520 Digital Indicators

  • 520 Digital Indicators

520 Digital Indicators

Rice Lake IQ Plus 520 Scale Indicators

IQ Plus 520 Scale Indicators are a compact and economical solution for process control and batching functions. They are the only programmable scale indicators with a counting scale function. Their compact panel mount enclosure conserves space in control panels and other custom system designs, allowing convenient rear access for connections and maintaining a NEMA 4X/IP67 seal to protect electronics.

Download the 520 IQ Plus Brochure.

Notable Features

  • 0.75" (19 mm), seven-digit Vacuum Fluorescent Display (VFD)
  • 16-character 0.25" (6.3 mm) VFD prompting display
  • Eight configurable operator prompts
  • Three digital inputs and four digital outputs
  • Selectable A/D measurement rates up to 120/second
  • Two communication ports: EDP port-full duplex, RS-232 and RS-485; Printer port-full duplex, RS-232 or 20 mA current loop
  • Five programmable ticket formats for Gross, Net, Setpoints, Count, and EDP format
  • 8 setpoint kinds
  • Programmable stream print format
  • Time and date
  • Pushbutton or scrolled tare entry Over/accept/under check weigh mode
  • Front panel or serial configuration/calibration
  • 5-point linearization calibration
  • Millivolt calibration
  • Gravitational compensation calibration
  • Power for eight 350 ohm load cells or sixteen 700 ohm load cells
  • Expansion port for option card
  • Key functions: zero, gross-net, tare, units, print
  • The desktop model with panel mount kit can be mounted in existing UMC2000 cutouts
  • Request
  • Specifications
  • Services

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Power Line voltages:115 or 230 VAC
Power consumption: 200 mA @ 115 VAC
160 mA @ 230 V AC
Frequency: 50 or 60 Hz
Excitation Voltage 10 VDC, 8 x 350 ohm or 16 x 700-ohm load cells
Analog Signal Input Range 0.3 mV/V - 4 mV/V
Analog Signal Sensitivity 0.3 ¼V/graduation @ 7.5 Hz,
1.5 ¼V/graduation @ 120 Hz
A/D Sample Rate 7.5 - 120 Hz, software selectable
Resolution Internal resolution: Approximately 8 million counts
Display resolution:100,000 dd
System Linearity 0.01% of a full scale
Circuit Protection RFI, EMI, ESD protection
Update Rate 60 times/seconds
Serial Output EDP port: Full duplex RS-232 or RS-485
Printer port: Full duplex RS-232 or active 20mA
current loop output, 2 wire
Both ports: 300 to 19,200 bps; 7 or 8 data bits;
even, odd or no parity
Display Vacuum Fluorescent Display (VFD), 7-digit,
14-segment primary weight display. 2 character
unit descriptions
16-character dot matrix display for additional
symbols, user prompts
Keyboard 5-key membrane panel, tactile feel
Digital I/O Digital inputs: 3 inputs, TTL or switch closure, active-low
Digital outputs: 4 outputs, current limited with TTL pull-up
Operating Temperature Legal: 14°F to 104°F (-10°C to 40°C)
Industrial: 14°F to 122°F (-10°C to 50°C)
Weight 6 lb (2.7 kg)
Approvals NTEP - certified at 10,000 Divisions, Class III/IIIL,
CC# 01-087
Measurement Canada approved, AM-5425;
Class III/III HD at 10,000 divisions
OIML at 10,000 divisions (GB-1160)
Desktop CUL listed
Panel mount RU recognized
CE marked
Warranty Two-year limited warranty

Every service under one roof

At Interweigh Systems, we strive to keep your weighing equipment operating at peak performance by providing the most comprehensive range of services available in the industry today.

 Our Premier Services include:

Scale Calibration

Mass Calibration

Legal For Trade

Scale Repair

Truck Scale Repair & Calibration


Interweigh Systems Inc. provides the highest quality Mass and Scale Calibration services, as well as Legal For Trade certification of scales governed by the standards and testing of Industry Canada under the Measurement Canada approval process. Interweigh Systems Inc. is ISO/IEC 17025:2017 accredited as a calibration laboratory by the Standards Council of Canada for specific calibrations as listed on http://www.scc.ca/en/search/palcan/Interweigh