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Valeport Ltd © 2019

Appendix 2 - Filter Characteristics

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Содержание 803

Страница 1: ...y material form either wholly or in part and the contents of this document and any method or technique available therefrom must not be disclosed to any other person whatsoever without the prior writte...

Страница 2: ...Output Communications 9 2 2 2 Changing the Baud Rate 10 2 2 3 Changing Data Rate 10 2 2 4 Changing the Data Format 10 2 2 5 Reading Serial Number and Software Version 11 2 2 6 Changing the Baud Rate o...

Страница 3: ...t 18 7 4 RS232 Communications Lead with 4 20mA Analogue Output Pigtail 19 8 Appendix 2 Filter Characteristics 19 8 1 801 802 803 Digital Filter Characteristics Attenuation dB 19 8 2 801 802 803 Digita...

Страница 4: ...icle The lightweight design of the instrument leads to minimal effect on the vehicle balance yet permits a depth rating of up to 3000m Titanium version Available as a complete self contained instrumen...

Страница 5: ...32 or RS485 factory set Factory default is 4800 baud 8 data bits 1 stop bit no parity bits Baud rate can be changed by user to 2400 4800 9600 or 19200 String format Knots sXX XX TAB sYY YY cr lf m s s...

Страница 6: ...Material Black Acetal or Titanium Size 92mm x 237mm length Acetal 76mm x 237mm length Titanium Depth Rating 1000m Acetal 3000m Titanium OEM Head and Electronics Size 76mm x 250mm length Depth Rating...

Страница 7: ...Valeport Ltd 2019 Introduction Page 7 1 2 4 3 Dimensions...

Страница 8: ...e place of the polished mark or painted dot in diagram below The approximate measurement volume for the sensor is a cylinder projecting from the face of the sensor of diameter 90mm approximate electro...

Страница 9: ...unications over long cable lengths 2 2 Operation The unit is made operational by applying power A software program ROVLog is provided to allow easy setup and data display but some users may wish to si...

Страница 10: ...on which output mode has been selected The output string format is shown below and is dependant upon the units last entered into the unit sXX XX TAB sYY YY cr lf or sX XXX TAB sY YYY cr lf or sXXXXX...

Страница 11: ...am on to the PC Remove the lid of the Y lead box With the Y lead connected to a PSU and the PC turn the power on and press the push button on the side of the KD 485 unit until the EXE led flashes Rele...

Страница 12: ...ircuit board inside the instrument board number 0801507A If fitted this board gives a standard analogue output of 5V full scale with 11bit resolution for each of the two channels X and Y axes This wil...

Страница 13: ...oth graphical and tabular form in Appendix 2 A characteristic of the filters are that they have a fixed time delay for the output signal i e phase delay is independent of signal frequency If data is b...

Страница 14: ...to the 3 way connection on the 0801509D circuit board labeled RS232 Do not adjust the position of the four way Harwin connector with the red and blue wires If the unit has the optional analogue output...

Страница 15: ...orrectly fitted cable Check connections and try again Illegible characters Incorrect baud rate In RS232 mode check instrument baud rate and HyperTerminal or ROVLog baud rate In RS485 mode check instru...

Страница 16: ...so it advisable to periodically clean the sensor The sensing electrodes should not be covered in grease or any form of insulating substance 6 2 Seal Sizes Underwater Housing End Cap sensor end 2x O R...

Страница 17: ...mmunications Lead SubConn Cable Analogue Signal Sockets in cable box Power In Banana Pins RS232 9 way D type Pin Function Pin Pin Function Pin 1 ve Supply Red plug 2 Analogue X X 3 Analogue Gnd X Y 4...

Страница 18: ...X Right 4 Analogue X ve 4mm socket Red X Right 5 Analogue Y ve 4mm socket Red Y left 6 Analogue Y ve 4mm socket Black Y left 7 RS232 out of unit 2 8 RS232 into unit 3 9 RS232 ground 5 link to 1 6 8 9...

Страница 19: ...Ltd 2019 Appendix 2 Filter Characteristics Page 19 8 Appendix 2 Filter Characteristics 8 1 801 802 803 Digital Filter Characteristics Attenuation dB 8 2 801 802 803 Digital Filter Characteristics Sign...

Страница 20: ...Valeport Ltd 2019 0803805i Model 803 ECM Page 20...

Страница 21: ...Valeport Ltd 2019 Appendix 2 Filter Characteristics Page 21...

Страница 22: ...nnel X 173 Nothing Returns the zero offset for channel Y 174 X_Gain_Factor cr Sets the GAIN_FACTOR for channel X 175 Y_Gain_Factor cr Sets the GAIN_FACTOR for channel Y 176 Nothing Returns the GAIN_FA...

Страница 23: ...put format units mm mm s m m s or knots 213 Nothing Returns Output Format units mm s m s or knots 214 X_DAC_Cal_Knots cr Sets X DAC cal for Knots 215 Nothing Returns X DAC cal for Knots 216 Y_DAC_Cal_...

Страница 24: ...to a sensor sensor axis and electronics The zero counts are shown on the calibration sheet Gain Factor This is the factor by which the sensors counts per metre sec must be multiplied to normalise it...

Страница 25: ...traight line fit 4 Four straight line fit 5 Five straight line fit Thus for example a three line fit calibration for the X channel will be entered in the format shown below note the single space betwe...

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