Specifications - Rice Lake 520 Installation Manual

13.14 Specifications
Power
Line Voltages 115 or 230 VAC
Power Consumption 160 mA @ 115 VAC
80 mA @ 230 VAC
Fusing F1 & F2
115 VAC 2 x 160 mA TR5 subminiature fuses
Wickmann Time-Lag 19374 Series
UL Listed, CSA Certified and Approved
230 VAC 2 x 80 mA TR5 subminiature fuses
Wickmann Time-Lag 19372 Series
UL Recognized, Semko and VDE
Approved
Analog Specifications
Full Scale Input Signal ±78 mV
Excitation Voltage 10 ± 0.5 VDC,
8 x 350Ω or 16 x 700Ω load cells
Sense Amplifier Differential amplifier with
4- and 6-wire sensing
Analog Signal Input Range
Analog Signal Sensitivity
A/D Sample Rate: 7.5 – 120Hz, software selectable
Input Impedance 200 MΩ, typical
Noise (Usable Minimum
LSB) 0.3 µV p-p
Internal Resolution 8 000 000 counts @ 23 usable bits,
approximate
Display Resolution 100 000 dd
Input Sensitivity 10 nV per internal count
System Linearity 0.01% of full scale signal
Temperature
Zero ±150 nV/°C, maximum
Span ±3.5 ppm/°C, maximum
Calibration Method Software, constants stored in
EEPROM
Common Mode
Voltage ±0.8V in unbalanced condition
Common Mode
Rejection 120 dB minimum @ 50 or 60 Hz
Input Overload ± 12 V continuous, static discharge
protected
EMI/RFI Protection Signal, excitation, and sense lines
protected by capacitor bypass and
filtering elements
Optional Analog
Output Fully isolated, voltage or current
output
Voltage output: 0 –10 VDC
Load resistance:1kΩ minimum
Current output: 4–20 mA
External loop resistance: 500Ω
maximum
0.3 mV/V – 7mV/V
0.3 µV/graduation minimum,
1.5 µV/grad recommended
Digital Specifications
Microcomputer Hitachi H8/3002 main processor @
14.74756 MHz
Digital Inputs 3 inputs, TTL or switch closure,
active-low
Digital Outputs 4 Outputs, current limited darlington pair
with TTL pull-up, 40V withstand
Digital Filter Two stage software selectable: 1–256,
enhanced Rattletrap
filtering
Serial Communications
2 RS-232 ports Full Duplex, EDP and PRN ports
1 RS-485 port Full Duplex, 2 wire
1 Current Loop port Active 20mA current loop, 2 wire
All Ports: 300,600,1200,2400,4800,9600,19200
bps; 7 data bits with even or odd parity;
8 data bits with no parity; two stop bits
on transmit, one stop bit on receive
Operator Interface
Display Vacuum fluorescent display:
7-digit, 14-segment primary weight display;
Two 5x7 dot matrix digits for units,
alphanumeric entry mode designators;
16-character dot matrix display for additional
symbols, user prompts.
Keyboard 5-key membrane panel
Environmental
Operating Temperature –10 to +40°C (legal for trade
applications);
–10 to +50°C (industrial applications)
Storage Temperature –25 to +70°C
Humidity 0–95% relative humidity
Enclosure
Enclosure Dimensions
Panel Mount: 7.375 in x 3.875 in x 8.250 in
187.325 mm x 98.425 mm x 299.550 mm
Rating/Material
Panel Mount: NEMA 4x/IP65 Exterior panel surface
only Stainless Steel
Certifications and Approvals
NTEP 01-087
MC AM-5425
UL and CUL Pending
CE and OIML Pending
®
hybrid digital
Appendix 81