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Quick Start Guide
00825-0100-4329
Note
Drift monitoring is not possible if a sensor fails and sensor backup is active.
Diagnostic cases
The temperature transmitter identifies error scenarios with these diagnostic cases.
For more information on parameters relating to diagnostic cases, see
parameters
Table 1-1: Warnings
Diagnostic number
1
2
Table 1-2: Alarms
Case number
3
4
5
6
(1)
For 2-wire operation, no diagnostic message is provided in case of low voltage (see
function
Table 1-3: Failures
Case number
7
8
9
Diagnostic function (two-wire)
In two-wire operation, the temperature transmitter uses the analog output for
temperature measurement and diagnostics.
drEd configures the diagnostic cases that the temperature transmitter signals using the
analog output:
•
ON: Limits the diagnostic messages to only failure messages. The temperature
transmitter will signal only diagnostic cases 7-9.
•
ONdr: Limits the diagnostic messages to alarm and failure messages. The temperature
transmitter will signal only diagnostic cases 3-9.
Quick Start Guide
or
Drift
Monitoring.
Description
The temperature deviation exceeded the drift warning threshold (drW).
The temperature of the internal electronics exceeded the limit of 257 °F
(125 °C).
Description
The temperature deviation exceeded the drift alarm threshold (drA).
One of the two sensor elements failed.
The measured temperature value is outside the allowable measuring
range.
The supply voltage is outside the operating range.
(two-wire)).
Description
The temperature deviation exceeded the drift failure threshold (drF).
An error occurred while setting parameters using IO-Link.
Both sensor elements failed or general electronics problems.
Introduction
January 2019
Adjustable
(1)
Diagnostic
9
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