Balloon preparation, Figure 2, Loading weights onto the gas nozzle – Vaisala RS92-KL User Manual
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User's Guide ______________________________________________________________________
14 __________________________________________________________________ M210299EN-D
Preparing the Balloon and Optional Sounding
Accessories
The balloon and optional sounding accessories must be prepared before
connecting the radiosonde battery and thereby activating the
radiosonde. This is necessary because the radiosonde should be
launched within 15 minutes of battery connection.
Balloon Preparation
Follow these steps to prepare the balloon:
1.
Load weights that are needed to obtain the required lift onto the gas
nozzle.
0705-020
Figure 2
Loading Weights onto the Gas Nozzle
WARNING
Read the safety instructions in Appendix A before proceeding.
Normally the balloon lifting gas (hydrogen or helium) is supplied in
gas bottles, but hydrogen can also be produced with a hydrogen
generator. Carefully study the operation and safety instructions for the
gas bottle facilities or the hydrogen generator.
Take extreme caution when handling the inflated balloon.
WARNING
It is recommended that the balloon is prepared in a balloon filling shed.
The balloon filling shed must be well ventilated so that possible gas
leaks flow out of the shed, even in situations when there is no
electricity.