13
LEGAL FOR TRADE SEALING
Indicators can be sealed for commercial (Legal for Trade) applications as follows.
Category I Audit Trai
l: Configuration and calibration audit counters update each time a configuration or
calibration change occurs. These counters will return to zero after 1000 changes, individually. The
counters may be viewed by powering up the unit:
-
The screen will displa
y the configuration audit counter ("CF") and the calibration audit counter ("CA").
APPENDIX A: SPECIFICATIONS
ANALOG SPECIFICATIONS
Full Scale Input Signal
±
3.125 mV
/V
Minimum Sensitivity
-
Non
trade
0.
2
V / grad
Minimum Sensitivity
- H-
44
/R76
0.4
V
/ grad
Input Impedance
30M
, typical
Internal Resolution
Approximately 260,000
counts @ 2mV/V input
Display Resolution
50,000 display division max
Measurement Rate
10 Hz
System Linearity
Within 0.02% of FS
Calibrati
on Method
Software Calibration, with long term storage in EEPROM
Excitation Voltage
+
3.3
VDC, 4 x 350
load cells
DIGITAL SPECIFICATIONS
Microcontroller
PIC
Program Memory
32
K x 8,
in
ternal to C
SRAM:
512
x 8, internal to C
EEPROM:
256
x
8
, external to
C
Digital Filtering
Software selectable
SERIAL COMMUNICATIONS
Se
rial Port
Full Duplex,
selectable
Baud
rate
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
–
LED Indicators
1
" (
25
mm) 7
-
segment, L
C
D, 6 Digit
Additional Symbols
Net, Gross,
Stable, Tare, lb, kg, Zero
Keyboard
6-
key flat membrane panel
POWER
TI
-
500
(Battery)
4-
AA alkaline
(1.5 V)
or
rechargeable
(1.2 V)
TI
-
500
(AC Adapter)
Output:
6
VDC,
3
00mA Female
DC Power Consumption
1
0mA +
9
mA/350
Load Cell
ENVIRONMENTAL
Operating Temperature
–
10° to +40 C
Storage Temperature
-
25° to +70 C
MECHANICAL
Overall Dimensions (L x W x H)
–
TI
-
500
7.1
" x
2.8
" x 4.
4
" (
180
mm x
7
1
mm x 11
0
mm)
APPROVALS
NTEP
COC # 94
-
080A3
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