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EWB 639 IT (Graphic Display)

Industrial Scales

Weigh Bridge - EWB 639 IT (Graphic Display)


EWB 639 Intelligent terminal with graphic display is the state of the art weigh bridge indicator. Features include easy-to-read 20-mm LCD display that displays weight to six digits and a 16 x 2 alphanumeric display with backlight for displaying ticket data, with built in real time clock for date and time, robust construction, with in built 2 numbers RS232, 1 number Printer interface,1 number slave display, 2 numbers USB 2.0 ports, and can support up to 12 350-ohm load cells. EWB 636is ideal for public / private ownership weigh bridges.


  • 32 bit processor gives very fast operational response.
  • 24 Bit ∑-Δ high precision A/D convertor for high stability and repeatability through 25 samples per second.
  • Display size 128 x 64 pixels (1024 pixels)
  • 2Gb Data storage capacity – translates into more than 200,000 records.
  • SMPS based power supply with 2.5A fuse, line filter to clean the noise, spike suppressor and Opto-isolation of signals.
  • Multiple calibration process.
  • User and Factory password for level protection.
  • Restorable Calibration process – can be saved on print or file format enables you to recalibrate the weigh bridge without weights incase of any loss of memory.
  • Back Up facility through Pen Drive for export to PC on excel format.
  • Auto power saving facility

Technical Parameter

  • A/D conversion method: ∑-Δ
  • A/D conversion speed: 25 times/sec.
  • A/D conversion count: 1 million count
  • Load cell excitation: DC 5V
  • Max. connection number of load cell: 12 at 350 ohm
  • Load cell connection mode: 6 wire, auto compensation for long distance
  • Division: 1/2/5/10/20/50
  • Clock: real time clock with in built battery to update even on power off.
  • Transmission: current loop/RS 232 signal
  • Baud rate:600
  • Transmission Data Type: 11 bytes
  • Transmission distance:≤30 meters
  • Serial communication:interface
  • Transmission method:RS232
  • Baud rate:600/1200/2400/4800
  • Transmission Data Format: 10 bytes: 1 byte to start, 8 Data bytes (ASCII code), 1 byte to stop.
  • Transmission distance:RS232:≤30 meters
  • Standard parallel output interface
  • AC Power:AC 90 ~ 270V;50Hz(-2%-+2%)
  • Operating Temperature: 0 C to 50 C
  • Storage Temperature: -10 C to 75 C
  • Dimension: 250 x 250 x 80 mm (L x W x H)
  • Weight: 2.5 kg


  • GSM Modem connectivity For SMS Sending.
  • Wireless (Wifi) transmission for RS 232 to either drive remote display wirelessly.


Important: Flashback 1918, Essaji Gulamhusain Kantawalla, then a young entrepreneur, ventured into importing various types of weighing scales from England, France and Germany.

Corporate Office

  • E.G.Kantawalla Pvt Ltd.
    Office No. 204, P T Gera Centre,Bund Garden Road, Pune-411001, Maharashtra
  • Phone: (020) 4850 8100
  • Email: