Page A-1
APPENDIX A: SPECIFICATIONS
ANALOG SPECIFICATIONS
Full Scale Input Signal
30mV, including dead load
Minimum Sensitivity
1.0
µ
V / grad
Input Impedance
30M
Ω
, typical
Internal Resolution
Approximately 150,000 counts
Display Resolution
50,000 display division max
Measurement Rate
10 Meas/sec, nominal
System Linearity
Within 0.02% of FS
Calibration Method
Software Calibration, with long term storage in EEPROM
Excitation Voltage
+5 VDC, 4 x 350
Ω
load cells
DIGITAL SPECIFICATIONS
Microcomputer
Winbond W78E58
Program Memory:
32K x 8, internal to
µ
C
SRAM
256 x 8, internal to
µ
C
EEPROM:
256 x 8, external to
µ
C
Digital Filtering
Software selectable
SERIAL COMMUNICATIONS
Serial Port
Full Duplex, 1200, 2400, 4800, 9600 Baud
8 data bits, no parity, 1 stop bit
7 data bits, odd parity, 1 stop bit
7 data bits, even parity, 1 stop bit
7 data bits, no parity, 2 stop bits
OPERATOR INTERFACE
Display
0.75" (19 mm) 7-segment, Liquid Crystal, 6-Digit
Additional Symbols
Net, Gross, Stable, Tare, lb, kg, Zero
Keyboard
5-key flat membrane panel
POWER
Rechargeable Battery
6 VDC, 3.0 Ah lead acid
AC Adapter
12 VDC, 800 mA
DC Power Consumption
55 mA + 15 mA/350
Ω
Load Cell
ENVIRONMENTAL
Operating Temperature
-10° to +40
°
C
Storage Temperature
-25° to +70
°
C
MECHANICAL
Overall Dimensions (with stand)
10.4” x 7.5"x 2.9” (265 mm x 191 mm x 73 mm)
