gO Measurement-System User Manual
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TEG
AG
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8005 Zürich, Switzerland
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F: +41 44 633 13 68
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6. Requirements for an ISO 9869 compliant U-value measurement
In the following the most important aspects for an ISO 9869 compliant U-value measurement are listed. For more detailed
information the reader is referred to the complete ISO 9869 documentation.
Mounting of the surface temperature sensor and the (combined) surface temperature/heat flux sensor
Always use the supplied double-sided adhesive tapes to mount the sensor since it has been calibrated for it.
Inside and outside sensors must be mounted exactly opposite to each other at the same wall for good results.
Mounting of the ambient temperature sensor
Use the supplied sensor clips to mount the sensor.
Avoid direct solar radiation onto the sensor.
Place the sensor between 5-10cm next to the heat flux or surface temperature sensor.
General:
The duration of the measurement should be at least 72h.
A temperature difference between inside and outside temperature of at least 5°C over the entire period is
recommended.
If surrounding conditions are strongly fluctuating it might take longer than 72h to assess an ISO 9869 compliant U-
value.
7. Charging of the measurement system
With the supplied power supply, it takes approximately 6 hours to charge the base station and 2 hours to charge a node. We
suggest to not use cheap chargers as these are often not reliable and can lead to technical problems. For additional chargers
and power banks visit our e-shop or contact us.
8. Mini FAQ
•
How do I turn of the base station?
Press the power button until the cloud and LoRa indicator starts to flash. It takes then approx. 30 seconds until the
base station is completely shut down. During this time both indicators flash orange/yellow.
•
Where can I find more information on how to install and analyze a measurement?
On greenTEG
’
s YouTube channel you can find various explanatory videos on the gOMS. Moreover, you can find case
studies and a software tutorial on the greenTEG Homepage.
•
How can I check the battery level of a node/base station?
There are two options. Either you press shortly the power button. Then you should be able to see the battery level
directly from the battery indicator. Another possibility is to go into the Live Data view of the analysis tool. There,
you can see both the battery level of the (running) nodes and of the relevant base station. This is only possible if
the system is running.
•
What should I do if a node is not responding?
If your node doesn’t react (e.g. by using a non
-compatible charger) you can do a reset of the node. First, switch off
the node and charge it for at least 10 minutes. Then press and hold the power button for around 30 seconds. The
node will switch on, the LoRaSC connection indicator will turn yellow and the node will switch off again. Now you
can use the node as usual.
