Fiche de vie glider potame (Slocum #070)

Transcription

1 Fiche de vie glider potame (Slocum #070) Date Lieu Objet Document de référence Observations 12/01/07 LPO Brest Shipped by WRC via Nantes Airshipped from Boston / Paris / Nantes and then truck Nantes to Brest. Nantes is the closest airport with cargo facilities. Due to the box sizes, it can only go in a cargo. Open the box and visually inspect the glider and the box content. Nothing to note /01/07 LPO, Brest Power on the glider for the first time Compte rendu de préparation et déploiement d un planeur Spray et du Slocum profond du LPO en Méditerranée Occidentale dans le cadre de MERSEA WP3, T.Terre, P.Lherminier, February 2007 Activate the SIM Iridium card. Change the autoexec with glider name and phone number to call. Check functions : pump, GPS, Iridium calls. Check dockserver 28/01/07 LPO, Brest Ship to Mallorca, Imedea for Med Door to door shipping by special truck deployment 30/01/07 IMEDEA, Calanova Prepare and ballast Check CTD + oxygen sensor 31/01/07 IMEDEA, Calanova Check ballast for potame Verification of pool water characterisitics showed a significance diffrence with the previously assumed numbers. 01/02/07 Off Soller, Mallorca First try to pdeploy the glider but cancelled Deepy alone was deployed due to bad weather 02/02/07 Off Soller, Mallorca Deploy the glider but unsuccesfull. Decide to get it back to Brest for pressure tank tests. During the first try of the mission at 30 m, the glider never came back to the surface due to a bad functionning of the vehicle pressure sensor. Vaseline was introduced in the capillar for corrosion problem but it prevents the pressure to be correctly transmitted to the sensor. Back to shore with the glider. 04/02/07 IMEDEA, Calanova Prepare for shipping back to Brest 18/02/07 LPO, Brest Glider back to lab Door to door truck shipping with the same carrier 02/03/07 LPO, Brest Open and separate the 3 sections This is to change the vehicule pressure sensor capillar tube 1/5

2 05/03/07 LPO, Brest Dismount tube and check the pressure sensor 12/03/07 LPO, Brest Replace the capillar tube and check the overall pressure sensor circuit. Close the glider and put a vacuum at 7.4 inhg 13-16/03/07 LPO, Brest Check the vacuum is not decreasing. record Vacuum and internal temperature. Open the glider again to prepare the pressure tests by setting a cable for communication thru the pressure tank 19-20/03/07 LPO, Brest C. Jones visit to LPO Pressure tank tests while running the pump at 250 db and 1000 db Pool trials 12-20/04/07 OOB, Banyuls Preparation and deployment with N/O Nereis 17/04-18/06 Western Mediterranean Contribution to the convection monitoring with NOC and LOCEAN teams Report on Clayton Jones visit to Ifremer/LPO, T.Terre, march 2007 Compte-rendu de récupération d un planeur Spray et de préparation et déploiement du Slocum profond du LPO en Méditerranée Occidentale dans le cadre de Mersea WP3, T.Terre, mai 2007 Report on operations with Slocum Potane (unit #70) in Western Mediterranean Sea. T.Terre, July 2007 Vaseline clearly seen at the entrance of the pressure sensor. Check pressure variation with vacuum pump and nitrogen injection (adtest) Same vacuum pump and nitrogen use Vehicle pressure sensor OK Pump ran OK in presure tank Pool tests showed offset between vehicle pressure sensor and SBE CTD pressure sensor Pump was set OUT OF SERVICE due to an OUT OF DEADBAND error (later corrected by soft) Shipping door to door with Ifremer van Start in mission without DO sensor running. Set up Later by changing sbdlist.dat Diificulties to connect with Iridium : got an abort MS_ABORT_DEVICE_ERROR T18:43:57 18/05 Leak detect Abort; Recovery and check; Loose screws shortening the leak detect sensor! Redeploy on 19/04 Start in mission without DO sensor running. Set up later by changing sbdlist.dat Difficulties to connect with Iridium : got an abort 06/05 : MS_ABORT_DEVICE_ERROR T18:43:57 20/05 : Deep engine out of service OOD:oil_volume:OUT OF DEADBAND: M_su: C_su: change f_de_oil_vol_deadz_width from 40 to something bigger 10/06 : abort due to a bad syntwx in a mafile. 2/5

3 18/06/07 OOB, Banyuls Recovery Compte rendu de récupération d un planeur Slocum profond du LPO en Méditerranée Occidentale dans le cadre de MERSEA WP3, T.Terre, juin /09/07 LPO, Brest Pressure tank tests and batteries discharge Report on Iridium, pump test and batteries discharge after Medterranean Sea dployment During all the deployment low success in Iridium comms ~20 % low H-moment as first cause 2 nd cause could be turned air bladder? Questions raised : 1. Test of Iridum link 2. purge of deep engine return to WRC? 3. air bladder attitude, does oxygen sensor have an effect? 4. Cycles the pump at 1000 db in pressure tank to empty the lithium batteries 5. Change pressure hull from aluminium to composite? Run the pump for 140 cycles at 100bar with the batteries used during the experiment. Discharge the batteries on resistive loads 20/10-4/11 2 nd EGO Workshop and Glider School, Mallorca Potame send as instrument for the school Transport Brest-Mallorc-Brest by Ifremer van, driver TT /11/07 Shipping to USA Potame is sent back to WRC Air purge + switch to composite hull 26/11/07 Delivered to WRC Thanksgiving around! 21/12/07 Shipping WRC to LPO 15/01/08 Delivered to LPO List of upgrades : - composite hulls for FW/AFT sections - peek for CTD pressure sensor circuit - new CTD pressure transducer block - new vacuum plug - new vacuum tool - suppress pinger compense weight by lead bottle - revise altimeter (170 khz) block - change some components - new sofware version - full tests in Ashumet Pond 22-23/01/08 02/02/08 Shipping Brest-Toulon Compte-rendu de préparation et déploiement d un planeur Slocum profond du LPO en Méditerranée occidentale dans le cadre de MERSEA WP3., T.Terre, février 2008 Shipping Brest-Toulon on 22-23/01 by Ifremer van Banyuls on 26/01 3/5

4 23-25/01/08 Ifremer, Toulon Preparation for EGO deployment in gulf of Lion Training on air purge in the field 26/01/08 Shipping Toulon - Banyuls OOB, Banyuls End of preparation for deployment Shipping Toulon-Banyuls on 26/01 by Ifremer van 27/01/08-28/01/08 2 wires on connector 5 points i.e. cable for the optode are broken. No tool to redo the connector soldier the wires?! 29/01/08 Off shore Banyuls Deployment with Nereis II No problem except a false alarm with the altimeter. 1 CTD with 5 samples at 5 depths OOB, Banyuls Pilot the glider while PLH is away Dives to 300, 500, 800 and 1000 m. 30/01-01/02/08 29/01-07/04 Western Mediterranean Pilots PLH & TT Problems encountered - 04/02 abort device_error due to optode ; turn it off - 16/02 abort same_depth : landing on the bottom during the slope approach off Barcelona - 27/02 abort device_error : link to the pump but happens once and did nothing - 04/03 abort device_error : link to the pump send a command to reset a flag on Potame!put x_de_avg_oil_vol_err_on_descent /03 abort no_tickle : Potame suddenly too light cant dive; very bad waetaher, not able to connect for 4 days - 08/04 abort overdepth : still not able to dive change the pump volume to fix the case 27-28/03/08 Shipping Brest-Banyuls Compte-rendu de récupération de 2 planeurs Slocum profonds en Méditerranée occidentale dans le cadre de MERSEA WP3., T.Terre, février /03/08 OOB, Banuyls Recovery of Himilcon with Nereis II Recovery of Potame and Himilcon Problems with Himilcon - its 2 wings were broken - Heavy corrosion!! 4/5

5 07/04/08 OOB, Banyuls After a week, waiting for the good weather window, recovery of Potame with Nereis II 08/04/08 Shipping Banyuls Brest 18/04/08 LPO, Brest Pool test : deploy Potame together with an SBE25 to post calibrate the CTD. Oxygene and salinity samples. 10/11/08 Shipping to USA Need repair on : - Air purge - Optode connexion - Big connector Problem with Potame - Its 2 wings were broken I is the origin of the problem encountered 05-08/03/08 during the bad weather. - Corrosion on the nose Ifremer van Rapport de Stage J.Burdallet. Bend a pin on the big connector! 5/5