iQUBE²® Digital Diagnostic Junction Box


  • iQUBE2 board has four A/D channels
  • Supports networking up to four boards, for 16 A/D channels; connection can be up to four separate platforms with a system total, or four separate scale systems
  • Diagnostic routines for weighing errors and system health
  • Cell tests for overloaded, underloaded, zero reference, drift, noise and unbalanced conditions
  • Onboard status LEDs for communication and visual bi-color indication of cell health
  • Cell emulator compensates for load cell failure until a repair can be made
  • Cal-Match® algorithm automatically trims and calibrates the scale in one pass of test weights (stopping over each mount)
  • Standard communications
  • Option card slot for fiber optic, Ethernet TCP/IP, wireless TCP/IP, USB or RS-232/RS-485
  • Communicates to 920i®, 1280, VIRTUi2® using ASCII (EDP) serial commands
  • Truck and railroad scales
  • Tank and hopper scales
  • Multi-channel scales

Identify Problems Before They Happen

Rice Lake Weighing Systems’ iQUBE2® digital diagnostic junction box compares the output of each load cell to adjacent load cells, ensuring optimal performance and warning operators of weight irregularities. iQUBE2 converts any analog load cell system into a modern digital system, without replacing individual load cells.

Enhance the Performance of Any Scale System

iQUBE2 is ideal for systems using single or multiple scales with two or more load cells. Floor scales, hopper scales, tank scales, vehicle scales and dosing systems can all benefit from an upgrade to the iQUBE2 digital diagnostic junction box system.

With accelerated data transfer, batching and dosing applications can efficiently achieve target weights when speed and accuracy are critical.

Instant Alerts and Cell Emulation

Diagnostics can be viewed on the user interface and an email alert is sent in the event of a component error. When a load cell fails, the cell emulation feature calculates weight based on known comparisons to functional load cells, keeping your scale functional until the load cell can be replaced.

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iQUBE² Digital Diagnostic Junction Box Specifications

Voltage Input:
115/230 VAC power supply DC/DC converter for 9 to 36V
6 to 12 V DC to CPU

Analog Signal Input Range:
-78 to +78 mV

Analog Signal Sensitivity:
0.3 uV/grad at 30 Hz
0.5 uV/grad at 100 Hz
1.2 uV/grad at 500 Hz

A/D Sampling Rate:
2.5 to 500 Hz (selectable)

Digital I/O:
Four per card, for push-button operation, setpoint control or cell status



Communication Ports:

Load Cell Inputs:
Four channels per board
up to four networked boards

Load Cell Excitation:
5 V DC, 57 mA maximum per channel

Temperature Range:
Certified: 14 °F to 104 °F (-10 °C to 40 °C)
Operating: -13 °F to 140 °F (-25 °C to 60 °C)
Storage: -13 °F to 158 °F (-25 °C to 70 °C)

Polycarbonate (NEMA Type 4X) enclosure with overlapping solid cover, stainless steel screws
Stainless steel (NEMA Type 4X) enclosure with hinged cover

Two-year limited

NTEP 03-032A1
Measurement Canada AM-5561
cULus E151461
CE Marked


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