The temperature-dependent output parameters
of the HMP7 humidity and temperature probe are unavailable when the probe heating function
of HMP7 is active. Therefore the temperature measurement data needs to be provided from an
external source, which can be, for example, any Indigo-compatible probe with a temperature
output. With HMP7 and TMP1 connected to the Indigo80 handheld indicator, you can enable TMP1
to function as the temperature source for HMP7.
Make sure that both probes are in the same environment to get the most
accurate measurement values.
Connect the probe(s) to Indigo80 in any order.
In this example, TMP1 is connected to port 1 of the indicator, and HMP7 to port 2.
Open the
main menu by pressing .
Select Devices > HMP7.
Select Environment settings > Temperature.
Select Read from device > TMP1.
The temperature value read from TMP1 is
now shown in the Environment settings of HMP7.
To stop reading the temperature value
from TMP1, select HMP7 > Environment settings > Temperature > Stop reading.
Exit the menu
by pressing or return to the main menu by pressing .
When you disconnect and then
reconnect the same probes to the same ports in Indigo80, Indigo80 will continue reading the
temperature value from the previously selected probe. The same applies also when you restart
Indigo80 with the same probes connected.