Isolation and Conversion of Standard Signals The Isolation Amplifier DN 28 is used for isolation and conversion of 0 ... 20 mA, 4 ... 20 mA and 0 ... 10 V standard signals. For applications where one signal combination only is used, the Isolation Amplifier DN 28 offers a cost-effective alternative. A cross-connector for the auxiliary power supply ensures fast and easy installation. The slim housing with 11.2 mm width saves significant space on the DIN-rail. If required a measuring range compensation can be performed at the Zero/Scan potentiometers behind the front cover. Analog signal processing guarantees precise measured values with short response times and outstanding signal reproduction at the output. Protective Separation and the 24 V AC/DC power supply make the DN 28 universally applicable for all measurement and industrial applications, as well as for building automation. • Cost optimized design Economical separation for standard applications • Only 60 mm installation depth, 11.2 mm wide Can be installed in economical standard terminal boxes • Fixed ranges, easy to use Ready to use without any settings or adjustments • True 3-port separation Protection against erroneous measurements due to parasitic voltages or ground loops • Protective Separation acc. to EN 61140 Protects service personnel and downstream devices against impermissibly high voltage • Unlimited use with 24 V AC/DC power supply Universally applicable for all measurement and industrial applications • 5 Years Warranty Defects occurring within 5 years from delivery date shall be remedied free of charge at our plant (carriage and insurance paid by sender) Block diagram DRAGO Signal Converter - Isolation Amplifiers - www.drago-au

Technical Data Input Input signal Input resistance Current input approx. 5 Q Voltage input approx. 1 MQ Output signal Load Residual ripple General Data Transmission error Temperature coefficient1' Cut-off frequency -3 dB Response time T99 Test voltage Working voltage (Basic Insulation)2' Protection against electrical shock2' 0 ... 20 mA 4 ... 20 mA 0 ... 10 V see product line Current output < 500 Q Ambient temperature Power supply 3 kV AC, 50 Hz, 1 min. input against output against power supply 600 V AC/DC for overvoltage category II and pollution degree 2 acc. to EN 61 01 0-1 Protective separation...