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E-SCALE - Hardy E-Scale IIoT-Ready Intelligent Scale

E-SCALE - Hardy E-Scale IIoT-Ready Intelligent Scale

The Hardy E-Scale Bench scale series is the world's first IIoT-ready (Industrial Internet of Things) scale base. It includes an integrated Hardy weight processor for direct network connection for EtherNet/IP® networks. Depending on configuration, the E-Scale offers complete flexibility in size and capacity for use in a wide range of weighing applications. E-Scales eliminate possible failure points and save the cost of extra splice-boxes and other components.

Complete Your System

Or call 858.278.2900 for assistance

The latest E-Scale design brings power and networking connections out to the edge of the scale for a fully plug-n-play experience for the user. With their rugged construction and stainless steel tops, E-Scales are a great fit for dry food processing, laboratory, and industrial installations. The E-Scale line of bench scales comes in a variety of configurations with a built-in interface for direct connection to a PLC, PAC, DCS, or PC. All E-Scales come standard in 12”x12” and 24”x24” sizes, and range in capacity from 33 lbs – 1300lbs (15 kg to 600 kg).

The covers are all stainless steel for durability. The bases have no bearings, spirit levels, or moving parts that can be damaged or wear out. They come standard with Hardy Process Toolbox features, including Waversaver®, C2®, Webserver, and Rockwell Automation integration tools such as Faceplates, and Add-on-profiles.


IIoT ready scale with integrated weight processing and communications. No DIN or panel space is required. The E-Scale-6500 delivers stable processed weight with a resolution of 1:10:000, and an update speed of 110 updates per second (processor, display, and comm.). Communications protocols supported include:

  • EtherNet/IP (-EIP models)
  • Ethernet UDP
  • Ethernet TCP/IP(Embedded Webserver)
  • Modbus RTU
  • Modbus TCP (-EIP models)

** User must supply 24VDC to the scale


The New E-Scale-6510 has all the great features of the E-Scale-6500 but adds an Analog 4-20 mA port. It is designed for sites that are still using Analogcommunications but plan to upgrade to EIP in the future, providing a clearly designed upgrade path.


Capable of powering up to 20 scales daisy chained up to 50 ft from beginning to end to a single Hardy HI 6600 Gateway Module. The Gateway Module provides a Single Ethernet connection back to the PLC/PAC or PC – No additional power is required! Gateway Module has an optional panel mount multichannel display that can be used to operate connected E-Scales.

HI6600 Gateway communications include:

  • EtherNet/IP (-EIP models)
  • Profibus-DP (-DP models)
  • Ethernet TCP/IP(Embedded Webserver)
  • Modbus RTU

Even in noisy environments with excessive amounts of mechanical vibration, the E-Scale-6610 provides a steady 1:10:000 resolution with 110 updates per second over its variety of communications protocols.

* Requires a Hardy HI 6600 Gateway Module

Platter Construction

  • 304 Stainless Steel (all models)
  • Size: 12 x 12: 11.75" x 11.75" or 298 mm x 298 mm; 24 x 24: 23.62" x 23.62" or 600 mm x 600 mm

Rated Output

  • 0.900 ±0.0009mV/V

Combined Error

  • 0.030 %R.O.

Creep @ 30 min

  • 0.030 %R.O.

Zero Balance

  • 5.0 % R.O.

Temp Effect Output

  • 0.0015% R.O./°F

Temp Effect Sensitivity

  • 0.0008 % R.O./°F

Comp.Temperature Range

  • -10 - +40°C

Operating Temperature Range

  • -10 - +65°C

Input Resistance

  • 297.5 ± 10% ohm

Output Resistance

  • 250 ± 5% ohm

Safe Load Limit

  • 300 % Emax

Ultimate Load

  • 400 % Emax

Max. Cornering Error

  • 0.06% 1/2 full-scale load, 1/2 way to corner


  • Stable processed weight 1:10,000
  • Maximum displayed resolution: 1:999,999
  • Internal resolution 1:8,388,608

Update Rate

  • 110 times per second (processed weight, display, communications)
  • Unprocessed weight (A/D conversion) 4800 times per second


  • Gross, Net, Count

Units of Measure

  • Ounce, Pound, Ton, Gram, Kg, Pieces

Weight Processing

  • WAVERSAVER®: .25 Hz to 7.5 Hz
  • Averaging: 1 to 255 user-selectable in single increments

Calibration Methods:

  • C2® calibration without test weights
  • Traditional calibration with test weights

Communications Interface

  • Terminal, RJ-45 (6500)
  • RJ45 / Cat5e (6610)

Optional HI 6110 Display (6610 only through Gateway Module)

  • 80:1 contrast ratio with a 4.3" effective viewing area
  • 140° viewing angle
  • Control, configure, and view one to four scales on a single front panel


  • 24 VDC from supplied power source (6500 models)
  • 24 VDC, Class 2 Source, max 3.9 Watts from HI 6600 Gateway (6610 models)


  • UL and CUL, RoHS3 and REACH


  • Two-year warranty against defects in workmanship


Platform Size

Model # - E-SCALE copy
Or call 858.278.2900 for assistance

The Hardy Process Toolbox is a set of productivity tools that support industrial weighing functions. Each tool saves time, increases accuracy, improves efficiency, or reduces risk in process weighing applications, including WAVERSAVER® to eliminate vibration, C2® electronic calibration, and Integrated Technician® to name just a few.

The E-Scale features the following Toolbox technologies:

WAVERSAVER® Vibration Eliminator

Hardy's WAVERSAVER core technology eliminates the effects that surrounding vibration has on the scale weight signal, providing only true data for fast, accurate weight reading.

E-Scale-6500-XP ONLY

Hardy's patent-pending WAVERSAVER+ patent pending adaptive algorithm selects from a bank of 7 noise filters and uses the optimum mix to provide a stable weight under static conditions.

C2® (or eCAL) Electronic Calibration

The Hardy C2®  (or eCAL as it is known in China) core feature provides quick and easy electronic calibration of a weighing system without the need for heavy test weights.


Hardy's INTEGRATED TECHNICIAN (IT) core feature helps you troubleshoot your weighing system and diagnose problems from the front of the instrument or via the PLC. These tests display system weights, voltages, and pass/fail displays to help isolate a problem to the instrument, cabling, or sensors, helping to reduce maintenance costs.

Embedded Web Server

Access your instrument from any computer browser, easing setup and making diagnostics fast and easy. Use the Embedded Web Server to set up all parameters from anywhere on the Ethernet network.