LCA15重量變送器LCA20 Load Cell Amplifier with Data Outputs RS232 & RS485 LCA20 Product Sheet Issue 1.0 27.03.14 mantracourt.com [email protected] tel +44 (0)1395 232020 LCA20 & LCB20 Load Cell Amplifier with Data Outputs RS232 & RS485 User Benefits  Improved stability of load cell input  Improved analogue output response time  Full digital set-up.calibration using keypad.PC  Easy load cell sensitivity selecion set by PC.keypad  Analogue.data output, set point.display capabilities AC.DC powered  Simple one pass calibration  New comms module  Easy configuration using LCA Toolkit software  Available with DIN Rail mounting.PCB module.a stainless steel case Ideal Applications  Civil Engineering  Agriculture  Industrial Processing The LCA15 has been redesigned to become the LCA20 taking advantage of new technology with improved performance.increased functionality. The external appearance.dimensions of the LCA20 remains the same as the LCA15. In addition to the introduction of a new microprocessor.using the latest RISC technology, the LCA20 has many new features such as the .ion of device parameters via a PC.keypad rather than using the traditional on-PCB switches. A PCB only version, which can be DIN rail mounted, is also available as the LCB20.  RS485.RS232 digital data output for communications.printing  Measurement speeds 10 / 80 samples per sec  Factory calibration in mV/V  5 V excitation supports up to 10 x 350 R load cells  Fully isolated 4-20 mA.0-10 V analogue outputs  6 wire input to compensate for barrier.cable losses  2 set points SPCO relay outputs  Sensitivity from 0.5 to 7.8 mV/V  10 pt linearization  3 x configurable digital inputs e.g. for auto tare, peak hold.reset  Firmware now supports Mantrabus 1 & 2, MANTRA ASCII 2 & MODBUS RTU  ROHS Compliant & Environmentally sealed to IP65 / NEMA 4 enclosure dimensions 200 x 120 x 75 mm Introduction Specification at a Glance The ROHS Compliant LCA20 flexible digital signal conditioning amplifier for multiple.single load cell applications, offering very easy one-pass calibration and fast set-up New Design PCB New LCA Toolkit Software LCA20 Product Sheet Issue 1.0 27.03.14 mantracourt.com [email protected] tel +44 (0)1395 232020 For more information contact us today… mantracourt.com [email protected] Mantracourt Electronics Ltd The Drive, Farringdon, Exeter, Devon, EX5 2JB, UK T: +44 (0) 1395 232020 F: +44 (0) 1395 233190 In the interests of continued product development, Mantracourt Electronics Limited reserves the right to .product specifications without prior notice LCB20 Digital load cell amplifier with data & relay outputs ADP15 Universal digital panel meter for measuring 4-20 mA, 0-10 V LC4 RS485/232 Communications (supports MODBUS RTU, ASCII, MANTRABUS 1 & MANTRABUS 2) PGM1 Programming cable for the LCA20 LCA Toolkit Quick set up software event monitoring, data logging, calibration.configuration Instrument Explorer Quick set up software event monitoring, data logging, calibration.configuration The Application: The supplier of a plant based herbal product had a problem with potential decay-causing organisms affecting the quality of the material during processing.subsequent storage. The solution lay in the use of a chemical spray which would protect the product from degradation. However, to be effective, the spray has to be applied in precise quantities (parts per million). The Solution: The chemical spray rate is based on the product flow rate through the manufacturing process. The system developed was made up of five Mantracourt integrated ADP15 indicator display.s.an LCA20 weighing amplifier/digitiser module unit supported by the LCA Toolkit software. During the process the product flows over a chute which has a load cell mounted on a pivot. The load cell weighs the product as it flows down the chute.transmits this to the LCA20. The LCA20 reads the product flow rate from the load cell in kilograms per hour.transmits this as a 4-20 mA signal to the ADP15 instruments. This data, in turn, allows an accurate (and also efficient) use of the treatment spray. Storage temperature Operating temperature Relative humidity IP Rating - 20 to +70oC - 10 to +50oC 95% maximum non condensing IP65 / NEMA 4 CE Environmental Approvals European EMC Directive Low Voltage Directive 2004/108/EC 2006/95/EC Case Study Related Product Related Software CE & Environmental