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LCA20 Intelligent Load Cell Amplifier

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The LCA20 intelligent strain gauge amplifier offers both 4 to 20mA and 0 to 10 volt analogue outputs, from any standard strain gauge input. One pass calibration and setting of the analogue output range make the unit extremely user friendly; being set up by a simple hand held or on-board programmer/display. Auto Tare and Peak Hold (if set) on the analogue output are operated via volt free contact closures, and output options include relay set points programmed in engineering units, with in flight compensation and hysteresis settings are available for control or alarm purposes.

The LCA20 features RS232 and RS485 digital data output for communications and printing, and firmware now supports Mantrabus 1&2, Mantra ASCII 2 and Modbus RTU. Printing can be actioned by a contact enclosure, and the printer can print the current live value, with header message, engineering units, auto incrementing batch number and in real time if required (using a printer with time/date facility)

The LCA20 also enable selection of device parameters via a PC or keypad rather than using the traditional on-PCB switches.

  • 20 years data retention
  • 4-20mA/0-10V/RS232/RS485 outputs
  • 5V @ 160mA excitation to drive up to 10 x 350 ohm Strain Gauges
  • Autotare, peakhold and reset
  • Digital programming, calibration & display
  • High accuracy
  • Intelligent load cell amplifier
  • IP65 surface mounting case
  • Low drift
  • Simple one pass auto calibration
  • Wide range of power supplies

  • 2 Set Points (output through 5 A 240V AC relays, with a latching option)
  • Communications port (for data transfer or print)
  • RS232 (for 1 to 1 connection and standard prinder drive and large displays)
  • RS485 (enabling up to 253 units to be multi dropped)
  • Printer option (by closure of volt free contact or continuous ASCII stream)
  • Baud rates (2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200)
  • Die cast case (sealed to IP65/NEMA 4 - see below for external dimensions)
  • Stainelss steel case (sealed to IP65/NEMA 4 - external dimensions 224 x 160 x 90mm)
  • PCB only (Eurocard) LCB20 - 100 x 160 x 57mm for rack or customer enclosure
  • Vessel weighing
  • Silo weighing
  • Batch control
  • Crane overload protection/weighing
  • Force measurement

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