Gefran 1350 Controller – Programmer
The Gefran 1350 is a PID controller, 96×96 mm (1/4 DIN), 80 mm depth, designed for panel door mounting. It is used for single-loop temperature or process control, supporting PID, ON/OFF, heat/cool, and motorized valve open/close control without position feedback.
Operation and Indication
Front panel features an LCD with black background, display area 83×68 mm, PV display 23 mm, SV and F displays, 6 mechanical keys, and an 11-segment bargraph for power, load current, or calculated valve position. Front protection is IP65 per IEC 68-2-3.
Process Inputs
Main input supports thermocouples J, K, R, S, T, C, D, RTD Pt100/JPt100, IR ES1B, and linear signals 0–60 mV, 0–1 V, 0–5 V, 0–10 V, 0/4–20 mA. Accuracy: 0.2% f.s. for TC/RTD, 0.1% f.s. for linear input. Sampling: 60 or 120 ms. Remote setpoint: 0–10 V or 0/4–20 mA. Up to two CT inputs x/50 mAac for load monitoring.
Outputs and Diagnostics
Outputs selectable as relay (up to 4 contacts, 5 A / 250 Vac or 30 Vdc), logic 24 V for SSR, triac 12–240 Vac / 2 A, continuous 4–20 mA, and analog retransmission 0–10 V, 0–20 mA, or 4–20 mA. Supports up to 4 alarms, LBA, HB, HBB, and SSR alarm.
Programming and Communication
Setpoint programmer supports up to 4 programs and 12 steps with ramp, hold, consents, and events. Sixteen function blocks enable basic machine sequences, interlocks, and timing functions without additional relays. Serial communication: RS485 Modbus RTU, 1200–115200 bit/s.
Typical Applications
- Industrial ovens and thermal processing
- Dryers and autoclaves
- Pasteurizers and HVAC/chiller loops
- Plastic extrusion lines
- Systems with SSR, resistive loads, and heater break monitoring
Installation Conditions
Power supply: 100–240 Vac/Vdc or 20–27 Vac/Vdc (selectable), consumption up to 10 W. Operating: -10 to +55 °C; storage: -20 to +70 °C; humidity: 20–85% RH non-condensing. Compliance: EN 61010-1, EN 61000-6-2, EN 61000-6-3.