Vaisala RS92-D Guide de l'utilisateur télécharger pdf (Page 32)

User's Guide ______________________________________________________________________

30 __________________________________________________________________ M210987EN-C

other side in the same fashion as with the folded balloon neck (see

section Attaching the Unwinder to the Balloon on page 29).

Radar Reflector

There is a rubber plate attached to the radar reflector. Attach the

unwinder to this plate.

Non-Totex Parachute

There is a hanger board tied to the parachute. Attach the unwinder to the

bottom of the hanger board.

Releasing the Balloon

In order to ensure 120 minutes of flight time, the radiosonde should be

launched within 15 minutes of battery connection.

Follow these steps to release the balloon:

1. Make sure the suspension string is not tangled.

2. Hold the unwinder to prevent the string from running out before the

release.

3. Release the balloon and allow the radiosonde to lift from your

hand. Keep the string length between the radiosonde and the

unwinder as short as possible.

Checking the Reception

Immediately after the release, check the reception of the radiosonde

frequency on the receiver.

Proceed to monitor the sounding with the sounding system.

Monitoring the Sounding

If you have not already done so, enter the surface observation

information in the sounding system. Refer to the sounding system’s user

manual for detailed instructions on using the sounding system software.

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Vaisala RS92-D Guide de l'utilisateur Page 32