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Thermo Scientific Barnstead Smart2Pure
Ultrapure water system
12. Operating elements
After switching on, all segments of the 7-segment display are shown for 3 seconds. During this
time, the complete measurement cycle is run through and tested.
In the basic setting the display shows the resistance in MΩxcm. The display automatically
scales in the range from 18.2 to 0.005 MΩxcm.
The measurement mode that the measuring device is in is shown via the upper LED row,
whereby the LED for the appropriate unit, µS/cm, MΩxcm or °C, lights up green.
If a measurement range end value is exceeded (>199 µS/cm or >0.005 MΩxcm), then 200 ap-
pears in the display.
When there is an interruption between the system and sensors, the red LED "Status Sens."
lights up and, instead of a measured value, "---" is shown in the display. Should the connection
to the temperature sensor be interrupted, then the buzzer is additionally triggered.
Quit-button:
The Quit/UP-button switched off the buzzer that sounds when a fault occurs. This acoustic
message is then first active again when the limiting value is gone below. The fault message is
also given out via the potential free contact.
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