SIGNAL CONVERTERS DESCRIPTION E-780 series devices are rail-mountable industrial devices in a plastic case designed to be used as signal converters. E-780 series converters convert resistance thermometer (RTD) and thermocouple (TC) type temperature sensors, resistance and DC mV signals to standard 4 - 20 mA output signals. The input and output signals of the E-780 series devices are galvanically isolated. E-780 series converters can be ordered as 2-wire or 4-wire types. In 2-wire types, the operating voltage and output signal are not galvanically isolated, in 4-wire types, the operating voltage and output signal are galvanically isolated. E-780 series converters can be configured with special PC software provided by Elimko and optionally available HART communication interface. TECHNICAL SPECIFICATIONS Operating Voltage Electrical 10 – 30 V DC (2 wire types) 18 – 36 V DC (4 wire types) 10 V 1 kV AC Voltage Drop Isolation Voltage, Test Isolation Voltage, 50 V AC Operation Environmental Conditions Operating Temperature Between -10 ºC to +55 ºC Operating Humidity < 95 %Rh (non-condensing) Protection Class IP20 Calibration Temperature 25 ºC ± 3 ºC Mechanical Dimensions 90 mm x 112 mm x 6,5 mm Weight (approx.) 60 gr Connection Cables Maximum 1,5 mm2 (AWG 16) EU Directive Compliance; • Electromagnetic Compatibility Directive EN 61326-1 • Low Voltage Directive EN 61010-1 Resistance Thermometer (RTD) / Resistance Input 2-wire, 3-wire, 4-wire Sensor Connection Type (Configurable) Maximum Wire 50 Ω Resistance 2-wire Compensation Maximum 100 Ω Resistance (Configurable) Measurement Current < 150 μA Error Signaling Sensor Break, Short Circuit Thermocouple (TC) / Millivolt Input Input Impedance > 10 MW Maximum Wire 50 Ω Resistance Cold Junction Constant, Internal NTC, External Compensation (CJC) Pt-100 (Configurable) Error Signaling Sensor Break Output Output Signal 4 – 20 mA or 20 – 4 mA < ((Voperation-10) / 0,021) Ω Load Resistance 2-wire types Maximum 600 W (4-wire types) 3,8 mA or 21,0 mA Malfunction Indication (Configurable) Output Update 10 per second Operation Influences Ambient Temperature < ± 0,01 %/ºC CJC Error < ±1 ºC (For TC input) EMC Head < ± 0,5% Span Other Warm-up Time 5 Minute Communication HART 7 Interface Damping Time 0 to 60 seconds (Configurable) Maximum Write-Erase Memory

STANDARD WORKING LIMITS Inputs TC Tip B TC Tip E TC Tip J TC Tip K TC Tip L TC Tip N TC Tip R TC Tip S TC Tip T TC Tip U Pt-100 ORDERING GUIDE E-780 Series Signal Converters Standard Features User configurable. Input Signal Thermocouple (TC), Resistance thermometer (RTD), mV and Resistance Output Signal Operating Voltage * E-780 series converters can be configured with special PC software provided by Elimko and optional HART communication interface. CONNECTION DIAGRAM Connection Diagram for 2 Wire Types Connection Diagram for 4 Wire Types Measurement / Control Device Measurement / Control Device...