To detect the direction of flow, KRAL flowmeters use a second sensor which detects the direction of rotation of the spindles. The BEM 300 display and processing unit uses complex algorithms to calculate the "effective" flow rate, less any return flows that may occur (e.g. due to pulsation in the line).
A Modbus output is available for the output of all raw and calculated data.
- Simple connection and integration
- Clear, legible display
- Simple menu structure and handling
- Detection of flow direction; return flow calculation and flow rate compensation
- Technical data
Technical data BEM 300 Power supply 24 VDC (+- 20%) Environment Operating temperature -20 to +70 °C Storage temperature -20 to +80 °C Housing Dimensions 116 x 116 x 118 mm Protection class IP65 Material Plastic Weight 1.0 Kg Assembly Wall-mounted, control cabinet installation Display LCD, 4 lines Signal inputs OMG BEG 43D, BEG 44, BEG 45 (+ BEV 13), BEG 553A/54A, BEG 06(A), BEG 47D/E OMP BEG 56A, BEG 45 (+ BEV 13), BEG 47G OME BEG 60A, BEG61A, BEG 62A, BEG 47C OMH BEG 44, BEG 45 (+ BEV 13), BEG 53/54, BEG 06 Temperature sensor - Signal outputs Impulse output 1x (max. 250Hz) Relay output < 0.1% Analogue output 1x (4 to 20 mA/ 0 to 10 V) Bus output Modbus RTU (RS 232/485), Slave Description Number of sensors 2 sensors Display Display of flow rate. Total, accum. Total. Additional functions Flow direction detection and backflow compensation
- Operating instructions