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

The operator interface is comprehensive and efficient, with two process variables and two 4-digit displays, and engineering unit indications.

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

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

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

Channel 1 has strain gauge, pressure or force sensor inputs, with positive or symmetrical polarizations, 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 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 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 as 15 milliseconds, while resolution can reach a maximum value of 16,000 divisions (by a 120 milliseconds. sampling time).

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

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 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.
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