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AML Oceanographic Micro SVT, Руководство пользователя

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AML Oceanographic Micro SVT Скачать руководство пользователя страница 15

User Manual for AML Oceanographic’s Micro SVT Sensor 

 

15 

Command: 

DUMP 

 

This command dumps the instrument’s logged data from memory. The data will be 
dumped as REAL data and is in the following format. 

 
Example: 
>DUMP [ret] 
 
New Cast 
03/05/03 14:23:06:02 1523.74 11.793 
03/05/03 14:23:07:02 1523.75 10.232 
03/05/03 14:23:08:02 1523.77 09.567 
03/05/03 14:23:09:02 1523.78 08.573 
> 
 

Command: 

INIT

 

 
This command clears the instruments memory. 
 

Содержание Micro SVT

Страница 1: ...User Manual for AML Oceanographic s Micro SVT Sensor Micro SVT Sensor ______________ User s Manual Version 1 21 Oct 2004...

Страница 2: ...t Mode 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 2...

Страница 3: ...ing for the Micro SVT 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 CALIBRATION 36 8 1 Sound Velocity 36 8 2 Tempe...

Страница 4: ...on one sheet for ease of use in the field 1 1 THE INSTRUMENT Figure 1 1 Micro SVT with optional 85ms temperature sensor The standard Micro SVT Sensor is a two parameter self contained intelligent sen...

Страница 5: ...the sensor receives an ENTER or RET The data output may be configured to display either unprocessed integers or computed engineering values The Micro SVT Sensor has the option of sampling on command...

Страница 6: ...munications Baud rate 2400 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 Add...

Страница 7: ...orage 40 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 cab...

Страница 8: ...or also incorporates 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 output in engineeri...

Страница 9: ...ds for visible damage Check for a cracked or chipped sound velocity sensor as this will change the calibration of the sensor Check the temperature probe for signs of damage to the capillary tube 4 2 C...

Страница 10: ...rce 4 3 2 Micro SVT logging option If the Micro SVT has been purchased with the logging option it will be equipped with internal memory and an external battery pack Refer to the wiring diagram in Appe...

Страница 11: ...allation and configuration of these programs Both of these programs are supplied with Install Shield to simplify installation If a terminal emulation program such as Hyperterminal Windows or Procomm D...

Страница 12: ...omatically determines the baud rate and configures itself to match The instrument then responds with the header information The header identifies the sensor type firmware version and serial number of...

Страница 13: ...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 enclose...

Страница 14: ...is will set the sample rate for one sample every 30 seconds SET S 5 S This will set the sample rate for one sample every 5 seconds SE S CONTINUOUS This sets the sample rate at the maximum of 25 scans...

Страница 15: ...data from memory The data will be dumped as REAL data and is in the following format Example DUMP ret New Cast 03 05 03 14 23 06 02 1523 74 11 793 03 05 03 14 23 07 02 1523 75 10 232 03 05 03 14 23 0...

Страница 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...

Страница 17: ...Micro SVT 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 SVT will not auto baud and will default to the b...

Страница 18: ...ge 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 time...

Страница 19: ...set scan delay 20 sets the scan delay to 4 seconds In the above example the Micro SVT would power up the sensor boards wait 4 seconds then take a scan of data Micro SVT power up timing diagram Comman...

Страница 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...

Страница 21: ...icro SVT 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 start...

Страница 22: ...ation coefficients Refer to Section 8 and appendices A and B for more information The instruments calibration coefficients are stored in the Micro SVT s memory Accessing the coefficients for viewing o...

Страница 23: ...e c key at the same time 5 1 3 7 Editing the Calibration Coefficients The instruments calibration coefficients are stored in the Micro SVT s memory Accessing the coefficients for viewing or editing ca...

Страница 24: ...k mode with the Pressure and Temperature board Entering talk mode Pressure and Temperature Micro Sensor V1 30 SN 0001 PT set ta 1 234567e 00 dis c display the calibration coefficients Pressure A 0 000...

Страница 25: ...he 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 coefficient...

Страница 26: ...by using the Micro SVT s DUMP command Note The Micro SVT 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 t...

Страница 27: ...is attached Select 8 bits no parity 1 stop 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...

Страница 28: ...nit in the water 6 1 2 Optional Sensor Precautions DO2 Sensor Precautions The YSI DO2 sensor must be properly stored when not in use and re calibrated and maintained regularly to compensate for sensor...

Страница 29: ...stic sensor operating at 4 MHz 4MHz sound waves are quickly attenuated in water and the sensor is highly directional The sensor input is also filtered and gated to minimize acoustic interference 6 2 3...

Страница 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 mu...

Страница 31: ...r 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 de...

Страница 32: ...oblem The temperature sensor readings are incorrect Solutions The temperature sensor is faulty Examine the capillary tube of the temperature sensor for bends pits or cracks If any are found the sensor...

Страница 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...

Страница 34: ...ing a replacement lithium battery for the Micro CTD 7 2 3 Battery dimensions Due to the space constraints of the Micro SVT battery assembly close attention to the battery size must be observed Dimensi...

Страница 35: ...y 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 produce a sharp volt...

Страница 36: ...his data is applied to a curve fitting algorithm to produce calibration coefficients Each set of coefficients are permanently stored in the instrument s memory Calibration coefficients are not interch...

Страница 37: ...than authorized 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...

Страница 38: ...User Manual for AML Oceanographic s Micro SVT Sensor 38 APPENDIX A Drawings...

Страница 39: ...ect the Micro SVT Sensor to the data cable Connect the data cable to the serial port of the computer If the Micro SVT Sensor is externally powered connect the data cable power leads to a 12 volt DC su...

Страница 40: ...raphic Once the prompt appears the Micro SVT 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...

Страница 41: ...ram will create a sub directory named PROCOMM on the selected drive To install PROCOMM on Drive C place the disk labelled PROCOMM in the appropriate floppy drive Log to that drive then type INSTALL C...

Страница 42: ...20 COM1 21 COM2 22 COM3 23 COM4 24 Save Changes YOUR CHOICE Press ESC to return Figure E 1 Communication parameters window in PROCOMM If all cables have been connected properly and the appropriate bau...

Страница 43: ...program for 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 Smar...

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