Bidirectional direct current measurements Display any proportional process variable Input for standard signal: 1 - 5 - 10 - 20mA - 4...20mA
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Bidirectional direct voltage measurements Display any proportional process variable Input for standard signal: 5 - 10V - 1...5 - 2...10V
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- 10 point bargraph display – NEW: colour: red or green, selectable via decode switch
- minimum installation depth: 30 mm without plug-in screw terminal
- adjustable via HEX switch and push-button
- pre-adjusted input for standard signals 0-10 V and 0/4-20 mA
- free adjustment on the input signal
- 8 different display types adjustable as bar, dot/point or curtain
- free choice of direction and display of centre (e.g. bars starting from the middle of display)
- control of bightness level in stages
- protection class IP65
- plug-in terminal
- optional: switchable colours green/orange, blue/red
| Datasheet |
- 30-point bar graph – NEW: selectable color red or green via coding switch
- Low installation depth: 60 mm without pluggable screw terminal
- Parameter setting via HEX switch and push buttons
- Factory pre-adjusted input for standard signals 0 to 10 V and 0/4 to 20 mA
- Free adjustment of the input signal possible
- 8 different display modes configurable: bar, dot/point or curtain
- Selectable direction and center display (e.g. bar expanding from the center)
- Stepwise brightness adjustment
- Front protection class IP65
- Pluggable screw terminal
- Optional: switchable colors green/orange, blue/red
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Datenblatt
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- 30-point bar graph with 3-digit LED display
- Measuring range: -199 to 999
- Inputs for high voltage and current (up to 300 V / 1 ADC)
- 2 relay outputs (changeover contacts)
- Analog output: 0/4–20 mA or 0–10 V
- Power supply: 100–240 VAC or DC ±10 %
- Front keypad operation, protection class IP65
- Functions: alarms, totalizer, averaging, mathematical functions
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| User Manual |
- 30-point bar graph with 3-digit digital display
- Measuring range: -199 to 999
- Inputs: 0/4–20 mA, 0–10 V and digital input
- 1 or 2 relay outputs (changeover contacts)
- Optional: analog output or RS232/RS485 interface
- Power supply: 100–240 VAC or 10–40 VDC
- Front keypad operation, protection class IP65
- Integrated sensor supply
- Functions: alarms, totalizer, averaging, mathematical functions
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User Manual
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- 10-point bar graph indicator for DC signals
- Measuring range: scale 0...100
- Inputs: 0/4–20 mA or 0–50 V
- Adjustment via front potentiometer
- Selectable bar or dot mode (jumper)
- Power supply: 24 VDC (galvanically isolated)
- Compact design: 48 x 24 mm
- Optional: front protection IP54/IP65
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Datasheet
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User Manual
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- 20-point bar graph indicator for DC signals
- Measuring range: scale 0...100
- Inputs: 0/4–20 mA or 0–50 V
- Adjustment via front potentiometer
- Selectable bar or dot mode (jumper)
- Power supply: 24 VDC (galvanically isolated)
- Compact design: 72 x 24 mm
- Optional: front protection IP54/IP65
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Datasheet
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User Manual
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- 5-digit digital display with 55-point bar graph
- Measuring range: -19,999 to 99,999
- Inputs: 0/4–20 mA, 0–10 V and digital input
- 2 relay outputs (galvanically isolated)
- Optional: analog output and RS232/RS485 interface
- Power supply: 100–240 VAC or 10–40 VDC
- Front keypad operation, protection class IP65
- Integrated sensor supply
- Functions: alarms, totalizer, averaging, mathematical functions
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Datasheet
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User Manual
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- 5-digit LED display with 270° bar graph
- Measuring range: 0 to 99,999 pulses
- Inputs for NPN/PNP, Namur and TTL signals
- 2 relay outputs for limit monitoring
- Optional: analog output (0/4–20 mA or 0–10 V) and RS232/RS485
- Frequency measurement up to 999.99 kHz
- Power supply: 100–240 VAC or 10–40 VDC
- Front keypad operation, protection class IP65
- Integrated sensor supply
- Advanced software functions (alarms, filtering, averaging, totalizer)
| Datasheet |
| User Manual |
Digital Bar-Graph Panel Meters
Digital bar-graph panel meters are electronic display instruments that visualize measurement values using a row of LEDs instead of a numeric readout. The illuminated bar represents the magnitude of the input signal — such as voltage, current, temperature or other process variables — allowing operators to interpret trends, levels and changes at a glance. These devices are ideal for quick visual monitoring and are commonly used in industrial control and automation systems.
F&A
What is a digital bar-graph panel meter?
A digital bar-graph panel meter displays an input value using a sequence of LEDs arranged vertically or horizontally. The number of illuminated segments increases as the measured value rises, providing an immediate visual indication rather than a numeric reading.
Which measurement values can be displayed?
Depending on the model, bar-graph meters can show voltage, current, temperature, process signals (e.g., level, pressure, flow) or any other analog measurement that can be converted into a proportional input signal.
How does a bar-graph meter work?
The input signal is conditioned and digitized, then processed by an LED driver circuit. According to the measured value, a proportional number of LED segments are activated, forming a bar that represents the signal magnitude.
What are the advantages of bar-graph displays?
They allow extremely fast recognition of trends or deviations, offer excellent visibility for relative values, and are resistant to vibration or mechanical shocks. Color-coded segments (e.g., green/yellow/red) can also provide intuitive visual warnings.
Where are digital bar-graph meters used?
They are used in control panels, industrial process monitoring, energy distribution systems, generator and motor supervision, tank level monitoring, control rooms and any application requiring fast visual feedback.
Which display and output options are available?
Devices may include single-color or multi-color LED bars, additional numeric displays, relay outputs, analog outputs or digital communication interfaces for integration into automation systems.
What should be considered when selecting a bar-graph meter?
Important factors include the type of input signal (voltage, current, sensor), measurement range, LED resolution, number of segments, color options, panel dimensions, supply voltage and optional communication or alarm features.
When is a bar-graph meter especially useful?
It is ideal when quick situational awareness is more important than precise numeric values — for example in load monitoring, process visualization, or operator panels where real-time changes must be seen instantly.