Indicator & Alarm Unit - Type 40T96 | Gefran | Philippopoulos s.a.
Indicator & Alarm Unit - Type 40T96 | Gefran | Philippopoulos s.a.

Indicator & Alarm Unit - Type 40T96 | Gefran

Gefran 40T96 Process Indicator & Alarm Unit

The Gefran 40T96 is a 96×48 mm (1/8 DIN) process indicator and alarm unit for temperature and linear process signals. It is not a PID controller; its primary use is local PV display, limit monitoring, and signaling to PLCs, relay logic, or supervisory systems. The front panel is rated IP65, with three keys and a 3- or 4-digit LED display.

Measurement Inputs

Input type is selectable from the front panel. Supported sensors include thermocouples J, K, R, S, T, B, E, N, L-GOST, U, G, D, C; RTD Pt100/JPt100 (2- or 3-wire); PTC/NTC; and linear signals 60 mV, 1 V, 5 V, 10 V, and 20 mA. Display range is configurable from -1999…9999 or -999…999, depending on input type.

Accuracy and Sampling Time

Accuracy is 0.2% of full scale at 25 °C. Sampling time is 120 ms for full resolution, adjustable to 60, 30, or 15 ms for linear inputs where faster alarm response is required.

Outputs and Alarm Functions

Up to four outputs are available per configuration: relay (5 A / 250 Vac) or logic (0…11 Vdc). Output 1 can be optionally specified as a triac (20…240 Vac / 3 A). The digital input (24 Vdc / 5 mA) is used for reset latch, hold, flash, zero, and peak value selection.

Retransmission and Communication

Analog retransmission (0…10 V or 0/4…20 mA) is available for transferring measured values to PLCs, recorders, or SCADA. Optional isolated RS485 supports GEFRAN CENCAL and Modbus RTU protocols.

Typical Applications

  • High/low temperature alarms in furnaces and thermal zones
  • Indication of 4…20 mA or 0…10 V from transmitters
  • Local monitoring in extruders, test benches, and production lines
  • PV retransmission to supervisory systems
  • Process protection with latched alarms and external reset

Operating Conditions and Standards

Power supply: 100…240 Vac/dc or 11…27 Vac/dc. Operating temperature: 0…50 °C; storage: -20…70 °C; humidity: 20…85% non-condensing. UKCA declaration references EN 63000:2018, EN 61326-1:2013, and EN 61010-1:2010.

Datasheet and documents

Description

Technical specifications

Overview

Microprocessor based indicator in both 96×48 (1/8 DIN) format manufactured with SMT.

The instrument have a lexan membrane faceplate (guaranteed to IP65) which has 3 keys, a 3 / 4 digit display format, and 3 indicating LED's for the output statuses.

The input signal can be selected from a wide range of sensors:

  • Thermocouples of type J, K, R, S, T, B, E, N, L GOST, U, G, D, C
  • Resistance thermometers Pt100, Pt100J (japanese standard) 2 / 3 wire
  • PTC and NTC themistors
  • Linear inputs 0 to 60/12 to 60mV, 0 to 20/4 to 20mA, 0 to 10/2 to 10/0 to 5/1 to 5/0 to 1/0, 2 to1V

The selection is made using the faceplate keys.

The instrument is available in version base, with two outputs to relé (2R), and expandible version.

The instruments have a maximum of 4 outputs that can be mechanical relays (5A,250Vac/30Vdc cosφ=1) or logic outputs (0 to 11Vdc).

A digital input (24Vdc/5mA) is available (for resetting, hold, flash, peak handling or releasing latch) and one output of 0…10V, 0/4 to 20mA (max. 500) is available for retranmitting the measured input signal.

The retransmission output, the digital input and the third output are available contemporaneously.

The serial communication option (available in RS485 standard) allows connection to supervision systems and PLCs with two protocols: GEFRAN CENCAL and MODBUS RTU.

Finally, a triac can be fitted (as an alternative to the output 1) to drive resistive loads up to a maximum of 1A at 240V.

The programming of the instrument is made easy by grouping the parameters in function blocks (CFG for the alarm hysteresis, Inp for the inputs, Out for the outputs…) and by a simplified data entry menu.

The configuration can be simplified even further using the PC programming kit made up of a connection cable and a menu guide program that runs under Windows (see technical data GF_eXpress).

A configurable personal software protection code (password protection) can be used to restrict the levels of editing and displaying the configuration parameters.

Description

  • Faceplate configurable input
  • Protected by a personal code
  • Configurable by a serial link
  • Transmitter power supply incorporated
  • Custom thermocouple linearisation available
  • Internal linearisation for engineering units
  • Labels provided for the more common physical units
  • Sampling time and trip intervention programmable between 15 and 120msec with resolution between 4000 and 16000 steps
  • Retransmission of the measured variable signal
  • 4 trip points completely configurable from keyboard
  • RS485 optically isolated serial line
  • Protocol: GEFRAN CENCAL or MODBUS RTU
  • Rapid configuration from PC with GF_eXpress package

Certifications

UK Conformity Declaration - 40T96

EAC CERTIFICATION

UL Certifications - UL - 1200-1300-4 / 40T96-4 / 40B96