P•Xchange™ User Manual
Contents
1. PeXchange User Manual Document Version 1 4 Dated 13 January 2010 User Manual for AML Oceanographic s PeXchange Table of Contents A ANOVG OW CO TCM US oad eae ieean ete acate a bats tie tate eaten eeea testa ees l General Descripiom Or ME SENSO acneea e 2 Which Manualsdo T Start WII lecciona 2 SMpPpAS and IRCCS 1 1110 opia e Er a e E 3 Re c iyving the Sensi nessen 3 SHIPPING teens Oranian o a oa 4 Usine the Pe Xai oe aoseun aN r EN 5 Pressure AUN OS u ia tesndesiuiiy octal eliomsnsutnaetutacestaaen 5 Attaching the PeXchange Sensor cccccsssecccceeeceeeseeeeneeesenesenen 5 Remoyine the Pex change Sens0ruscroe a 5 Pre Deployment Procedure Si 4 acceacis weed n Hassetaenematestgai 6 Post Deployment Procedures sesira E E E 6 Periodic Marmite nah cascs e T E E 6 Inspecting amp Replacing the O ring nssesssensssesssersseerssersssereserssseress 6 PeX chance MC Omnia arere a 7 Talking tothe PeX Chance Sens OF sce cecesssitneairectectnicentinitnatlatarm denen 7 Specie Commands Of Mere Sh renieae E E 8 CUSIOM el SUD DOG a o a se aasaetioneean tn acateesieseaaeon 9 PROUT C SINC OCIS ceea E a alana aster utdenda ca titusare 9 AML Oceanographic Contact Info ceecccsseecccseseeeensecceeeseeaenees 10 User Manual for AML Oceanographic s PeXchange General Description of the Sensor The AML Oceanographic s PsXchange sensor is the industry s only field swappable pressure sensor2. The PeXchange sensors store all pertinent sensor manufacturing and calibration data within the sensor This allows the sensor to be swapped between any PeXchange enabled instruments without having to manually update the calibration coefficients Calibration sheets can be printed on demand by any instrument connected to the SeaCast software Re calibrations only require the sensor not the instrument to be shipped to the service centre PeXchange sensors are engraved at the factory with a unique serial number and the pressure range of the sensor as shown in the image below Serial Number Pressure Range PeXchange eres Which Manual do Start With AML Oceanographic s sensors and instruments may be shipped with several manuals e An instrument manual ie SV Plus v2 Minos SVP which provides an overview on how to use and maintain the instrument e A software manual ie SeaCast which provides instructions on how to use the software to configure the instrument and review instrument data and e An Xchange manual for instruments equipped with Xchange sensors which provides an overview on how to install and maintain Xchange sensors If you are configuring an instrument for field use or lab test we recommend that you begin with the SeaCast manual If you are focussed on instrument maintenance we recommend that you begin with the instrument manual If you are wishing to swap a PeXchange sensor we recommend
3. sensor is limited to deployments of 500m depth or less Conversely a 6000m instrument equipped with a 500 dBar 0 500m PeXchange sensor is also limited to deployments of 500m depth or less It is desirable to optimize the accuracy of pressure measurements by selecting the PeXchange pressure range that most closely matches the depth of the deployment Caution Do not exceed the specified pressure ratings of the PeXchange sensor or the instrument housing Overpressure can result in damage to the PeXchange sensor and the instrument Attaching the P Xchange Sensor select a PeXchange pressure range that is compatible with your deployment Ensure that the instrument socket is clean and dry Check the sensor s o ring for cleanliness see below Inspecting amp Replacing O Rings Align the sensor to the sensor mount Place the sensor into the mount Rotate the sensor until it drops down into the mount enough to allow the blue locking sleeve threads to engage the mount threads e Screw down the blue locking sleeve until it stops The bottom of the sleeve should be within 1 mm of the instrument end cap Removing the P Xchange Sensor lf the sensor has been used in salt water rinse the sensor in fresh water Dry the sensor before removal to protect the connector Unscrew the blue locking sleeve Lift the sensor out of the mount Ensure that the instrument socket is dry and clean using compressed air if necessary
4. Immediately insert the blanking plug in the PeXchange socket on the end cap OR insert a replacement PeXchange sensor User Manual for AML Oceanographic s PeXchange Pre Deployment Procedures e 4to 6 weeks ahead o Ensure that the installed PeXchange sensor has the correct pressure range for the deployment If necessary swap with another calibrated PeXchange sensor with the correct range o Use the receiving checklist to verify the sensor is in good working order o Verify the calibration is valid for the duration of the deployment Have the sensor re calibrated if required or swap with another calibrated PeXchange sensor e Before leaving the jetty o Ensure the PeXchange sensor is properly mounted on the instrument The blue locking sleeve should be fully threaded onto the sensor mount of the instrument o Test the instrument to ensure the PeXchange sensor is functioning properly Post Deployment Procedures e Ensure the sensor is clean and dry before storage Periodic Maintenance Periodic maintenance will prolong the life of the sensor The following is recommended e f the sensor is dirty or oily use warm soapy water and allow the instrument to soak before cleaning with a rag or soft brush Rinse with fresh water e Before each deployment o Check the sensor is properly seated on the instrument o Check the sensor for cleanliness or damage e After each deployment o Clean and rinse the sensor using fresh wat
5. P Xchange Commands When using AML OCEANOGRAPHIC s SeaCast application software knowledge of the instrument command set is not usually necessary However the operator can issue text commands to the instrument as well as to specific sensors on an instrument This can be done from SeaCast or any terminal emulation program such as HyperTerminal There is additional functionality on PeXchange equipped instruments with respect to the command set To use these commands the user must first establish direct communication with the PeXchange sensor Talking to the P Xchange Sensor There are two ways to accomplish direct communication with the PeXchange sensor They are 1 On a Micro P instrument with the PeXchange option the PeXchange commands can be given directly to the instrument Simply type the commands into the terminal emulation program User Manual for AML Oceanographic s PeXchange 2 On a Minos SVP or any Micro instrument with multiple sensors that have the PeXchange option the TALK command is used to direct communications to the PeXchange sensor Use the following procedure to accomplish this Entering Talk Mode o Establish communications with the instrument o Senda DETECT command to the instrument The instrument will return a list of sensors detected on each slot of the instrument Note the slot number for the PeXchange sensor o Send a TALK 1 command to the instrument
6. Replace the 1 with the appropriate slot number if required This command directs subsequent communications directly to the sensor board Exiting Talk Mode o To exit talk mode simultaneously press the CTRL and C keys Specific Commands of Interest DIS OPTIONS Displays the current settings for the PeXchange DIS SV CAL Displays the calibration sheet for the sensor SET FORMAT 43 sets the SV format to 4 digits ahead of the decimal place and 3 digits after the decimal place SET FORMAT 42 sets the SV format to 4 digits ahead of the decimal place and 2 digits after the decimal place SET FORMAT 41 sets the SV format to 4 digits ahead of the decimal place and 1 digits after the decimal place SET FORMAT 40 Sets the SV format to 4 digits with no decimal User Manual for AML Oceanographic s PeXchange Customer Support Troubleshooting Instrument fails to detect the sensor Is the sensor properly mounted on the instrument o Is the sensor fully screwed down o Check the connector on both the sensor and the instrument for corrosion or damaged contacts o Cycle the instrument power Call the nearest service center for support Pressure sensor is noisy Check the connector on both the sensor and the instrument for corrosion or damaged contacts Is the instrument subject to vibrations Are there pressure eddies in the water being tested Is there a nearby source of electromagnetic interference Examples are arcing brushes on electric m
7. may also be submitted through the portal To access the Customer Portal please navigate to the Support button located on the top right hand side of AML Oceanographic home page select the Customer Centre from the options on the drop down menu and follow the instructions provided Mailing and Shipping Address AML Oceanographic Ltd 2071 Malaview Ave sidney BC Canada V8L 5X6
8. er e Before installing on an instrument o Check the sensor for cleanliness or damage o Check the o ring under the blue locking sleeve of the sensor for cleanliness and silicon grease e Removing from an instrument o Ensure the sensor is clean and dry before removing o Install a new sensor or blanking plug into the instrument to protect the contacts of the sensor mount o Safely store the sensor e Yearly o Send the sensor to a service centre for diagnostics and re calibration Inspecting amp Replacing the O ring It is crucial to keep the PeXchange sensor s o rings clean and greased Any fibres or dirt on or around the o rings and grooves will allow water into the connector and damage both the sensor and the sensor mount To gain access to the o rings perform the following steps e Remove the sensor from the instrument e The o rings should be slick with grease If the o rings are dry apply silicone grease e Inspect the o rings for dirt Clean and reapply grease if necessary User Manual for AML Oceanographic s PeXchange e Inspect the o rings for nicks and cracks If any are found the o rings must be replaced Use 2 015 N70D Buna Nitrile o rings Apply silicone grease to the o rings before replacing Caution Do not use a sharp instrument to remove the o rings If the o ring grooves are scratched the o rings will not provide a waterproof seal The o rings can be removed easily with bare hands as shown below O ring Removal
9. noise is proportional to the range of the sensor For example the data shown below shows the output from a 4000 dbar sensor Here the barometric deviation from standard atmosphere is about 0 13 dbar and the noise is 0 09 dbar rms User Manual for AML Oceanographic s PeXchange 0000 006 0000 237 0000 083 0000 083 0000 237 0000 160 0000 083 0000 083 0000 006 0000 237 0000 006 0000 237 0000 160 0000 160 0000 160 The accuracy of the PeXchange sensors is 0 05 of the full scale range of the sensor For comparison accuracies for the PeXchange sensors at time of calibration are as follows Range dbar Accuracy dbar 5000025 Shipping the Sensor e f shipping for repair or recalibration obtain an RMA number from the service centre Please refer to page 10 for contact details e Pack the instrument in its original shipping box to prevent damage during shipping User Manual for AML Oceanographic s PeXchange Using the P Xchange This section of the manual discusses how to attach and disconnect the PeXchange sensor This section also identifies pre deployment and post deployment procedures as well as periodic maintenance requirements Pressure Ratings Pressure ratings are given for both the PeXchange sensor and the entire instrument Any deployment should never exceed the lower of these two pressure ratings For example a 500m instrument equipped with a 6000 dBar 0 6000m PeXchange
10. otors radio transmitters switching power supplies and faulty cathode ray tube monitors Check the power supply to the sensor for noise Ideally the power supply should have less than 30mV of noise The pressure sensor shows an offset error Is the offset due to barometric pressure The P Xchange sensors are calibrated to output 0 dbar at one standard atmosphere 10 1325 dbar absolute If the barometric pressure deviates from one standard atmosphere then the P Xchange sensor will output the difference lf the ZERO command has been used to match the instrument to the atmospheric pressure the offset will continue to be applied until the ZERO OFF command is used to remove any barometric corrections User Manual for AML Oceanographic s PeXchange AML Oceanographic Contact Info Service To request an RMA or technical support Email service AMLoceanographic com Phone 1 250 656 0771 Fax 1 250 655 3655 Sales For all general sales inquiries Email sales AMLoceanographic com Phone 1 250 656 0771 Fax 1 250 655 3655 Website http www AMLoceanographic com Customer Portal The Customer Portal allows AML Oceanographic customers to download calibration certificates and other related instrument sensor documentation view instrument sensor details and diagnostic reports It also allows AML Oceanographic customers to gather technical documentation troubleshooting guides etc RMA requests or technical support queries
11. that you read this manual User Manual for AML Oceanographic s PeXchange Shipping and Receiving Receiving the Sensor When the sensor is received at a new location it is prudent to perform the following steps to ensure the sensor has not been damaged in transit e Check the shipping container for signs of damage e Check for damage on the sensor itself o Check the sensor for dents or dirt o Check the connector for corrosion or dirt e Connect the sensor to an instrument Connect the instrument to a computer using the data cable Launch SeaCast AML Oceanographic s application software Verify that the instrument tab in SeaCast is displaying accurate PeXchange sensor information The PeXchange sensor serial number and last calibration date should be displayed Applied Microsystems SeaCa id we zamm j o at Tnetriiment Fee cai Led Decree pap RAR iene ta Sirument sE tL a wiew Data a P xchange Jooioo2 Tye Sensor Calbrated Range Accuracy Oo f Print Certificate AN TS PET E NEL ee e T e On the View Data page select Monitor and allow the instrument to sample some data as shown below In air the PeXchange sensor should read approximately zero dbar PeXchange sensors are calibrated to read zero at 1 standard atmosphere There will be a slight offset in the pressure displayed due to barometric pressure There will also be some noise in the data The magnitude of the
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