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Tri-Color Circular Bargraph Meters – Weschler


The Weschler Instrument TriColor BarGraphs provide the quickest way to spot problems in process control panels with bright changing colors. Each 50 segment LED (Light emitting diode) of the BG TC family has the ability to illuminate as Red (Danger), Yellow (Caution), or Green (Safe) condition. The bar color identification can be changed by the user, from the front pushbuttons or through a tamper safe mode.

The Weschler BG Series Circular BarGraphs are BG241TC, BG261TC and BG281TC. The panel footprint, shape and mounting meets direct retrofit applications for 4½” and 8¾” switchboard meters, as well as 8″ pressure gauge meters. The electronics housing remains the same. Quick identification of trouble conditions can help prevent equipment damage or production loss, thus reducing down time and maintenance costs, and improving operational safety. The fully programmable Weschler BG TC BarGraph™ fits the widest range of inputs and retrofits most edgewise switchboard and panel meters. These instruments satisfy the high quality standards set forth by the utility, OEM, and process control industries.


  • Large, high resolution 50 segment LED bar array
  • 5 digit display with resolution to 0.01%
  • Form C relay outputs
  • Peak and Valley hold
  • Trend indication for signal direction
  • RS-232 or RS-485 Communication
  • Analog retransmit

Versatile selection of inputs:

  • DC – Up to 5A & 250V
  • AC – Up to 5A & 250V
  • Thermocouple – J, K, T
  • RTD – 10ohm Cu or 100ohm Pt
  • Serial – ASCII
  • Frequency – Line or mag pickup
  • Process Control – V, mA

Field programmable functions include:

  • Zero and full scale point location
  • Setpoint type (Hi or Low)
  • Hysteresis & latching Setpoint time delay
  • 16 step dimming
  • Digital display for engineering units
  • Enable/disable front buttons
  • I.D. selection for communication
  • Bar form, Peak / Valley enable
  • Color zones
  • Over-range/Under-range flashing, Lamp test.

Retrofit sizes for:

  • GE/Yokogawa AB/DB 40, 4 1/2” and AB/DB 16 8 3/4 ” switchboard meters
  • Crompton 075/07, 4 1/2″ and 8 3/4″ switchboard meters
  • Ashcroft, Heise 8″ gauges
  • Dixson BW051/P
  • Weschler K241, K261

Use the configuration tool to select model and options for the BG-241TC, BG-261TC and BG-281TC.

Tricolor_Circular_Data Sheet                            Bargraph_Input_Matrix

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Tri-Color Circular Bargraph Meters  – Weschler

Reset Form
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Tri-Color Circular Bargraph Meter
Circular Bargraph Meter
Circular Bargraph Meter
Bar Zero Point
Digital Display
Setpoint Relays
Sepoint Hysteresis
Input Type
Full Scale Input Level
Values above 250V use external resistor (attached to meter).
Requires setpoints.
For more than one option select "Special" & note option separately.
Bar Color
Product #: