The PRO-BAR Series provides economical, high-visibility 50-segment bargraph displays for 4-20 mA or 0-10 V process signals. The scale measures a full 251 mm (10") for exceptional visibility over long distances. A units-of-measure window allows the scale to be labeled. Scaling is by means of easy screwdriver adjustments.
The PRO-BAR housing is made of polycarbonate and can be panel mounted or wall mounted. Installation can be such that the bargraph is horizontal or vertical. The housing is sealed to IP65 (NEMA-4) from all sides.
LED bargraph meters are popular replacements for sight-glass or moving coil contact displays. With LEDs, there are no moving parts to wear, visibility is excellent, and the cost of maintenance is very low.
Bargraph meters are an ideal means to display relative values, with no need to interpret numerical data. They can be augmented by digital panel meters or large-digit numeric displays when absolute readings are required. The same process signal can be applied to bargraph and digital meters.
|Range||4-20 mA||0-10 V|
|Input resistance||22Ω||1 MΩ|
|Bias current||N/A||5 pA|
|Max input||80 mA||100 V|
|NMR, 45 to 1000 Hz||56 dB||56 dB|
|CMR, 0 to 450 Hz||70 dB||70 dB|
|Format||50 red LED segments|
|Scale length||250 mm (9.84")|
|Resolution||1 part in 50|
|Accuracy at 25°C||0.5% of full scale|
|Speed of response||100 ppm / °C|
|Warm-up time||None required|
|Calibration||Zero & span potentiometers|
|Voltage options||95 to 265 Vac or 11 to 30 Vdc|
|Power consumption||5W typ.|
|Operating temperature||-20°C to 50°C (4°F to 122°F)|
|Storage temperature.||-40°C to 85°C (-40°F to 185°F)|
|Relative humidity||0-90% RH at 40°C, non-condensing|
|Corrosion resistance||Avoid chemicals harmful polycarbonate|
|Protection||NEMA-4 (IP65) all around|
Pinout & screwdriver adjustments
Wall-mount case dimensions
Panel-mount bezel is 17 mm wider and taller than the case.
|Bezel dimensions, wall mount||309 x 94 mm (12.17" x 3.70")|
|Bezel dimensions, panel mount||326 x 111 mm (12.83" x 4.37")|
|Panel mount cutout||311 x 96 mm (12.24" x 3.78")|
|Depth behind panel||110 mm (4.33"), including connectors|
|Connectors||Detachable screw-clamp connectors|
|Datasheet, Manual, Mechanical and Serial I/O info.|
PRO-BAR Series Large Bar Graph Process Display
- Brand: Laurel Electronics, Inc.
- Model: PB
- Availability: In Stock