Active Summing Load Cell Junction Box JBA

JBA Junction Box Active

  • Sums the outputs from up to 4 x 350 -1,000 O hm strain gauge load cells
  • Individual gain adjustment provided for each channel
  • Wide input range - from 0.5 to 20 mV/V
  • No interaction between channels during calibration
  • No interaction between offset and gain
  • Waterproof to IP656 NEMA4

This active summing load cell junction box JBA is an active summing junction box for up to four load cells.

The JBA has an active summing junction circuit that accepts inputs from any strain gauge based sensor (load cell, force sensors, pressure sensor, torque sensor) and applies individual gain adjustment before combining them to provide a calibrated and summed output.

For a simple summing circuit with no trimming and no corner compensation, use the passive load cell junction board, model JPP and for fault monitoring and fault detection alarm features, use the , LCI load cell junction box with fault monitoring alarm.

    JBA
    Powering from 10V nomial excitation
    Maximum current  20mA 
    Connection  6 wire from instrument to JBA. 4 wire from JBA to each Strain Gauge 
    Gain setting per channel  Variable from 0.2 to 1.0 by use of switch and potentiometer, see JBA Product Sheet 
    Note:
    Each Strain Gauge is added, therefore the output is the summeration of all the Strain Gauges connected, eg: 4 x 2mV/V Strain Gauges will give an output of 8mV/V when set to x 1 20mV/V (nominally 200mV)
    Maximum input voltage 90 day accuracy stability ±0.06% gain
    Effect of temperature  ±0.02% per degree C typical at 2.5mV/V
    Field terminals  35 degree screw operated cage clamp type 
    Maximum cable  size 2.5mm square 
    Environmental
    CE Environmental Approvals European EMC Directive 2004/108/EC, Low Voltage Directive 2006/95/EC

    DIMENSIONS-See Downloads Tab and Select JBA Instructions

    Q: What is the maximum current for the JBA?

    A: 20 mA

    Tech. Tip: Hover and Click on any of the icons below.
    The model JBA is supplied pre-mounted in a IP65 NEMA4 ABS housing but is also available as a PCB module JPA.
    For alternative housings, select model JPA and then select the desired housing from the list below.
    JBA- Factory mounted in an IP65 NEMAA4 ABS housing.
    JPA - Junction Box Active (PCB Board Only)
    The model JBA is supplied pre-mounted in a IP65 NEMA4 ABS housing .
    For alternative housings, select model JPA and then select the desired housing from the list below.
    D3 Case with DIN Rail Mounts
    LAB ABS IP65 Case with Plain ABS Lid 200 x 120 x 75mm
    LSS Stainless Steel IP65 Case with Stainless Steel Lid 220 x 160 x 90 mm
    LDC Die Cast IP65 Case with Die Cast Lid 220 x 120 x 80mm
    • JBA Junction Box Active
    $228.20
    $228.20
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