Dansensor® ISM-3 EN User Manual 11
P/N 200114-I
09/2021
4. Operation
ISM-3 is equipped with four keys and a large LED display for indication of the O
2
concentration.
Fig. 3. ISM-3 operation panel
Start up
ISM-3 starts up with a self-test lasting about 10 seconds. After the self-test the heating which
takes 10 minutes begins. If ISM-3 only has been switched off shortly the heating time is
reduced. Minimum heating time is 2 minutes.
The rest of the heating time in minutes is indicated in the display as
H 10 (H for heating). When
the time is counted down to zero the ISM-3 is ready. After 10 minutes ISM-3 has a read-out
difference of max 3% of the read value. I takes the total heating time of 20 minutes until the
ead-out difference is below the specified 1% for the shown value.
If the measuring had been activated when the ISM-3 was switched off, the measuring is
automatically started when ISM-3 is turned on. If an external measuring control has been
chosen, the measuring will start when the measuring control signal is set to ON.
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