Weighbridge Application "and glcd"

Basic Hardware Features

32 bit ARM processor with sigma delta type 2fl bit ADC
Front mount GLCD display 130xfl0 mm with blue backlight
SMPS power supply
On board memory to save 1 lakh records
USB ports for standard computer keyboard b pen drive
Centronics port for 80 column dot matrix printer
RS232 port for display/GSM modem/continuous transmission of current weight
Table top port for connecting external wired displays
Smart Calibration
Multi—step smartcalibration

Software Features "Weightbridge Privilege"

Simple process for weighments of tare/gross vehicle weights
10 entries in ticket for 25 haracters each
4 code banks for 100 codes each (Flexibility of setting)
Field settable header, footer, signature lines
Facility to view/print earlier saved records according to RST no / Vehicle no
Dumping of report into pen drive to avail softcopy of records (.xls)
Field settable pre—printed tickets SMS feature in 3 different ways.
Net weight printing in words

Specification

Processor : 32bit ARM Processor

Processor clock frequency : 50 MHz

Real time clock : On board battery backed RTC.

RTC Clock frequency : 32.768 KHz

Memory : On board memory to save 1 Lakh records

Power supply : SMPS power supply

Input Voltage : 90V to 270V AC @_ 50Hz

Protection :
* 750mA fuse for input AC mains
* Input line filter for EMI and RFI suppression
* Spike suppressor for input transients
* Opto - isolation of signals and 1/0s for high immunity from electricalnoise

Power Consumption : 10 VA [approx.]

A/D converter : Sigma Delta type with 2fl Bit resolution

A/D Clock : 20 Hz

Conversion Speed : Internal 25 samples per second

Load cell excitation : 8V DC with current capability to drive up to 12 load cells of 350 Ohms input resistance

Signal Sensitivity : 0.3 micro volt per division of weight (unit weight)

Display : Graphical LCD display 130X40 mm with blue blacklight

Keyboard port : 101 — key with USB connector compatible keyboard. (Recommended for use Logitech or Microsoft)

USB Port : USB Port configured for Pen Drive

Printer port : Isolated Centronics compatible printer port provided on rear panel for connecting 80-column dot matrix printer for printing of weighment record and reports.

Serial port : Isolated RS — 232 serial port is provided for continuous weight transfer

Remote Display Port : Remote display port is provided to connect optional 1/2 inch, linch, 2.3 inch or fl inch bright red LED display to indicate the weight on the platform.

Environment : Operating temperature: 0 to 55 Celsius

Humidity : up to 95% RH non —condensing