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ZANDER SDI GP 941, Manual, Page: 11 / 24

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ZANDER SDI GP 941 Manual Download Page 11

GP941E 11/01

02.11.01

11

Pin 8

external power supply for palm PC

8. Technical data:

mechanical dimensions:

76 x 33 x 109 mm

weight

300 g

external power supply

10...14V / 120mA

operating temperature

-20...+60°C

GPS receiver

12 channel

geodetic datum used

WGS-84

Flight data recording:

recorded signals

time, barometric altitude, GPS position, GPS altitude
DOP, 2D/3D, engine noise level
with SR940: indicated airspeed, measured wind, next WP

recording interval

4 seconds
10 x 1 second when pressing marker pushbutton

barometric altimeter:

range

-500...+10 000m

resolution

1m

resolution of position

0.25 angular seconds

RAM memory

0.5 MB

recording time

50 hours

recording rate

typical 6.5 KB/hour

engine running sensor

microphone (sensor is standard in GP941)

Lithium battery 3.6V

fixed, for data retention (life time about 15 years)

9V battery

standard alkaline battery, replaceable
for about 20 hours of data transfer to/from PC

Note:

If the GP941 is not used for a longer period of time, it is advisable to remove the 9V battery to avoid
damage due to leaking acid from the battery. If new battery is inserted, use plastic bag again to guard
against leaking battery. The battery compartment is located besides the plug for power supply.

Use a new 9V battery when starting into a new gliding season.

Summary of Contents for SDI GP 941

Page 1: ... data from glider computer SR940 7 6 How to use GP941 8 7 NMEA Output 10 8 Technical data 11 9 Wiring diagrams 12 10 Pin assignments of connectors 14 11 Calibration chart for altimeter of GP941 15 Annex FAI approval document 16 Warning The recorder box must not be opened A security feature will inhibit any valid recording after box was opened The standard two year warranty is expired when box was ...

Page 2: ... waypoint lists and routes can be entered into recorder and brought to the glider where these informations can be transferred to SR940 saving and restoring configuration data of SR940 transfer of additional data from SR940 to recorder which are included in the stored flight data indicated airspeed wind information next waypoint selected If the glider computer SR820D is used together with the GP941...

Page 3: ... the GP941 is off for more than one minute To enter a special mark into the recorded flight data there is a marker pushbutton for the instrument panel Pushing the marker button also adds 10 fixes of 1 second interval to the recorded flight data For normal operation this marker button is not necessary To make the power supply for the recorder safe it is recommended to use always two batteries with ...

Page 4: ...urning off the power and leaving it off for more than 5 minutes or by establishing PC connection Short power cuts will not end a record Important The GP941 records always when power is applied recording is active on the ground as well as in the air independent of speed or altitude During PC connection there is no recording Recording within the GP941 is done in that way that the last 50 hours of re...

Page 5: ...on is also possible with 12V power supply connected Then the 9V battery is not used Important Use only a standard 9 pin extension cable between GP941 and PC The old data cable used to connect old SR940 and SR820D to a PC cannot be used The programs for GP941 are continuously updated so it is not possible to give an accurate descripion on how to use the programs At date April 2001 this description ...

Page 6: ... with the same waypoint numbers must be used Rou tes only store waypoint numbers not the names Up to 6 different configuration settings for SR940 can be stored within the GP941 and can be recalled by SR940 so that several pilots can fly on one glider using their own SR940 configurations Settings 1 to 6 can be read by SR940 but only settings 1 to 3 can be written from SR940 into GP940 With WinGP th...

Page 7: ...date stamp using the internal clock of GP941 to mark when the task was declared At the same time the task is copied into the flight data After declaration of the task the recorder and SR940 may be turned off When power is applied again to the recorder the task data entered last are copied into the flight data record just when recording starts A declared task can be changed as desired up to takeoff...

Page 8: ...ond when the marker button is pressed These marks are in addition to the standard 4 second fix interval Pressing the marker button also initiates a sequence of 10 more measurements with 1 second interval If SR940 announces entering the photo sector or circle an automatic mark signal is transmitted to the recorder which adds 10 additional fixes with 1 second interval to the recording This automatic...

Page 9: ... be read by any person from the recorder A diskette with these data and the written declaration is send to an authorized evaluation center where the flight data are checked for validity and the flight is evaluated The personal information written into the recorder should be ignored as pilot and glider information is always part of the written declaration This would allow that the recorder can be u...

Page 10: ...GP941 are these GPRMC RMC sentence with GPS data PZAN1 0123 ZAN1AA cc barometric altitude meter and serial number of GP941 One NMEA output is connected to pin 8 of the power supply connector Via the data cable to the gli der computer this signal is brought to the instrument panel for further use The GND connection is the minus of the 12V power supply battery Another NMEA output is available at pin...

Page 11: ...000m resolution 1m resolution of position 0 25 angular seconds RAM memory 0 5 MB recording time 50 hours recording rate typical 6 5 KB hour engine running sensor microphone sensor is standard in GP941 Lithium battery 3 6V fixed for data retention life time about 15 years 9V battery standard alkaline battery replaceable for about 20 hours of data transfer to from PC Note If the GP941 is not used fo...

Page 12: ...GP941E 11 01 02 11 01 12 9 Wiring diagrams GP941 with SR940 new version ...

Page 13: ...GP941E 11 01 02 11 01 13 Wiring diagrams GP941 with SR940 SR820D upgrade version ...

Page 14: ...GP941E 11 01 02 11 01 14 10 Pin assignments of connectors ...

Page 15: ... with 12V 120mA minus pin 2 plus pin 5 of 9 pin plug at the rear of the box besides the antenna connector see 10 Pin assignments of connectors The GPS antenna is not connected When power is applied the GP941 starts recording Now the ambient pressure is changed in steps from 0m to 10000m As the recording rate of the GP941 is one sample every four seconds the am bient pressure should stay enough sta...

Page 16: ...ight validation Instead ZAN files produced by WinGP must be converted to IGC format using the latest version of DOS program CONV ZAN EXE When the new version WINGP940 EXE is ready this new Windows program may be used instead of the DOS program Note the DOS programs listed above are also valid for the old ZANDER GP940 flight recorder so these programs replace the old DOS programs made for GP940 The...

Page 17: ...ts Annex A to this code SC3A deals with competition matters annex B to the Code SC3B deals with equipment used in flight validation Annex C to the Code SC3C con sists of guidelines and procedures for Official Observers pilots and other officials involved in the flight validati on process Copies of all of these documents may be obtained from the FAI IGC web sites listed above and links are provided...

Page 18: ...nning of this document CONDITIONS OF APPROVAL Permitted Connections The position of the connectors is described above under Hardware 1 1 External antenna to 9mm circular BNC bayonet connector 1 2 Custom wired 9 pin RS232 female connector to the15 pin male connector on the case For power Pilot Event PEV marker button also connection to a glider computer or display unit where available 1 3 Male 9 pi...

Page 19: ... FR is opened If the FR case has been opened breaching physical security subse quent IGC files will fail the VALI check see para B3 Electronic Security If the internal security mechanism has been activated such as by opening the case any data in the memory will be lost settings will revert to defaults and the electronic security algorithms in the FR will be trashed Any flight data files subsequent...

Page 20: ... glider If it may be difficult to find an OO immediately before takeoff or to witness the landing you should ask an OO to seal the FR to the glider and this can be done at any time or date before flight See para 3 in the conditions of approval Regarding the position of any ancillary displays connec ted to the FR see para 2 1 in the Conditions of Approval which refers to sight lines and the need fo...

Page 21: ...start and finish points Also the NAC or FAI may wish to compare pressure altitudes recorded on the FR for takeoff and at landing with QNH pressures for the appropriate times recorded by a local meteorolo gical office end of Annex A Annex B to IGC Approval dated 30 October 2001 NOTES FOR OFFICIAL OBSERVERS AND NACs PART OF IGC APPROVAL FOR ZANDER GP941 GNSS FR To be read together with the main term...

Page 22: ...ed in Annex C to the Sporting Code SC3C OO s Copy A copy of both the ZAN and IGC files shall be retained securely by the OO such as by immedia tely copying them to a separate diskette or PC card or by the use of the OO s own PC These files shall be retained by the OO in safe keeping for later checking and analysis under NAC IGC procedures Storage media The OO may keep the required data files on a ...

Page 23: ...keoff and landing short duration ENL readings up to 348 have been recorded probably due to wheel rumble Unlike engine running these last only for a short time sho wing a short spike on the noise time trace ENL analysis It is normally easy to see when an engine has been running and when it has not Other data such as rates of climb and groundspeed will indicate whether or not non atmospheric energy ...

Page 24: ... that for a 12 channel GPS system but data analysts and NAC officials should allow for the above when comparing the GPS altitude and pressure altitude records Maximum Altitudes Recorded in the IGC file Pressure Altitude The recorder is designed to have a pressure altitude capability up to 10km 32 808ft Above this altitude figures may be recorded but accuracy is not guaranteed GNSS altitude The GP ...

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