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AML Oceanographic Micro SVP, User Manual

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AML Oceanographic Micro SVP User Manual Download Page 7

User Manual for AML Oceanographic’s Micro SV & P Sensor 

 

7 

 
 

Weight: 

 

398 g (0.88 pounds) in air for Acetal 

 

 

 

 

0 g (0.0 pounds) in water for Acetal 

 

 

Environment:   

operating: -2 to 40ºC (28 to 104ºF) 

 

 

 

 

storage: -40 to 60ºC (-40 to 140ºF) 

Connectors: 

 

 

Bulkhead connector:  IMPULSE

tm

 MCBH-8FS with 24 AWG 

 

 

Dummy plug:   

IMPULSE

tm

 MCDC-8-MP 

 

 

Shorting plug:   

IMPULSE

tm

 MCDC-8-MP/S, pins 6 and 7 are shorted, 

molded red 

 

 

Com cable connector:  IMPULSE

tm

 PMCIL-8MP, pins 6,7 and 8 are shorted, 2 

meter cable length, 22 AWG with DB-25 
connector 

 

 

Retainer ring:   

IMPULSE

tm

 DLSMC-F 

 

 

Materials: 

 

Stainless Steel, neoprene, polyurethane, acetal 

 
 

Summary of Contents for Micro SVP

Page 1: ...User Manual for AML Oceanographic s Micro SV P Sensor Micro SV P Sensor ______________ User s Manual Version 1 1 Oct 2004...

Page 2: ...e 12 5 1 1 3 Raw Output Mode 13 5 1 2 Command Summary 13 5 1 3 Advanced Commands 16 5 1 3 1 Display Commands 16 5 1 3 2 Set Commands 16 5 1 3 3 Set Scan Options 19 5 1 3 4 Analog Board Commands 20 5 1...

Page 3: ...e Micro SVP 34 7 2 2 Recommended Battery Rating for the Micro SVP 34 7 2 3 Battery Dimensions 34 7 2 4 Voltage Capacity 34 7 2 5 Current Capacity 34 7 2 6 Maximum Current Sourcing Capabilities 35 8 CA...

Page 4: ...Sensor In addition appendices at the back of the manual detail any unique configurations for the instrument Unique configurations include such things as calibration coefficients additional sensors cu...

Page 5: ...ommunicate with the sensors and communications interface board The communications interface board is normally an RS 232C board Optional communication boards include RS 485 and TTL Through the communic...

Page 6: ...to 38400 8 data bits no parity 1 stop bit Data type ASCII text Optional RS 485 autobaud communications Baud rate 2400 to 38400 baud 8 data no parity 1 stop bit Data type Addressable binary network fo...

Page 7: ...to 60 C 40 to 140 F Connectors Bulkhead connector IMPULSEtm MCBH 8FS with 24 AWG Dummy plug IMPULSEtm MCDC 8 MP Shorting plug IMPULSEtm MCDC 8 MP S pins 6 and 7 are shorted molded red Com cable conne...

Page 8: ...ity and pressure sensors incorporate thermal compensation The output voltage must be converted to a digital signal raw output and then the calibration coefficients must be applied to calculate the out...

Page 9: ...device An AML supplied data cable will link the two Refer to the wiring diagram in Appendix C At one end of the cable is a DB25 or DB9 female connector that plugs into the computer s serial port and...

Page 10: ...er on to the instrument Power for the Micro SVP sensor is turned off if the there is no shorting plug or data power cable plugged in to the battery pack Figure 4 3 2 Micro instrument with battery pack...

Page 11: ...rument is connected set the communications format to 8 bits no parity 1 stop bit and select a baud rate between 2400 and 38400 baud Apply power to the instrument and press the enter key The standard M...

Page 12: ...ternal computer The instrument automatically determines the baud rate and configures itself to match The instrument then responds with the header information The header identifies the sensor type firm...

Page 13: ...ommands are in the form of standard English words Commands can be entered in upper or lower case letters followed by an ENTER The minimum letters of the command that the instrument will recognize are...

Page 14: ...This sets the sample rate at the maximum of 25 scans per second Command SET INCREMENT INC This command sets the pressure increment that the Micro SVP uses when logging data Units are in dBars Note dB...

Page 15: ...e Example DIS S sample rate is 1 seconds Command DIS INC This will display the current pressure increment setting Command DUMP This command dumps the instrument s logged data from memory The data will...

Page 16: ...eout is disabled Startup delay is 0 Header is displayed Start up in prompt mode Characters reception is enabled Command DIS MEMORY D M This command will display the current memory status Example dis m...

Page 17: ...Micro SVP will try to determine the baud rate when the enter key is pressed before it defaults to the baud rate set by the value of b If a 0 the Micro SVP will not auto baud and will default to the b...

Page 18: ...age return key and power up the unit then from the prompt issue the SET RXON command Command SET RXON Enable reception of characters at the next power up Command SET TIMEOUT nn SE T nn Where nn is tim...

Page 19: ...set scan delay 200 sets the scan delay to 4 seconds In the above example the Micro SVP would power up the sensor boards wait 4 seconds then take a scan of data Micro SVP power up timing diagram Comma...

Page 20: ...ALOG 1 SE A 1 This command will enable the displaying of analog channel 1 when the analog board has been enabled with the SET ANALOGON command Analog channel 2 data will not be displayed or logged Com...

Page 21: ...he Micro SVP to output data at power up with a baud rate of 9600 set detect 05 disable the auto baud and default to 9600 baud at power up set startup noheader do not display a header at power up set s...

Page 22: ...he prompt mode 5 1 3 6 Accessing the Calibration Coefficients Refer to Section 8 and Appendices A and B for more information The instruments calibration coefficients are stored in the Micro SVP s memo...

Page 23: ...ode Press the ctrl key and the c key at the same time 5 1 3 7 Editing the Calibration Coefficients The instruments calibration coefficients are stored in the Micro SVP s memory Accessing the coefficie...

Page 24: ...alk mode with the Pressure and Temperature board Entering talk mode Pressure and Temperature Micro Sensor V1 30 SN 0001 PT set pa 1 234567E 00 set the a coefficient dis c display the calibration coeff...

Page 25: ...de with the analog board Entering talk mode Analog Micro Sensor V1 30 SN 0003 A set 1a 1 set the a coefficient of channel 1 set 2a 2 set the a coefficient of channel 2 dis c display the calibration co...

Page 26: ...Micro SVP Sensor will not log data into its memory unless the instrument s SV sensor detects that it is in water and the shorting plug is inserted into the battery pack 5 1 4 Using Integrated System...

Page 27: ...bit and the desired baud rate Power the instrument and then press enter The instrument will respond with an identification header and then a prompt Commands can then be sent to the instrument as desir...

Page 28: ...use errors in the data To avoid bubbles on the transducer face tilt the sensor slightly when immersing the unit in the water 6 1 2 Pressure Sensor Precautions Though the pressure sensor can survive pr...

Page 29: ...d velocity sensor are AC coupled to the water to reduce low frequency electrical noise in the environment High frequency electrical noise can sometimes cause errors in the data 6 2 2 Acoustic Interfer...

Page 30: ...C Electrical Wiring Diagram The serial port chosen is incorrect Most IBM computers have only one serial port therefore the user should choose the COM1 setting However if a COM2 port exists the user m...

Page 31: ...nsor readings are noisy Solutions There are nearby electromagnetic noise sources Move the instrument to a new location or move the noise source Refer to section 6 2 If only one sensor reading is noisy...

Page 32: ...ange of the sensor may have been exceeded The pressure sensor may require re calibration or replacement Contact the factory for support The pressure sensor is faulty Examine the stainless steel diaphr...

Page 33: ...please refer to Appendix C Figure 7 2 Battery compartment Note The end cap contains o rings Take care to avoid scratching or getting dirt on the o ring surfaces Wipe dry the battery pack if it is wet...

Page 34: ...when considering a replacement lithium battery for the Micro SVP 7 2 3 Battery Dimensions Due to the space constraints of the Micro SVP battery assembly close attention to the battery size must be ob...

Page 35: ...lithium battery defines how much current the battery can source before its voltage will drop significantly Batteries with a low rating of Maximum recommended continuous currents below 800ma may produc...

Page 36: ...e fitting algorithm to produce calibration coefficients Each set of coefficients are permanently stored in the instrument s memory Calibration coefficients are not interchangeable Each set is unique t...

Page 37: ...ed personnel This warranty is the only warranty given by AML Oceanographic No warranties implied by law including but not limited to the implied warranties of merchantability and fitness for a particu...

Page 38: ...User Manual for AML Oceanographic s Micro SV P Sensor APPENDIX A Drawings...

Page 39: ...User Manual for AML Oceanographic s Micro SV P Sensor 39...

Page 40: ...AL Connect the Micro SVP Sensor to the data cable Connect the data cable to the serial port of the computer If the Micro SVP Sensor is externally powered connect the data cable power leads to a 12 vol...

Page 41: ...raphic Once the prompt appears the Micro SVP Sensor is ready to accept instructions Refer to the RS 232 Command Summary section 5 1 2 Caution Some versions of Hyperterminal have a bug which does not a...

Page 42: ...User Manual for AML Oceanographic s Micro SV P Sensor 42...

Page 43: ...the correct port and apply the following settings 8 bits no parity 1 stop bit Select the desired baud rate Select the desired sampling rate and logging rate Select the connect command Smart talk will...

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