Controller & Programmer - Type 450 | Gefran | Philippopoulos s.a.
Controller & Programmer - Type 450 | Gefran | Philippopoulos s.a.

Controller & Programmer - Type 450 | Gefran

Gefran 450 Temperature Controller

The Gefran 450 is a 48×48 mm (1/16 DIN) temperature controller designed for local process loops in industrial automation panels. It features dual PV/SV display, four front-panel keys, and an IP65-rated faceplate for installation in industrial control environments.

Measurement Inputs

The input is universal and configurable from the front panel for thermocouples J, K, R, S, T, B, E, N, or 3-wire Pt100 RTD. Measurement ranges cover low to high process temperatures, with a sampling time of 120 ms and accuracy of 0.2% f.s. ±1 digit.

Control and Outputs

Supported control modes include On/Off, P, PD, and PID for heating or cooling applications. Output options are configurable as control or alarm, with relay (5 A / 250 Vac) or logic output (12 V) for SSR drive. Functions include autotuning, self-tuning, soft-start, manual/auto mode, and power limitation (0–100%).

Alarms and Monitoring

The alarm output can be set for absolute value, deviation, or symmetrical deviation relative to setpoint. Loop Break Alarm (LBA) is supported for loop failure indication, with adjustable alarm hysteresis.

Typical Applications

  • Packaging and labeling machinery
  • Food processing lines and thermal equipment
  • Laboratory ovens and chambers
  • Industrial electric heating elements
  • Small temperature loops with SSR or power relay

Installation Conditions

Power supply: 100–240 Vac or 11–27 Vac/dc, 50/60 Hz, up to 10 VA. Operating temperature: 0–50 °C; storage: -20–70 °C. Relative humidity: 20–85% non-condensing. Installation depth: 99 mm.

Standards and Certifications

Complies with CE for RoHS, EMC 2014/30/EU, LVD 2014/35/EU. Reference standards: EN 50581, EN 61326-1, EN 61010-1. Datasheet notes UL conformity C/UL/US File No. E216851.

Datasheet and documents

Description

Technical specifications

Overview

The series 450 temperature controller, measuring 48x48mm (1/16 DIN), offers simplicity of use and high quality of control. The input from temperature sensors is “universal” and configurable with type J, K, R, S, T, B, E, N thermocouples and with 3-wire Rt100 resistance thermometers.

The user interface has a complete double display with green LEDs, 4 keys, and two red LEDs to signal active outputs.

The Lexan® membrane on the front panel guarantees an IP65 protection level for these products. The controller outputs, freely configurable as control output and alarm output, are available in a 5A/250VAC relay version or in a logic signal version to drive solid state relays.

The input signal read speed (120msec) and the tested PID control algorithm with selftuning and autotuning parameter functions guarantee accurate and stable control even for rapid and discontinuous heating systems.

Series 450 models are factory-configured to satisfy most industrial heating applications (input for probe J, hot PID setting, 10 second cycle time) and can always be modified from keyboard and from PC with a few parameters grouped on intuitive menus.

A programming kit for PC is available, consisting of a cable and a user-friendly program for Windows with Wizard pages, oscilloscope for process analysis, saving of parameter recipes, and ability to reset factory parameters.

A settable software protection code (password-protected) lets you limit access to internal parameters to various levels, up to total protection.

Description

  • Universal input configurable from faceplate
  • Accuracy better than 0.2% f.s. under nominal conditions
  • Control output: relay, logic
  • Function: PID heat, PID cool
  • 1 alarm with  completely configurable functions

Certifications

UK Conformity declaration - 450

EAC CERTIFICATION

EU_Conformity declaration_400, 401, 40T72, 450, 1000, 1001, 1101, 600, 600OF, 650, 1250, 1350, 1200, 1300, 800, 1600, 1800, 3400, 3500, 4400, 4500, 2301, 2500, MD8, GFXTERMO4