Digital load cell transmitter D5264S

The Load Cell/Strain Gauge Bridge Converter D5264 module is a unit suitable for applications requiring SIL 2 level in safety related systems for high risk industries. The unit acts as a galvanically isolated interface installed between a PLC/DCS in Safe Area and a load cell (or a group of load cells) in Hazardous Area. Up to four 350 Ω load cells, or five 450 Ω load cells, or ten 1000 Ω load cells can be connected in parallel. It provides a fully floating power supply voltage with remote sensing capabilities to load cells located in Hazardous Area and converts the mV signal from the load cell into a 0/4-20 mA, providing both current source and sink capabilities. The module is also provided with PhotoMOS alarm output. A modbus output is also provided to interface the PLC/DCS using digital communication.SIL 2 / SC 3Input from Zone 0Installation in Zone 2Strain Gauge Bridge Isolated ConverterUp to four 350 Ω load cells in parallel0/4-20 mA sink/source output currentModbus RTU RS-485 for monitor & configurationField Automatic CalibrationFully programmable operating parametersHigh Accuracy, μP controlled A/D converterThree port isolation, Input/Output/SupplyTechnical Specifications:SupplyType24 Vdc nom (18 to 30 Vdc), reverse polarity protected.Current Consumption90 mA @ 24 Vdc with four 350 Ω load cells connected and 20 mA output, typical.Power Dissipation2.1 W @ 24 Vdc with four 350 Ω load cells connected and 20 mA output, typical.InputTypeUp to four 350 Ω load cells (parallel connection). up to five 450 Ω load cells (parallel connection). up to ten 1000 Ω load cells (parallel connection).Integration time100 ms (slow) or 12.5 ms (fast).Bridge supply voltage4.0 Vdc nominal.Bridge output signal1 to 4 mV/V.OutputType0/4 to 20 mA, on max. 400 Ω load, current limited @ 24 mA.Response time≤ 20 ms (10 to 90 % step).AlarmTrip point rangewithin rated limits of the input sensor.ON-OFF delay time0 to 1000 s, 100 ms step.Hysteresiswithin rated limits of input sensor.Outputvoltage free SPST photoMOS: 100 mA, 60 Vdc (≤ 1 V drop).Modbus interfaceTypeModbus RTU RS-485 up to 115.2 kbps for monitor/configuration/control.Input performanceRef. Conditions24 V supply, 250 Ω load, 23 ± 1 °C ambient temperature.Calibration accuracy≤ ± 0.05 % FSR.Linearity accuracy≤ ± 0.02 % FSR.Temp. influence≤ ± 0.002 % FSR for a 1 °C change.Output performanceRef. Conditions24 V supply, 250 Ω load, 23 ± 1 °C ambient temperature.Calibration accuracy≤ ± 0.05 % FS.Linearity accuracy≤ ± 0.05 % FS.Temp. influence≤ ± 0.01 % FS on zero/span for a 1 °C change.IsolationTest VoltageI.S. In/Out 2.5 kV; I.S. In/Modbus Out 2.5 kV; I.S. In/Supply 2.5 kV; Out/Supply 500 V; Modbus Out/Supply 500 V; Out/Modbus Out 500 V; Out/Alarm Out 500 V; Alarm Out/Modbus Out 500 V; Supply/Alarm Out 500 V.Environmental conditionsOperating temperaturetemperature limits –40 to +70 °C.Storage temperaturetemperature limits –45 to +80 °C.Safety descriptionEquipmentAssociated apparatus and non-sparking electrical equipment.Safety parametersUo = 7.2 V, Io = 177 mA, Po = 471 mW at terminals 13-14-15-16-17-18. Um = 250 Vrms or Vdc, -40 °C ≤ Ta ≤ 70°C.MountingTypeDIN-Rail 35 mm, with or without Power Bus or on custom Term. Board.Weightabout 160 g.Connectionby polarized plug-in disconnect screw terminal blocks to accomodate terminations up to 2.5 mm² (13 AWG).DimensionsWidth 22.5 mm, Depth 123 mm, Height 120 mm.Certifications:ATEX, IECEx, EMC, Ex, Maritime, Metrological, SIL certificates available for various regions (see documentation links).Characteristics / Technical Specifications:Model: D5264SChannels: 1Status: ACTIVEProduct lifecycle policy: ACTIVEMounting: DIN-Rail 35 mmWeight: about 160 gDimensions: Width 22.5 mm, Depth 123 mm, Height 120 mm