Hydostatic Level Probe LMK 487

The stainless steel probe LMP 307i is designed for continuous level measurement in water and clean or lightly polluted fluids. Basic element is a high quality stainless steel sensor with high requirements for exact measurement with good long term stability Features: — nominal pressure from 0 ... 4 mH2O up to 0 ... 200 mH2O — output signals: 2-wire: 4 ... 20 mA, 3-wire: 0 ... 10 V (others on request) — diameter 26.5 mm — small thermal effect — excellent accuracy — excellent long term stability Optional features: — IS-version Ex ia = intrinsically safe for gas and dust — drinking water certificate according to DVGW and KTW — different kinds of cables and elastomers

The stainless steel probe DCL 551 with RS485 in-terface uses the communication protocol Modbus RTU which has found the way in industrial communication as an open protocol. The Modbus protocol is based on a master slave architecture with which up to 247 slaves can be questioned by a master – the data are transferred in binary form. DCL 551 has been designed for hydrostatic level measurement in sewage as well as for viscous and pasty media. Basic element is a robust and high overpressure capable capacitive ceramic sensor. Features — Nominal pressure: from 0 ... 40 cmH2O up to 0 ... 200 mH2O — accuracy: 0.35 % (opt. 0.25 %) FSO — output signal: RS485 with Modbus RTU protocol — diameter 39.5 mm — excellent long term stability — especially for sewage, viscous and pasty media Optional features: — diaphragm ceramics Al2O3 99,9%

The DCL 571 with RS485 interface uses the communication protocol Modbus RTU which has found the way in industrial communication as an open protocol. The Modbus protocol is based on a master slave architecture with which up to 247 slaves can be questioned by a master – the data will transfer in binary form. The probe was developed for level measurement in waste water, sludge or water courses. The mechanical robustness of the flush ceramic diaphragm facilitates an easy disassembly and cleaning of the probe in case of service. The outside-diameter is only 22 mm for easy installation and back fitting in 1″ tubes or in cramped fitting conditions Features — Nominal pressure from 0 ... 1 mH2O up to 0 ... 100 mH2O — accuracy: 0.35% (opt. 0.35 %) FSO — output signal: RS485 with Modbus RTU protocol — diameter 22 mm — highly appropriated for sewage water Optional features — drinking water certificate according to DVGW and KTW

The stainless steel probe DCL 531 with RS485 interface uses the communication protocol Modbus RTU which has found the way in industrial communication as an open protocol. The Modbus protocol is based on a master Slave architecture with which up to 247 Slaves can be questioned by a master – the data are transferred in binary form. Basic element is a high quality stainless steel sensor with high requirements for exact measurement with excellent long term stability. Features — nominal pressure: 0 ... 1 mH2O up to 0 ... 250 mH2O — accuracy: 0.25 % FSO — output signal: RS485 with Modbus RTU protocol — diameter diameter 26.5 mm — small thermal effect small thermal effect — high accuracy excellent accuracy — reset function Optional Features — drinking water certificate according to DVGW and KTW — different kinds of cables — different kinds of seal materials