5 June 2020 CasTemp Wireless including CasTemp Superheat Page 27
4.2.3.2 Push the button on the QUBE CTW module
The link between the CasTemp Wireless instrument and the QUBE CTW module can also be broken
by pressing the button on the QUBE CTW module (see Figure 18: QUBE CTW module). The QUBE
CTW module will not send any data to the CasTemp Wireless instrument anymore. This will generate
a timeout in the instrument and the instrument will return to its start-up state shown in Figure 19: CTW
start-up screen. The CasTemp Wireless instrument is now ready for a new pairing sequence.
4.2.3.3 Remove the QUBE CTW module from the CasTemp sensor
When the QUBE CTW module is removed from the sensor, it will no longer send temperature data.
The CasTemp Wireless instrument detects that it is not receiving data and reports an open circuit as
Figure 30 indicates.
Figure 30: Detection of open circuit
If this lasts long enough, the CasTemp Wireless instrument will break the link between itself and the
QUBE CTW module and will go to the start-up state of Figure 19: CTW start-up screen. The maximum
number of missed transmissions can be set using the parameter menu (Section 5.2.2Configuring the
CasTemp Wireless instrument parameters – sub section: Max. number of missed transmissions).
A CasTemp sensor break will also generate the same report.
4.2.4 Prevent unpairing on the instrument
If configured, (Section 5.2.2 Configuring the CasTemp Wireless instrument parameters – sub section:
Operator Can Unpair), it is impossible to break the pairing between the CasTemp Wireless instrument
and the QUBE CTW module. This is done to prevent accidental unpairings due to power cuts of the
CasTemp Wireless instrument.
The only way to unpair the CasTemp Wireless instrument and the QUBE CTW module in this case, is
by pressing the button on the QUBE CTW module (see Figure 18: QUBE CTW module). This
generates the timeout as described in sections 4.2.3.2. To speed up the timeout, push the button on
the instrument as soon as the instrument misses samples.
A break in continuity by removing from the sensor will also cause unpairing to occur.
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