Flytec 3040/TT34 * - Manual (Page 14)

Operation manual Flytec 3040 Balloon 13
9. Temperature Transmitter FLYTEC TT34
The radio transmission unit TTT34 is operating with a 9-V battery. The temperature
transmission is switched on automatically as soon as the differential temperature between
the instrument and the envelope temperature (factory default value) is being recognized by
the TT34 unit.
.
Switch on: Differential temperature of > 15ºC or abs. > 50ºC
Switch off: Differential temperature of < 15ºC and abs. < 50ºC
The operation time fort the Alcaline-battery lasts for about 3 years and with a full operation
time of around 200 hours. We recommend, to change the battery at every 2 annual
Envelope maintenance.
9.1 Mounting TT34
The TT34 unit is mounted on the outside of the envelop. The temperature sensor must be
laid to the inner side of the envelope and must be solidly mounted in a way that he
touches the envelope tissue. Improper installation will result in incorrect temperature
readings! Temperature sensors who have no contact with the fabrics will messure a wrong
temperature. The temperature of the hot air, drops or rises inside or otside of the envelope
in a distance of only 1 cm (boundary layer) strongly! Depending on the mounting position it
can quickly result in an temperature error of 10-20 ˚C ! Note the graphic thermal boundary
layer over the balloon fabric in the appendix on page 18
The mounting must be carried out exactly according to the regulation.
(See attachment on page 17)