Gefran Pressure, Force and Position Instrumentation

40B48 Indicator/Alarm Unit for force, pressure and position inputs

48x48 (1/16 DIN) formats manufactured with SMT.

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

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

• Potentiometer (minimum 100Ω)
• Load cell with sensitivity autoranging between 1,5 and 3,3mV/V
• Strain-gauge pressure sensor

The selection is made using the faceplate keys.

A digital input (24Vdc/4mA) is available for resetting, hold, flash, peak handling or releasing latch.

The instruments have a maximum of 3 outputs that can be mechanical relays (5A/250V) or logic outputs (0 to 11Vdc).

One output of 4 to 20mA (max. 150) is available for retransmitting the measured input signal.

The retransmission output, the digital input and the third output are alternative.

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 data sheet cod. 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

• Strain-gauge or potentiometer input -configurable by faceplate
• Sensor supply check
• Easy to calibrate with sensitivity auto-ranging
• Protected by a personal code
• Configurable by serial link
• 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 2000 and 8000 steps
• Retransmission of the measured variable signal
• 3 trip points, completely configurable from the faceplate

40B96 Indicator/Alarm Unit for force, pressure and position inputs

96x48 (1/8 DIN) formats manufactured with SMT.

The instruments have a lexan membrane faceplate (guaranteed to IP65) which has 3 keys, a 5 digit display and 4 indicating LED's for the output statuses.

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

• Potentiometer (minimum 100W)
• Load cell with sensitivity autoranging between 1,5 and 3,3mV/V
• Strain-gauge pressure sensor

The selection is made using the faceplate keys.

A digital input (24Vdc/5mA) is available for resetting, hold, flash, peak handling or releasing latch.

The instruments have a maximum of 4 outputs that can be mechanical relays or logic outputs.

One output of 0/4 to 20mA (max. 500W) is available for retransmitting the measured input signal.

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

Finally, a triac can be fitted 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 (data sheet cod. 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

• Strain-gauge or potentiometer input -configurable by faceplate
• Sensor supply check
• Easy to calibrate with sensitivity auto-ranging
• Protected by a personal code
• Configurable by serial link
• 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 30000 steps
• Retransmission of the measured variable signal
• 4 trip points, completely configurable from the faceplate
• 6 wires calibration o Version for magnetostrictive sensors

40TB Indicator/Alarm Unit for temperature and pressure inputs, double display

Overview

PROFILE The 40 TB is a microprocessor based, 2-channel alarm unit, format 96x96 (1/4 DIN), manufactured with SMT.

Its operator interface is comprehensive and efficient, with two 4-digit displays for the two process variables and engineering units indications.

It is also equipped with a red LED bargraph, which can be associated to process variables and to peak values.

Three LEDs indicate the output status, while 3 more LEDs can be configured to indicate different functional conditions.

The instrument has a lexan membrane faceplate (guaranteed to IP65) with 4 keys.

Channel 1 has strain gauge, pressure or force sensor inputs, with positive or symmetrical polarisations, calibration with sensitivity auto-calculation (from 1,5 up to 4 mV/V), indication of probe power supply break.

The first input channel can also receive signals from potentiometers with 100 Ohm min. resistance.

The A/D converter performance can be configured via keyboard, so that different options of sampling time can be selected, depending on the desired resolution.

Sampling time can be as low as15msec., while resolution can reach a max. value of 16,000 divisions (by a 120msec. sampling time).

The second input channel can be configured for inputs from temperature sensors (TC, RTD, PTC, NTC) and for mV, V, mA signals, with the ability to have of having a customized input for each kind of sensor.

The selection of the different options is available from keyboard. There is the possibility of having two digital inputs from voltage-free contacts, configurable for functions such as reset, hold, flash, peak or memory reset control.

The instruments can be equipped with up to three relay (5A/250V) or static (0-11Vdc) outputs. Two voltage or current analogue outputs are available for the retransmission of inputs, of alarm sets, of gross and tare values.

The serial communication option may have current loop, RS422/ 485 and RS232 connections with baud rate up to 19200.

The option "transmitter power supply" is foreseen for each input channel. For channel 1 it could be: 1V (potentiometer), 5 and 10V (strain-gauge), 15 and 24V; for channel 2: 15 and 24Vdc.

The programming of the instrument is made easy by grouping the parameters in function blocks and by a simplified data entry menu.

The configuration can be simplified even further using the PC programming kit containing connection cable and a menu guide program that runs under Windows (see technical data code 80020).

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

40A48-96 Indicator/Alarm Unit for tension and current inputs

Overview

Microprocessor based indicator in both 48x48 (1/16 DIN) and 96x48 (1/8 DIN) formats manifactured with SMT.

The instruments have a lexan membrane faceplate (guaranteed to IP65) which has 3 keys, a 3 digit display for the 48x48 format and a 3 / 4 digit display for the 96x48 format, and 3 indicating LED's for the output statuses.

The input signal section provides for the visualisation of the sinusoidal effective value corresponding to following signals:

• AC voltage: 0 to 2, 0 to 20, 0 to 200 and 0 to 500Vac
• AC current: 0 to 20, 0 to 50, 0 to 200mAac 0 to 1, 0 to 5Aac

The selection is made using the faceplate keys and correct input terminals.

No external shunt or adapter is required.

A digital input (24Vdc/4mA) is available for resetting, hold, flash, peak handling or releasing latch.

The instruments have a maximum of 3 outputs that can be mechanical relays (5A/250V) or logic outputs (0 to 11Vdc).

One output of 4 to 20mA (max. 150W) is available for retransmitting the measured input signal.

The retransmission output, the digital input and the third output are alternatives in the 48x48 format, all these options are available contemporaneously in the 96x48 format.

Finally, a triac can be fitted (as an alternative to the other two relay outputs) to drive resistive loads up to a maximum of 2,5A at 220V.

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 data sheet cod. 80021).

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

Description

• AC voltage, AC current direct input on instrument terminals
• Protected code configurable from keypad
• 4 to 20mA retransmitted output
• Up to 3 relay outputs
• Configurable by serial link
• Labels to customize measured physical unit

4A48-96 Indicator/Alarm Unit for tension and current inputs

Microprocessor based indicator in both 48x48 (1/16 DIN) and 96x48 (1/8 DIN) formats manufactured with SMT.

The instruments have a lexan membrane faceplate (guaranteed to IP65) which has 3 keys, a 3-digit display for the 48x48 format or a 3 / 4 digit display for the 96x48 format.

The input signal section provides for the visualisation of the sinusoidal effective value corresponding to following signals:

• AC voltage: 0 to 2, 0 to 20, 0 to 200 and 0 to 500Vac
• AC current: 0 to 20, 0 to 50, 0 to 200mAac 0 to 1, 0 to 5Aac

The selection is made using the faceplate keys and correct input terminals.

No external shunt or adapter is required.

The programming of the instrument is made easy by grouping the parameters in function blocks 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 data sheet cod. 80021).

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

Description

• AC voltage, AC current direct input on instrument terminals
• Protected by a personal code
• Configurable by serial link
• Labels to customize measured physical unit

2400 Fast Indicator/Alarm Unit

Overview

Fast microprocessor display / alarm unit, 96 x 48 (1/8 DIN) format.

Built with SMT technology for an extremely complete operator interface with IP54 protection level (IP65 with protectiv cover).

The front panel has a 6-key soft-touch keyboard and 5-digit LED display of process variable and parameters.

The instrument is appropriate for acquisition of signals with high variation speed.

It has two main analog inputs for many applications, including differential measurements.

The inputs are configurable from the keyboard and accept standard linear signals (and custom linearized signals), as well as signals from pressure probes, load cells, potentiometers, TC, RTD.

There are two additional analog inputs for linear signals and two digital inputs for functions such as alarm latch reset, peak latch reset, calibration check, hold, alarm setpoint selection.

The outputs (up to 4) are relay or logic, and are configurable.

The instrument manages functions such as storage of maximum peak, minimum peak, peak-peak values.

An optional, optically isolated analog output is available for retransmission of input value or peak values.

Alarms
4 (10) completely configurable setpoints.
Selectable “failsafe” function.
MD8 expansion to replace outputs 3 and 4, with 8 additional setpoints.

Digital communication
The instrument offers an optional RS485 2/4 wire / RS232 serial interface with MODBUS RTU protocol for access to instrument parameters, or the option Profibus DP (slave).

Configuration
The programming procedure is facilitated by the menu structure, with various configuration levels for quick and simple data search.

Description

• Double configurable input for strain gauge / potentiometer / linear signal / TC / RTD
• Two auxiliary analog inputs
• Differential measurement
• High precision: 0.1 % f.s. ±1 digit
• High tripping speed
• Automatic calibration for 6-wire strain gauge
• Transmitter power supply and strain gauge probe power supply
• Memory: min. peak, max. peak, max. peak – min. peak
• 3 configurable alarms, failsafe function
• 2 digital inputs
• Up to 4 relay/logic outputs
• 5-digit display
• Serial communication interface:
  - RS485 MODBUS RTU protocol (optional)
  - Profibus DP slave (optional)
• Isolated analog retransmission output (optional