Bosch Rexorth Float switch ABZMS-41-1X/0280/M2/DC-K24 R901269279 Rexroth

Bosch Rexorth Float switch ABZMS-41-1X/0280/M2/DC-K24 R901269279 RexrothFloat switches are switching devices operated by a float moved by fluid. These are used to control fluid levels in power unit tanks.Three series are available:Float switches typeABZMS…M with a maximum of four adjustable switching contacts normally closed contact/ normally open contact or a maximum of three switching contacts and optionally fixedly set temperature contact as normally closed contact for 60 °C, 70 °C or 80 °C Float switches type ABZMS…RTA with resistance measuring chain (level) and resistance thermometer (temperature) with analog output from 4 to 20 mA. Float switches type ABZMS…D with resistance measuring chain and resistance thermometer as with type ABZMS…RTA and additional display and control unit for level and temperature setting. Level functionLevel contacts:The sliding tubes contain the adjustable reed contacts (normally closed contact and normally open contact) that are switched by the permanent magnets installed in the float.If with decreasing oil level, the float reaches the switching points, the contacts are magnetically operated. The spool positions of the contacts are maintained until the float passes the switching points once again due to the increasing oil level.The switching points can be adjusted in the device.Rotating the contacts by 180° changes the switching function; the normally closed contact type becomes a normally open contact or vice versa.Resistance measuring chain:The sliding tube contains the resistance measuring chain (contact distance 5 mm / resolution) for the continuous recording of the filling level height. If the individual reed contact is switched (closed) by the permanent magnet located in the float, a resistance will in each case be activated.The added resistance value is converted by a transformer into 4 … 20 mA.Temperature functionTemperature contact:At the lowest point within the sliding tube, the bi-metal temperature contacts are attached to the circuit board and secured by means of a shrinkable tubing (the same procedure is used with the versions with PT 100 temperature sensor and resistance thermometer with analog output 4 … 20 mA). If the desired temperature switching point is reached, the bi-metal contact is opened or closed.Temperature sensor PT100:The PT100 consists of a temperature sensor guaranteeing continuous temperature recording. In this connection, the max. cable length of [si]6 m[/si][mp]236 in[/imp] is to be observed.Resistance thermometer with measuring transducer, output 4 … 20 mA:The PT100 resistance thermometer with measuring transducer is also attached to the circuit board in the sliding tube. The temperature-dependent signal is converted into a linear current change from 4 … 20 mA.Display and control unit function (version D)The micro-processor controlled display and control unit processes the analog input signals for the analysis of the level and temperature control.