PRO-BAR Series Large Bar Graph Process Display

Large-Size Bar Graph for Long Distance Viewing


Standard Features

  • 50-segment bargraph display
  • 251 mm (10") scale length
  • Bright, wide-angle, red LEDs
  • Accepts 4-20 mA or 0-10 V process signals
  • Units of measure window
  • Polycarbonate case sealed to IP65 (NEMA-4) on all sides
  • Detachable screw-terminal connectors
  • Universal 95 to 265 Vac power
  • EM certified (CE Mark)


  • Vertical or horizontal bargraph orientation
  • Panel mount, wall mount, or suspension mount
  • 11 to 30 Vdc power

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
Power Supply
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

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