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820i® Programmable Weight Indicator and Controller

820i® Programmable Weight Indicator and Controller

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820i® Programmable Weight Indicator and Controller

A Weight Indicator to Customize Your Process 

To gain a competitive advantage in today's fast-paced business environment, you need cost-effective solutions that not only optimize your processes but also provide an intelligent, flexible migration path. Introducing the 820i Rice Lake programmable weight indicator/controller. The 820i revolutionizes basic instrumentation programming, allowing for more cost-effective maintenance and programming support. Unlike many programmable indicators, the 820i features an intuitive user interface that allows the user to automate formula selection, batch start, data recovery, or any frequently used process at the press of a button. With the 820i on board, increasing the accuracy and improving the efficiency of any weighing process has never been easier. 

In any batch dosing application, it is a challenge to provide accurate, quality products, and at the same time try to reduce costs. Fortunately, there is an HMI indicator/controller that addresses this issue — the 820i. The 820i programmable indicator/controller gives you immediate access to frequently used functions such as formula selection or batch start with soft programmable keys. Configure up to 100 setpoints to operate as free, sequential, or interlocked operation; In addition, customize setpoints with triggers defined by default weights or events and actions. The 820i can weigh in batches by gross weight, net weight, percentage of the target or by time. Accurate batch weighing and consistent quality are attained by using machine learning or preact flow functions. By presetting the soft keys, fixed messages can be automatically sent to a remote screen. With open connectivity to the most popular interfaces, the 820i system integration is impeccable. Reproducibility, tighter quality control, waste reduction, system integration, increased productivity and ease of use — that is the power of 820i.


  • LCD backlit display (W x H) 4.6 in x 2.2 in

  • One small option slot and one large option slot for pluggable options

  • Weight display from 0.5 in to 0.75 in

  • Display up to two scales (scale 1, scale 2 and total)

  • Five user-defined softkeys

  • Weight or millivolt calibration with linearization and geographical compensation

  • NEMA Type 4X/IP66 stainless steel enclosure

  • Selectable A/D measurement rate up to 960/second

  • Power for 16 350-ohm load cells

  • 100 setpoints, latched or free-running

  • Multi-range/interval

  • Peak hold, rate of change

  • Audit trail tracking and Alibi™ software

  • 1,000-ID truck register for in/out weighing

  • User programmable 256 K flash memory

  • Onboard data storage 190 K

  • Downloadable programs

  • Visual programming for easily creating custom programs

  • Eight digital I/O (expandable)

  • Configurable with Revolution® software


Line voltages: 100–240 VAC
Frequency: 50-60 Hz
DC voltages: 12–24 VDC
Power consumption: 25 W

Excitation Voltage:
10 VDC, 16 x 350Ω or 32 x 700Ω load cells

Analog Signal Input Range:
-10 mV to +45 mV

Analog Signal Sensitivity:
0.3 μV/graduation minimum at 7.5 Hz
1.0 μV/graduation recommended

A/D Sample Rate:
7.5 to 960 Hz, software selectable

Internal: 8 million counts/8,000,000 23 bit
Display: 1,000,000

System Linearity:
± 0.01% full scale

Digital I/O:
Eight channels on CPU board; optional
24-channel I/O expansion boards

Communication Ports:
Two ports on CPU board support up to 115,200bps
Port 2: Full duplex RS-232 with handshaking
Port 4: Full duplex RS-232, 2-wire RS-485,
20 mA
Keyboard port hard wired
Optional dual-channel serial expansion
Channel A: RS-232, RS-485, 20 mA
Channel B: RS-232, 20 mA

Viewable area (W x H): 4.6 in x 2.2 in (116 mm x 55 mm), 320 x 156 pixel LCD with adjustable contrast
Transmissive display
Transflective display (optional)

28-key membrane panel, tactile feel

Temperature Range:
Certified: 14°F to 104°F (-10°C to 40˚C)
Operating: 14°F to 122°F (-10°C to 50˚C)

9.5 lb (4.3 kg)

NEMA Type 4X/IP66, stainless steel

Two-year limited warranty

EMC Immunity:
EN 50082 Part 2 IEC
EN 61000-4-2, 3, 4, 5, 6, 8, and 11

NTEP CC 01-088, Class III/IIL 10,000d
Measurement Canada AM-5426 Class III/IIIHD 10,000d
EU Test Certificate GB-1140
UL/cUL Listed
ROHS compliant
CE Marked

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