Weidmuller WAVE TTA, Руководство пользователя

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Introduction
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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