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As a last step, you specify the time cycle ("Heartbeat") in which the VM40C reports
to AskSensors if no oscillation events are present (Figure 16). This will allow you to
check if the connection still exists. The shortest selectable interval is 5 minutes.
Please note that each modem connection causes an increased current consumption.
Note: The longer the interval, the longer the operating time per battery charge.
The VM40C is now ready for connection with AskSensors. The entries only need to
be made once. The data remains stored even when the device is switched off.
Now select "AskSensors connection" in the AskSensors menu with the modem con-
nected. Switching on the modem and establishing a connection to the mobile net-
work takes a few seconds. Meanwhile, the type and version of the modem, the net-
work operator and the network are displayed.
After the display "Ready for AskSensors" AskSensors receives data from the
VM40C in case of warnings and alarms as well as in the time cycle. You can recog-
nize the active AskSensors function in measurement mode by an "A" at the top right
of the display (Figure 17). AskSensors communication is enabled after a delay of 10
seconds after the start of the measurement. Before this, the wait symbol appears.
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Figure 16: Heartbeat interval input
Figure 17: AskSensors indications
Summary of Contents for VM40C
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Page 17: ...13 Figure 25 Channel settings ...
Page 19: ...15 Figure 26 Example of a measuring channel view in ThingSpeak ...