680 Synergy Series Digital Weight Indicator


  • LED display
  • Battery backed time and date
  • Full numeric keypad
  • Multiple communication ports
  • Eight setpoint, 22 configurable types
  • Numeric keyed entry for tare and setpoint entry
  • Formattable tickets
  • Four onboard configurable digital I/O points, TTL logic
  • Local/remote


  • Analog output: 16-bit resolution, 0-10 VDC, 0-20 mA, 4-20 mA
  • RJ45 Ethernet connector

Note: IP Rating is IP66 with RJ45 option. Rating is valid only when the cover is in place, not in use.


The Next Generation of Configurable Indicators

Rice Lake’s configurable 680 Synergy Series indicator combines powerful features found in advanced instrumentation with easy-to-use functions of more basic indicators. Designed with the customer in mind, the 680 is suitable for real-world, industrial environments. Tackle general purpose weighing, straightforward automation and a wide range of applications with the 680 Synergy Series.

Powerful Functions Backed by Advanced Communication

With eight setpoints and four digital I/O, the 680 can perform basic batching and filling operations. Design a multi-step procedure and run it automatically from beginning to end with the 680’s configurable batch engine. Users can also customize printed tickets with formattable gross, net, setpoint and auxiliary print formats. The 680 also supports multiple onboard communication options, cutting costs and providing connection to multiple devices such as printers and computers.

Durable, IP69K Construction

Constructed with durable 304 stainless steel and able to withstand harsh wash-downs, the 680 maximizes process efficiency in virtually any environment or application. An IP69K rating ensures the 680 can stand up to high-pressure, high-temperature washdowns found in food processing environments.


Guaranteed Safe Checkout

680 Synergy Series Specifications

Line voltages: 100 to 240 VAC
Frequency: 50 to 60 Hz

Power Consumption:
2W (AC) 1 × 350 ohm load cell, 15W max

Excitation Voltage:
10 VDC (± 5 VDC), 8 × 350 ohm or 16 × 700 ohm load cells

Analog Signal Input Range: 
-5 mV to +70 mV

Analog Signal Sensitivity: 
1 μV/graduation recommended

A/D Sample Rate: 
6.25 to 120 Hz, software selectable

Internal: 8,000,000 counts
Display: 1,000,000

System Linearity:
Within 0.01% full scale

Digital I/O:
Four configurable I/O – 5V logic

Communication Ports:
Two RS-232 (three-wire)
RS-485/422 (five-wire)
Micro USB (device)
Ethernet TCP/IP (10/100)

Eight LED annunciators

Seven 0.8 in tall, seven-segment digits

Flat membrane panel, tactile feel (18 buttons plus ON/OFF)

(L × W × H)
11.58 × 4.05 × 8.57 in
(294 × 103 × 218 mm)


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

IP69K (IP66 with RJ45)
AISI 304 stainless Steel

6.25 lb (3 kg)

Two-year limited

EMC Immunity:
10 V/m

NTEP CC 19-021, Class III/IIIL, 10,000d
Measurement Canada AM-6121C
OIML R76/2006-A-NL1-19.56
EU Test Certificate TC11562
cULus Listed
CE Marked


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