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iQUBE³ Digital Diagnostic Junction Box

  • Designed for weighing systems using the 1280 Enterprise™ Series indicator
  • iQUBE³ CPU board: Four A/D channels, SD Slot, RS232/485, four DIOs, Ethernet TCP/IP (wired), USB-C
  • iQUBE³ CPU board supports networking up to five iQUBE³ four-channel boards (four A/D channels each), for a total of 24 A/D channels; connection can be up to four separate scales and a system total
  • Diagnostic routines for weighing errors and system health
  • Additional diagnostics for overloaded, underloaded, zero reference, drift, noise and unbalanced conditions
  • Onboard status LEDs for communication and visual bi-color indication of load cell health
  • Load cell emulator compensates for a failed load cell
  • Cal-Match® algorithm automatically trims and calibrates the scale in one pass of test weights (stopping over each load cell)
  • Two option slots available

Options

  • Fiber optic
  • Analog output: 16-bit resolution, 0 to 10 VDC, 0 to 20 mA, 4 to 20 mA
  • Relay or Serial (two RS-232 or RS-422/485)
  • Bridge resistance board
Applications
  • Truck and railroad scales
  • Tank and hopper scales
  • Multi-channel scales

Approvals

Some approval documents are available to view by clicking the icons below.

NTEP Logo

WARNING: Cancer and Reproductive Harm California Proposition 65

Improve Your System with a Digital Diagnostic Junction Box
The iQUBE³ junction box provides stable weight readings for any analog load cell through its reliable digital signal. Built-in reporting for load cell status, voltages and error conditions can expedite troubleshooting to maximize system uptime.

Simplified Installation and Use
The iQUBE³ digital diagnostic junction box has an easier and faster setup compared to a traditional analog junction box. Because each load cell is individually monitored, there is immediate visibility for issues including drift, instability or a failing load cell, limiting troubleshooting time. You also gain cleaner digital signal transmission, better noise immunity and simple plug-and-play configuration, making routine scale maintenance quicker and more accurate.

Voltage Input: 
AC voltage: 100 to 240 VAC; 50/60 Hz
DC voltage: 9 to 36 VDC

Analog Signal Input Range:    
-51 to +51 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
24 mA per DIO at 5 V



Communication Ports:
RS-232/RS-422/485
USB-C
Ethernet TCP/IP, wired standard
Ethernet TCP/IP, optional wireless

Load Cell Inputs:
Connect up to 24 load cells (four, per board)

Load Cell Excitation:
3.3 VDC, 38 mA maximum per channel
Up to 24 × 350 ohm load cells

Rating/Material:
Polycarbonate (NEMA Type 4X) enclosure
Stainless steel (NEMA Type 4X) enclosure with hinged cover 

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

Warranty:
Two-year limited

Approvals:
NTEP 25-041
Measurement Canada (pending)
cULus (pending)
CE Marked (pending)

Stainless Steel
A 13.50 in (343 mm) E 8.00 in (203 mm)
B 12.28 in (312 mm) F 6.29 in (160 mm)
C 12.75 in (324 mm) G 6.20 in (157 mm)
D 10.28 in (261 mm)    
Polycarbonate Small
A 12.13 in (308 mm) E 5.98 in (152 mm)
B 11.45 in (291 mm) F 6.95 in (176 mm)
C 10.51 to 11.30 in (267 to 287 mm) G 6.71 in (170 mm)
D 9.32 in (237 mm)    
Polycarbonate Large
A 14.13 in (359 mm) E 7.99 in (203 mm)
B 13.46 in (341 mm) F 7.02 in (178 mm)
C 12.52 to 13.31 in (318 to 338 mm) G 6.79 in (172 mm)
D 11.36 in (289 mm)    

Resources/Downloads

Title Download Email
iQUBE³ Catalog Page Download Email

Title Version Revision Download Email Category Archived
iQUBE³ Digital Junction Box/1280 Enterprise Quick Start Guide A Download Email Junction Boxes|Weight Indicators|Indicators / Controllers No

Title Version Size Release Date Download Email
iQUBE³ Load Cell Board Firmware 1.00.00 123.3 KB 01/28/2026 Download Email
iQUBE³ CPU Board Firmware 1.00.00 683.8 KB 01/28/2026 Download Email
1280 Firmware (V2.09.00) 2.09.00 289 MB 01/28/2026 Download Email

Parts

AC Power Supply

Part # Description List Price Cart/Quote
227157 JBOX, Digital, iQUBE3, 4-Channel, Polycarbonate, Small, 115/230 VAC

List Price: $1,465.00

227158 JBOX, Digital, iQUBE3, 4-Channel, Polycarbonate, Large, 115/230 VAC

List Price: $1,675.00

227159 JBOX, Digital, iQUBE3, 8-Channel, Polycarbonate, Large, 115/230 VAC

List Price: $2,725.00

227160 JBOX, Digital, iQUBE3, 4-Channel, SST, 10in x12 in, 115/230 VAC

List Price: $2,673.00

DC Power Supply

Without Power Supply

Options

Part # Description List Price Cart/Quote
231373 Board Assy,CPU Board, Four-Channel With Cables and Connectors, iQUBE3

List Price: $1,200.00

227169 Board Assy, 4-Channel, iQUBE3

List Price: $950.00

227171 Power Supply,115/230VAC, 24VDC Output, FRP Enclosure, Remote Power

List Price: $473.00

230935 Indicator, iQUBE3 Bridge Resistance Card Assembly Kit

List Price: $750.00

215178 Mounting Feet, New Style Mounting feet for new style JB4SP,JB4SPT,JB4EP,JB4EPT,JB8SP JB8SPT AND iQUBE enclosures. Set of 4 and includes 10-32 screws NOT for Hoffman enclosures

List Price: $15.00

Conduit Adapter

Communication Cards

Duplex Fiber (Max Run 350 ft)

1280 Indicators for use with iQUBE3

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