Rice Lake Legend 480-2A, Technical Manual

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Specifications 75
9.17 Specifications
1
Calculated based on 350

x 10 load cells, 1x I/O card, 1x Analog card, 7 segment display.
2
The indicator was tested for EMC with a 380

load cell; the maximal approved impedance is therefore 380

x 3 = 1140k

.
3
Measured during EMC tests per OIML R76-2006 (10v/m) without any digital filter in s/w; sampling rate was 4.7Hz.
4
Measured on an indicator with a simulator; the nominal zero stability of the ADC is 5 nV/°C.
5
Measured on an indicator with a simulator; the nominal span stability of the ADC is 1ppm/°C.
6-7
Based on the internal ADC specifications.
8
Based on the internal DAC 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 90 to 264 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
3
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
4
Span Stability 13 ppm/°C
5
Calibration Method Software, constants stored in EEPROM
Common Mode
Voltage AGND + 250mV V min
6
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
7
RFI Protection Signal, excitation, and sense lines
protected by capacitor bypass and
ESD suppressors
Analog Output (Optional)
Type Fully isolated, voltage or current
output,16-bit resolution.
Voltage output 0 –10 VDC
Voltage load resistance 1K

minimum
Current output 0–20 mA or 4–20 mA
Current loop resistance 1200


maximum
Digital Specifications
Microprocessor ARM Cortex M3 STM32F103ZET6
Digital Filters Adaptive Filter and Rolling Averaging
Filter; software selectable
Digital I/O (Optional)
Type Fully isolated
Digital Inputs 2 or 4 inputs, Opto isolated, 5 to 24
VDC input, active high
Digital Outputs 4 or 8 dry-contact relays
Up to 30VDC at 2A current
Serial Communications
Com 1 Full duplex RS-232
Com 2 Full duplex RS232, or output only
Active 20mA current loop.
Both Ports 1200 to 38400 bps; 7 or 8 data bits;
even, odd, or no parity; 1 or 2 stop bits
Only Com 2 can be set to stream.
Operator Interface
Display 6-digit LED display. 7-segment, 0.8 in
(20 mm) digits
LED annunciators Gross, net, center of zero, standstill, lb/
primary units, kg/secondary units, T,
PT
Keypad 7-key (19 key for Plus Model) flat
membrane panel
Environmental
Operating Temperature –10 to +40°C (legal);
–10 to +50°C (industrial)
Storage Temperature –25 to +70°C
Humidity 0–95% relative humidity
Enclosure
Enclosure Dimensions 9.5 in x 6 in x 2.75 in
24 cm x 15 cm x 7 cm
Weight 6 lb
Rating/Material 4X
Certifications and Approvals
NTEP
CoC Number 12-123
Accuracy Class III/IIIL n
max
: 10 000
OIML R76/2006-NL1-12.48
European Test Certificate TC8322
European EC Type-Approval T5692
Accuracy Class III n
max
: 10 000
Measurement Canada
Approval AM-5892
Accuracy Class III/IIIHD n
max
: 10 000
Note
•
N
A
T
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NA
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R
E
N
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E
•
O
N
W
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I G
H
T S
A N D M
E
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