Rice Lake 480 Legend Series, Operation Manual

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480 Legend Series Digital Weight Indicator
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3.4 Specifications
Model Numbers
United States 480-2A/480Plus-2A (NEMA Type 5-15)
International 480-2A/480Plus-2A (CEE 7/7)
Power – AC
Line Voltages 115 to 230 VAC
Frequency 50 or 60 Hz
Power Consumption 70 mA @ 115 VAC (8W)
35 mA @ 230 VAC (8W)
Fusing 2.5 A 5 x 20 mm fuse
Analog Specifications
Full Scale Input Signal Up to 35 mV
Excitation Voltage 5 ± 0.1VDC
Sense Amplifier Differential amplifier with
4- and 6-wire sensing
Analog Signal
Input Range Up to 7 mV/V
Analog Signal
Sensitivity 0.1

V/graduation minimum
0.5

V/grad recommended
Local Resistance 35-1140

Noise (ref to input) 0.5

V p-p
Internal Resolution 523,376 counts
Display Resolution 100,000 dd
Measurement Rate 37 measurements/sec
Input Sensitivity 38 nV per internal count
System Linearity Within 0.01% of full scale
Zero Stability 13 nV/°C
Span Stability 13 ppm/°C
Calibration Method Software, constants stored in EEPROM
Common Mode
Voltage AGND + 250mV V min
Excitation - 250 mV V max
Rejection 120 dB minimum @ 50 or 60 Hz
Normal Mode
Rejection 100 dB minimum @ 50 or 60 Hz
Input Overload -0.3 V to Exci0.3 V
RFI Protection Signal, excitation, and sense lines protected by capacitor bypass and
ESD suppressors