Gefran 3500: Process Controller (temperature, mA, Vdc)
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SKU: product options
The 3500 serie programmer-controllers can use up to 100 steps (100 ramps and 100 holds), grouped in 50 different programmes.
The programmer can have a cyclic function, a time base configurable from seconds to days, software alarms for the control of the response of the controlled system and four different modes of restart after a power out.
Features:
- Thermocouple, resistance thermometer and linear inputs with configurable scales and characterisation
- Remote setpoint, valve position or load current sensing input (optional)
- 8 configurable optoisolated digital inputs (optional)
- 8 configurable optoisolated outputs that may programmewd with time (optional)
- Double independent PID outputs (Heat/Cool) 10 sets of PID tuning parameters to select from for each program step
- Configurable isolated retransmission output
- 2...10 configurable alarms
- Expansion up to 16 relay outputs (optional)(with 2 MD81 units)
- Serial line: optoisolated 4-wire configurable. Protocol: GEFRAN CENCAL or MODBUS
Sensor Inputs: | |
Types: | |
TC- Thermocouples: | J, K, R, S, T, B, E, N, (NiNi18Mo) |
RTD 3-wires: | Pt100 -200...600ºC |
DC- Linear: | 0...50mV; 10...50mV |
Auxiliary inputs: | For remote setpoint: |
Digital: | 3 isolated control inputs: Start, Stop, Reset -NPN 12V/3.5mA - PNP 24V/6mA (12V/2mA) 8 programmable inputs - NPN12V/5mA - PNP 24V/4mA PNP 12V/2.5mA |
Sampling time: | 120 msec |
Precision: | Accuracy 0.1%f.s. ± 1 digit |
Digital input: | Isolated 1500 V |
Outputs: | |
Maximum number of outputs: | 5 |
Types: | |
Continuous: | 0...10V max 20mA 0...20, 4...20mA load max 500? Resolution 4000steps, max. update time 80msec. |
Relay: | 5A/250Vac |
Logic: | 23Vdc, Rout = 470? (20mA, max. 12V) |
MD81 | Interface output for MD81 unit. |
Digital: | 8 isolated programmer outputs configured by jumpers: SOURCE 12V (max.40mA total) shortcircuit protection SINK externeal 3...30 V (max.33V), 50mA for each output Ri = 100? ; Max. reverse voltage: -50V |
Power supply: | 100 to 240 Vac/dc ± 10% 50/60 Hz; 12VAmax. (3500), 15VA max (4500) Protection by internal fuse not serviceable by the user |
Working temperature: | 0 to 50ºC |
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