TrustedTM PD-T8840 TrustedTM Temperature FTA TM The Trusted Temperature FTA is designed to interface between a Trusted system and up to eight temperature, voltage or current devices using a range of available plug in conditioning units.
TrustedTM Temperature FTA T8840 Issue Record Issue Number Date Revised by Technical Check Authorised by 1 July 05 I Vince G Creech R Cockman 2 Aug 06 N Owens I Vince P Stock Corrections 3 Jun 08 N Owens A Holgate P Stock Open circuit effects 4 Apr 10 S Blackett A Holgate N Owens Change to sub-section 2.
TrustedTM Temperature FTA T8840 Table of Contents 1. Description......................................................................................................................................6 2. Installation ......................................................................................................................................7 2.1. Cable Selection ..............................................................................................................................7 2.2.
TrustedTM Temperature FTA T8840 Notice The content of this document is confidential to ICS Triplex Technology Ltd. companies and their partners. It may not be given away, lent, resold, hired out or made available to a third party for any purpose without the written consent of ICS Triplex Technology Ltd. This document contains proprietary information that is protected by copyright. All rights are reserved.
TrustedTM Temperature FTA T8840 Revision and Updating Policy All new and revised information pertinent to this document shall be issued by ICS Triplex Technology Ltd. and shall be incorporated into this document in accordance with the enclosed instructions. The change is to be recorded on the Amendment Record of this document.
TrustedTM Temperature FTA T8840 1. Description TM The Trusted Temperature FTA enables connection to 8 temperature, voltage or current devices TM using RTD, Thermocouple, Voltage and Current input conditioning units. The Trusted Temperature FTA excludes the conditioning units to allow maximum configurability. More than one type of conditioning unit can be used on the same FTA.
TrustedTM Temperature FTA T8840 2. Installation 2.1. Cable Selection TM The Trusted Temperature FTA can connect direct to an Analogue Input Module using either companion cables TC-211/212 or smart-slot cables TC-511/512. The Output can also be connected to the Analogue Input module via a VFTA if necessary to be compatible with an existing installation. Some isolator modules will float their output to 10V on an open circuit field input. This will cause slice faults on the analogue input module.
TrustedTM Temperature FTA T8840 Typical Configuration using conditioning Devices with 1 to 5V output Using a VFTA Temperature FTA Up to 8 temperature devices 8840 Temperature FTA 8840 Temperature FTA 8840 VFTA 8842 Analogue module 8431 Temperature FTA 8840 Temperature FTA 8840 Figure 3 System connectivity using VFTA For signal conditioning units that provide signals as 4 to 20mA for low to high engineering range, a conversion is needed because the voltage measured by the module input is not exactly
TrustedTM Temperature FTA T8840 2.2. Module Pin-out Connections 2.2.1. RTD1 to RTD8 Terminal Description Conditioning Module Pin Thermocouple or Voltage R Sense Input (X) 0 R Input Low (-) 2 - W Input High (+) 1 + 2 wire RTD, 3 wire RTD 4 wire RTD Red Red Red Red Red White White White/ White Table 1 Input Terminations Figure 4 Temperature Input Schematic 2.2.2.
TrustedTM Temperature FTA T8840 3 Output, channel 2 4 Output, channel 3 5 Output, channel 4 6 Output, channel 5 7 Output, channel 6 8 Output, channel 7 9 Output, channel 8 10 0v Table 3 Temperature signal Outputs Issue 4 Apr 10 PD-T8840 10
TrustedTM Temperature FTA T8840 3. Application TM The Trusted Temperature FTA interfaces between a Trusted system and up to eight monitoring devices using, isolated RTD, Thermocouple, Voltage and Current input conditioning units. Compatible conditioning units must have 1-5v outputs. 3.1. Signal Conditioning units Compatible conditioning unit include the 7B series of units from Analog Devices from Dataforth. TM and SCM7B series 3.1.1.
TrustedTM Temperature FTA T8840 3.1.2. Conditioning Unit Specification The following specification applies to all signal conditioning unit types . Operating Voltage Range 15 to 30V dc Power consumption 2W max Operating Temperature -40 C to +85 C Common mode Isolation 1500V rms Continuous field voltage withstand 120V rms Accuracy +/- 0.3% span Output Signal range +1 to +5V o o 3.1.3.
TrustedTM Temperature FTA T8840 Isolated 0 to 100 I Not available SCM7B36-01 Potentiometer 0 to 200 I Not available SCM7B36-02 0 to 500 I Not available SCM7B36-03 0 to 1K I Not available SCM7B36-04 0 to 5K I Not available SCM7B36-05 Not available SCM7B36-06 7B37-J-01-1 SCM7B37J-01 7B37-J-10-1 SCM7B37J-10 7B37-J-11-1 SCM7B37J-11 0 to 10K I o o -100 to +760 C (-148 to +1400 F) Isolated Thermocouple Type J o o o o 0 to +200 C (+32 to +392 F) 0 to +400 C (+32 to +752 F) o o 0
TrustedTM Temperature FTA T8840 4. Specifications Voltage Range 15 to 30V dc Maximum Input Current 2.5A Number of Inputs 8 Input types Voltage, Current, RTD and Thermocouple depending on chosen conditioning unit. Environmental Specifications Refer to Document 552517 Dimensions Height Width Depth 110mm (4.3ins) 145mm (5.7ins) 68mm (2.6ins) Depth with conditioning unit fitted 90mm (3.6ins) Weight 248gms (0.
