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Mounting and operating instructions <strong>AMTRON</strong> R○ X-<strong>50</strong><br />
Error messages, alarms<br />
In case of failure the message “alarm” is displayed overlaying the numbers in the display. The cause for the error can<br />
be found in the Information loop based on a short message.<br />
Message Error / Alarm Possible cause Action<br />
th-ERROR Error temperature<br />
warm side, no<br />
measurement is<br />
possible<br />
tc-ERROR Error temperature cold<br />
side, no measurement<br />
is possible<br />
SYSt-Error Memory problem<br />
EEPROM<br />
th-ALArM Temperature warm<br />
side outside the<br />
permissible measuring<br />
range<br />
tc-ALArM Temperature cold side<br />
outside the permissible<br />
measuring range<br />
dt-ALArM Temperature<br />
difference outside the<br />
permissible measuring<br />
range<br />
Data back-up<br />
The device data is saved in the EEPROM as follows:<br />
• Wrong installation of the<br />
sensor<br />
• Disconnection/ short<br />
circuit of the sensor<br />
cables<br />
See above See above<br />
• Control the wiring<br />
• Control the disconnected<br />
sensor cables with an<br />
Ohmmeter<br />
• If OK control the input<br />
with a resistor:<br />
Pt 100 100 - 1<strong>50</strong>Ω<br />
Pt <strong>50</strong>0: <strong>50</strong>0 - 620Ω<br />
Component-/ device problem Send back device for an<br />
inspection<br />
Temperature of the heating Check the actual<br />
circuit is to high or to low temperature in the menu<br />
InStAnt with the temperature<br />
in the menu InPutS<br />
See above See above<br />
• Temperature difference of<br />
the heating circuit is to<br />
high or negative<br />
• Problem of the sensor<br />
• Battery unit: once a day (23.59)<br />
• Mains unit: All data remains on power failure when the internal battery is present.<br />
• Mains unit: If the internal battery is missing: every complete hour.<br />
Recalibration/auditing<br />
Check the actual<br />
temperature difference in the<br />
menu InStAnt with the<br />
temperature in the menu<br />
InPutS<br />
A data logger (EEPROM), in which important settings are stored, is located on the terminal module of the totaliser. This<br />
configuration memory simplifies recalibration and auditing of the unit.<br />
A replacement unit with the correct calibration (verification) parameters (pulse value, mounting side, etc.) has just to be<br />
plugged in. Other parameters do not have to be re-entered. The field wiring remains connected.<br />
Procedure<br />
Calibrated instruments are to be returned to the factory for recalibration once the expiry date has passed.<br />
The device has the advantage that only the totaliser module has to be returned. The field wiring can remain connected.<br />
Due to the integrated configuration memory in the connecting board, the measuring point data remain (this does not<br />
apply to calibration data) .<br />
VD 3-248 e 03.2006 22 Aquametro AG
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