Trusted
TM
Temperature FTA T8840
Issue 4 Apr 10
PD-T8840
3
Table of Contents
1.
Description......................................................................................................................................6
2.
Installation ......................................................................................................................................7
2.1.
Cable Selection ..............................................................................................................................7
2.2.
Module Pin-out Connections ..........................................................................................................9
2.2.1.
RTD1 to RTD8................................................................................................................................9
2.2.2.
PWR ...............................................................................................................................................9
2.2.3.
IOIF.................................................................................................................................................9
3.
Application ....................................................................................................................................11
3.1.
Signal Conditioning units ..............................................................................................................11
3.1.1.
Isolator Physical dimensions ........................................................................................................11
3.1.2.
Conditioning Unit Specification.....................................................................................................12
3.1.3.
Available Conditioning Units.........................................................................................................12
3.1.4.
Cold Junction Compensation .......................................................................................................13
4.
Specifications ...............................................................................................................................14
Figures
Figure 1 Module Layout ...........................................................................................................................6
Figure 2 System connectivity using 1-5v output devices ..........................................................................7
Figure 3 System connectivity using VFTA ................................................................................................8
Figure 4 Temperature Input Schematic ....................................................................................................9
Figure 5 Conditioning Unit Dimensions ..................................................................................................11
Tables
Table 1 Input Terminations.......................................................................................................................9
Table 2 Power terminations ......................................................................................................................9
Table 3 Temperature signal Outputs ......................................................................................................10
