Eaton XN300 Manual

Also see for XN300: Manual Instruction manual

33 Analog weigh module XN-322-2DMS-WM33.6 Calibrating the force transducerXN300 slice modules 02/24 MN050002EN Eaton.com 26033.6 Calibrating the force transducer1. The ADC's gain must be adjusted as required by the specifications in thetransducer's data sheet. The way it is set should ensure that thetransducer range being used takes advantage of the ADC's value rangeto the greatest extent possible without exceeding it.2. The transducer's zero point (tare) is calibrated with the minimum load onthe sensor and mode = 6 (configuration of cutoff frequency for AIx, bits11-13). This defines the initial value for the scale.3. The transducer's full-scale calibration is carried out with the maximumload on the sensor and mode = 7 (configuration of cutoff frequency forAIx, bits 11-13). This defines the final value for the scale. The final valuefor the scale can only be calibrated to a value between 50% and 100%of the positive measuring range.Please refer to „Application examples“ .33.7 Specific technical data for the moduleNumber of channels 2 Wheatstone bridgesD-A converter 24 BitSupply voltage for Wheatstone bridges +5VLoad cell characteristic values 0.25mV/V 0.5mV/V 1mV/V 2mV/V 16mV/VMeasurement ranges1) ± 1.875mV ± 3.75mV ± 7.5mV ± 15mV ± 120mVMeasured value ± 8388608dez = ±800000 hex, zero value =800000hexConfigurable parametersFilter value 2 … 5 … 1023Filter Type Sinc4 … Sinc4 … Sinc4Limit frequency (–3 db) 144 Hz … 57.7 Hz … 0.282 HzConversion time 4 ms … 9 ms … 1702 msNoise-free resolution2) 15.5 Bit … 16 Bit … 20 BitOpen sensor detection YesWorking resistance per channel 150 Ω - 5000 ΩMeasuring accuracy3) ±0.0031% noise for filter word 2Temperature drift ± 0.001% /°CCan be calibrated no1) The measuring ranges are sized for load cell overstretching of 50%2) Typical values with active sinc filter and measuring range of 2 mV/V3) A system calibration with the sensor, in which the minimum and maximum values are calibrated, is required inorder for the measuring accuracy value to be met. The minimum value must be calibrated first, followed by themaximum value. The maximum value can only be calibrated to a value between 50% and 100% of the positivemeasuring range.