Microtronics 305001, User Manual

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3. Wait until it is indicated in the list of measurement instruments that the device is in ALOHA
transmission mode. This is indicated by a speech bubble with the "Aloha" inscription.
4. Check the internal "GSM level" measurement value in the incoming data in the ALOHA data
window of the myDatanet server, which can be accessed by clicking on the speech bubble
with the "Aloha" inscription (see "myDatanet Server Manual " 805002). Change the position
of the antenna to obtain the best possible signal quality.
Note: A security stock of 15dBm is highly recommended.
Note: Additional explanation about evaluating the "GSM level":
"GSM level"
>-64dBm
-64 to -73dBm
-74 to -83dBm
-84 to -93dBm
-94 to -107dBm
<= -108dBm
8.3.3 Technical details about the universal inputs
Note: The universal inputs are not galvanically isolated.
Important note: If the myDatalog2Ex is operated in areas with a zone 1 explosive
atmosphere, it is not permitted to connect external voltages to the universal inputs. This
means that an analogue sensor must be supplied by the 22,5 VDC voltage output of the
device. In digital modes (digital, day counter, pulse counter), the sensor must only establish
a connection between the 22,5 VDC voltage output of the device and the universal input.
The myDatalog2Ex is equipped with a 12 bit ADC. The resolution is increased by oversampling.
56 Rev. 02