GEFRAN Controller, Type: 3400 / 4400 CONFIGURABLE CONTROLLERS

3400 / 4400 CONFIGURABLE CONTROLLERS Main features • Cascade control • Ratio control • Square root extraction on input signal • Programmer with 4 setpoints and 4 ramps • Thermocouple or resistance thermometer inputs and linear inputs with configurable scale and linearisation • Isolated inputs for remote setpoint, valve position feedback signal or load break detection • Two control outputs with independent PID parameters ( Heat/ Cool) • AUTO/ MAN station with bumpless transfer incorporated • Configurable output for a retransmission signal • Serial line: optoisolated 4-wires configurable. Protocol: GEFRAN CENCAL Main applications • Climatic chambers and test benches • Furnaces and ovens that require a setpoint that varies with time • Steriliser, autoclaves, dryers, plant for transformation • Chemical and pharmaceutical industries • Food processing plants • Water treatment • Siderurgy industry • Furnaces for ceramics and bricks • Heat exchange control TECHNICAL DATA INPUTS Accuracy 0, 1% f.s. ± 1 digit Sampling time 120msec TC- Thermocouple J ( Fe-CuNi) 0...1000° C / 32...1832° F K ( NiCr-Ni) 0...1300° C / 32...2372° F R ( Pt13Rh-Pt) 0...1750° C / 32...3182° F S ( Pt10Rh-Pt) 0...1750° C / 32...3182° F T ( Cu-CuNi) -100...400° C / -148...752° F B ( Pt30Rh-Pt6Rh) ( * ) 50...1800° C / 122...3272° F E ( NiCr-CuNi) -100...750° C / -148...1382° F N ( NiCr-Si-NiSi) 0...1300° C / 32...2372° F Ni-Ni18Mo ( Ni-Ni18Mo) 0...1100° C/ 32...2012° F ( * ) for type B thermocouples, the class of accuracy is valid for temperatures above 500° C. RTD 2/ 3-wires Pt100 -200...600° C / -328...1112° F DC - Linear 0...50mV, 10...50mV External shunts are used for voltage ran- ges 0...10V and current ranges of 0...20mA and 4...20mA. Custom 32 segment characterisation. Ri > 1M& . Auxiliary input Isolated 1500V For remote setpoint: 0...10V - Ri > 100K& 0...20mA - Ri = 50& 4...20mA - Ri = 50& For potentiometer: 0...1V - Ri > 10M& ( potentiometer with value from 100& to 20K& ) For current transformer: 0...5Aac, 50/ 60Hz - Ri = 20m& Digital Isolated 1500V 3 isolated command inputs for Start/ Stop/ Reset functions, Set Locale/ Remoto, Auto/ Man, Hold, direct selection of one of the four program set- points: - NPN 12V/ 3, 5mA - PNP 24V/ 6mA ( 12V/ 2mA) OUTPUTS Isolated 1500V Maximum and minimum adjustment from the faceplate keys: • Direct control ( Heat) • Inverse control ( Cool) • Retransmission of local or remote set- point • Retransmission of the input signal • Retransmission of the deviation signal between the values of the setpoint and the input. • Alarm 1 or 2 • Open/ Close for valve positioner motor Continuous 0...10V max 20mA 0...20, 4...20mA Rmax = 500& Resolution 4000 steps, max. update time 80msec. Relay Contact, which can be selected as NO/ NC rated at 5A/ 250Vac at cosÕ = 1 ( with resistive load) with spark suppres- sion on the NO contact. Logic 23Vdc, Rout = 470& ( 20mA, max.12V) . Voltage output for SSRs. MD81 MD81 expansion unit of the alarms ( alarms 3...10) SERIAL LINE The instrument is equipped with Passive Current Loop ( 1200 baud) interface or RS422/ 485, RS232 ( 1200 / 2400 / 4800 / 9600 baud) . Protocol: GEFRAN CENCAL POWER SUPPLY 100...240Vac/ dc ± 10% , 50/ 60Hz 12VA max ( 3400) , 15VA max. ( 4400) Protection by internal fuse not serviceable by the user.