on the complexity and features of the device. Operating expenses are generally low due to their energy efficiency, but the need for external lighting in dark environments can add to the cost. Durability is generally good, but the limited temperature range should be considered in environments with extreme conditions. Accuracy is typically high, making them reliable for precise measurements. Replacement and maintenance costs are usually low, but it is important to ensure that the device is compatible with the specific requirements of the application to avoid additional expenses related to modifications or replacements.
from Global Digital Instruments LLC
Dual Gauges combine a 10-Segment LED meter with an LCD Hour meter for a compact, cost-effective solution for monitoring all types of equipment. The top window LED bar can display battery status, fuel level, or voltage. Both the LED and LCD are capable of delivering messages to the user, either by... [See More]
- Display Technology: LED; LCD
- Voltage Range: 12 to 48
- Display Colors: Red
- Current Range: 0.0032 to 0.0150
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]
- Display Technology: LCD
- Input Type: DC Voltage; DC Current; Strain Gauge; Temperature
- Analog Input Channels: 1
- Outputs: Analog; Serial Communications; Relay
from OTEK Corporation
Programmable Intelligent Controllers with bargraph digital LED or LCD display. [See More]
- Display Technology: LCD
- Bargraph: End Scale Zero
- Display Colors: Green
- Analog Input Channels: 2
from EarthLCD, a division of Earth Computer Technologies, Inc.
Specifications. Full ezLCD Command Set. 10.4" 640x480, 18 bit Color TFT LCD, capable of 242,144 simultaneous colors. 400 Nits. Integrated Resistive Touch Screen. Embedded LCD Controller. Full Speed USB 2.0 Interface 480Mbits/s (via USB connector). Serial (true-RS232), I2c Interface, and SPI. [See More]
- Display Technology: LCD
- Bargraph Orientation: Vertical (optional feature); Horizontal (optional feature)
- Display Colors: Multi
- Outputs: Serial Communications
from PG Drives Technology Inc.
Compatible with the i-Drive, C3, Trio+ and Sigmadrive controllers, the PGDT iGauge features a large graphical LCD to present battery status, hour counters and comprehensive diagnostic information in an intuitive, logical manner. Features: Fits 52mm diameter cut out. Large backlit LCD display. [See More]
- Display Technology: LCD
- Bargraph Orientation: Horizontal
- Display Colors: Green
- Outputs: Serial Communications
from OTEK Corporation
Programmable Intelligent Controllers with bargraph digital LED or LCD display. [See More]
- Display Technology: LCD
- Bargraph: End Scale Zero
- Display Colors: Blue
- Analog Input Channels: 2
from EarthLCD, a division of Earth Computer Technologies, Inc.
PM-ezLCD-101 Specifications: Full ezLCD Command Set. 10.4" 640x480, 18 bit Color TFT LCD, capable of 242,144 simultaneous colors. 400 Nits. Integrated Resistive Touch Screen. Embedded LCD Controller. Full Speed USB 2.0 Interface 480Mbits/s (via USB connector). Serial (true-RS232), I2c Interface, and... [See More]
- Display Technology: LCD
- Bargraph Orientation: Vertical (optional feature); Horizontal (optional feature)
- Display Colors: Multi
- Outputs: Serial Communications
from PG Drives Technology Inc.
The Sigmagauge LCD is a highly versatile vehicle display, which can be easily configured and customized to meet OEM requirements. The backlit, dot-matrix display receives its information via CANbus, and presents vehicle status and diagnostic information to the operator using a graphic icon system. [See More]
- Display Technology: LCD
- Bargraph Orientation: Horizontal
- Display Colors: Green
- Outputs: Serial Communications
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]
- Display Technology: LCD
- Bargraph: Center Zero
- Display Colors: Green
- Bargraph Orientation: Vertical
from EarthLCD, a division of Earth Computer Technologies, Inc.
Specifications. Full ezLCD Command Set. 3.5" 320x240, 24 bit Color TFT LCD. 350 Nits. Integrated Resistive Touch Screen. Embedded LCD Controller. Full Speed USB 2.0 Interface 480Mbits/s (via USB connector). RS232 TTL, and SPI. Integrated MicroSD/MMC (Secure Digital/MultiMedia) Memory Slot!. High... [See More]
- Display Technology: LCD
- Bargraph Orientation: Vertical (optional feature); Horizontal (optional feature)
- Display Colors: Multi
- Outputs: Serial Communications
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]
- Display Technology: LCD
- Bargraph: Center Zero
- Display Colors: Green (optional feature); Red (optional feature)
- Bargraph Orientation: Vertical
from EarthLCD, a division of Earth Computer Technologies, Inc.
Specifications. Full ezLCD Command Set. 6.4" 640x480, 18 bit Color TFT LCD, capable of 242,144 simultaneous colors. 250 Nits. Integrated Resistive Touch Screen. Embedded LCD Controller. Full Speed USB 2.0 Interface 480Mbits/s (via USB connector). Serial (true-RS232), I2c Interface, and SPI. [See More]
- Display Technology: LCD
- Bargraph Orientation: Vertical (optional feature); Horizontal (optional feature)
- Display Colors: Multi
- Outputs: Serial Communications
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]
- Display Technology: LCD
- Analog Input Channels: 1
- Display Colors: Green
- Input Type: DC Voltage; DC Current
from EarthLCD, a division of Earth Computer Technologies, Inc.
7" TFT 800x480. 18 bit Color TFT LCD(262,144colors). 300 Nits LED Backlight. Integrated Resistive Touch Screen. Dedicated LCD Controller Chip. USB,SPI,RS232 Interface. 3.8 MB +SD to 2G Memory. LUA Scripting Language Capable [See More]
- Display Technology: LCD
- Bargraph Orientation: Vertical (optional feature); Horizontal (optional feature)
- Display Colors: Multi
- Outputs: Serial Communications