Поплавковый выключатель С two Коммутационные контакты, two programmable switching outputs Для temperature, alternatively one programmable switching output и one Аналоговый output with display and Блок управления ABZMS-40

Description Product description Float switches are switching devices operated by a float moved by fluid. They serve the control of filling levels in power unit tanks. The ABZMS-40 float switches sense fluid levels in tanks of the small power units Type ABSKG… size 20, 40 and 60. The float switches have to pre-set switching contacts for level and two programmable switching outputs for temperature. Alternative: Float switch with two pre-set switching contacts for level, one programmable switching output for temperature and one analog output 4 … 20 mA. Function level contacts If with falling oil level, the float reaches the switching points, the contacts are operated magnetically. The spool positions of the contacts are maintained until the float exceeds the switching points again as the oil level rises. Switching point L1 is set as contact function normally closed contact at min. and switching point L2 as contact function normally open contact at max. level. Function display and control unit The microprocessor-controlled display and control unit processes the analog input signal for the analysis of the temperature control. The temperature settings can be made at the control unit in a simple menu tree by means of pushbuttons and read at the LED display. The display and control unit has a red, four-digit seven-segment LED display and 3 pushbuttons for the operation as well as up to 4 LEDs integrated in the front plate for displaying alarm conditions. The device has moreover two freely adjustable PNP switching outputs plus the adjustable switch-back points. One PNP output can be programmed as frequency output. Alternatively one freely programmable PNP switching output and one 4...20 mA output for the continuous temperature measurement. The switching conditions are shown in the display. The 4...20 mA output can optionally be changed to 0 … 10 V, 2 … 10 V or 0 … 5 V. In the display, the desired unit (°C, °F) will be shown according to the setting of the measured temperature. By default, the temperature display is set to °C. During the setting and/or programming of the corresponding process parameters, the parameter values and/or the related menu items will be shown in the display. In case of an energy supply failure, all input values will be stored, the min/max values can be retrieved from a permanent memory, if necessary. Parameterization The menu navigation is based on the VDMA standard sheet for fluid sensors 24574-1. The operating menu is designed hierarchically, as tree structure. That means that frequently used functions and adjustment points can be accessed very quickly and rarely used menu items can be found in a sub-menu. Using the ▲ and ▼ keys, the corresponding parameter is set and/or the next menu item is displayed. Using the ► key, the marked menu item is selected and/or the set parameter is accepted and saved. The parameter may be a numerical value and a selection of functions (e.g. NO [output as normally open contact], NC [output as norma