Vaisala RS41-SG, Руководство пользователя

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3. Make sure that the unwinder is firmly attached to the radiosonde.
3.7 Checking the LED Light
After preparing the radiosonde for the sounding, check the radiosonde status by checking
the LED light on the radiosonde cover. When the green LED light is steady, the radiosonde is
ready for the release. The LED light will switch off automatically after the launch. See the
table below for more detailed information.
Table 4 RS41 LED Lights
LED Light Meaning
Green LED is blinking. When the green LED is blinking, the reconditioning of the humidity sensor and
sensor checks are in progress and/or the radiosonde is not receiving GPS signal. To
receive the GPS signal, take the radiosonde outside with line of sight to GPS
satellites.
Green LED is steadily lit. 1. The radiosonde is ready and works fine, determined by the radiosonde in-built
diagnostics. The diagnostics cover, for example, temperature and humidity
sensors.
2. GPS satellites are detected. Once GPS signal has been found after radiosonde
start up, the LED light becomes steady green. The LED may start blinking
again due to possible GPS blind spots (for example, inside a balloon shelter),
indicating that the radiosonde should be taken outside with line of sight to
GPS satellites before launch.
3. The steady green LED indicates that the telemetry from RS41 is working.
Red LED is lit. Error. Check the sounding software for any error messages.
RS41-SG and RS41-SGP User Guide M211667EN-G
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