User Documentation

Introduction

5662300000/01/08.10

Typical Applications

Typical of applications for the WAVE TTA is the

conversion of thermocouple temperature input (low

range of millivolts) into a high level (e.g. 4-20 mA)

value for transmission to a control system.

In this type of installation the WAVE TTA provides:

• Linearization of the standard thermocouple tem-

perature/millivolts characteristic.

• Isolation of the input signal to the control system.

This allows the user to use a thermocouple with a

grounded hot junction for a quick response at the

measurement point. This would otherwise convey

electromagnetic influences (humming) into the

control system.

• Selectable output value for a thermocouple-break

event.

• Flashing LED status indicator on the unit front on

thermocouple-break.

• Relay alarm output if required on thermocouple-

break.

• Relay alarm output on high or low process tem-

perature.

Figure 2 Installation overview