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Quick Start Guide
00825-0100-4329
If the measured temperature value is outside the scaled measuring range, the analog
signal is 20-20.5 mA or 3.8-4 mA (see
continues to increase or decrease, diagnostic case 5 occurs. For more information, see
Diagnostic
Figure 1-1: Analog output with factory settings
•
1: Setting OU2 = I
•
2: Setting OU2 = Ineg
•
MAW: initial value of the measuring range
•
MEW: final value of the measuring range
•
ASP: analog start point
•
AEP: analog end point
1.2.2
Diagnostic function
The temperature transmitter uses two different, thermally coupled sensor elements (NTC,
PT 1000) to automatically detect drifts and errors during temperature measurement.
The temperature transmitter forms an average value using the individual NTC and Pt 1000
measured values. That value determines the measured temperature value and is the basis
for Drift Monitoring Diagnostic (see
The temperature transmitter can detect other errors. Use the parameter drEd to set which
diagnostic cases the temperature transmitter signals. For more information, see
Diagnostic
The analog signal provides diagnostic case messages in two-wire operations. In three-wire
operations, the switching signal provides diagnostic case messages in addition to the
analog signal.
Quick Start Guide
cases.
cases.
Figure
1-1). When the measured temperature value
Drift
Monitoring).
Introduction
January 2019
7
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