User ManUal - FlowVision GmbH

88FC100-CA | Flow MeterInstallationGMBH2.2.2.3 Electrical connection - pulse output (version FC100-CA-U1T4…)The quantity-dependent pulse may be selected in the menu item “USER OUTPUTS” (see chapter5.9). A square pulse signal is available for driving a counter of a primary control at the plug XAH /BUSY E/- and /BUSY C/+ (pins 3 and 4) (see fig. 19 - circuit diagram FC100-CA - transistor outputs).Signal ground shall be connected to pin 3 (BUSY E/-) and the driving load to pin 4 (BUSY C/+).The pulse length is 50 ms (±1%) continuously.Select cable size ≤1.5 mm 2 to make the connections.Electronic signal processing (see fig. 20)If the frequency output of the FC100-CA is connected to an electronic counter, computer or PLC,the load current should not exceed 10 mA to ensure low level is 0.8 V.Typical circuit (example 1)XSE XAO XAH123412345671234567i L ≤ 10 mAU VCDfig. 2031