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Campbell 61302V Instruction Manual

Manual is about: Barometric Pressure Sensor

Summary of 61302V

  • Page 1

    Instruction manual 61302v barometric pressure sensor september 2009 copyright © 2009 campbell scientific (canada)corp..

  • Page 2: Warranty And Assistance

    Warranty and assistance this equipmentis warranted by campbell scientific (canada) corp. (“csc”) to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. ***** batteries are not warranted. ***** csc's o...

  • Page 3: Table of Contents

    61302v barometric pressure sensor table of contents 1. Introduction .............................................................................. 2 2. Specifications............................................................................ 2 3. Installation ..........................................

  • Page 4: Introduction

    61302v barometric pressure sensor 1. Introduction model 61302v barometric pressure sensor is a versatile electronic barometer featuring high accuracy, low power, wide operating temperature range, and rs-232 serial data i/o or a calibrated voltage output. Low power consumption and wide temperature ra...

  • Page 5: Installation

    61302v barometric pressure sensor serial output: full duplex rs-232 (standard & ttl levels) 1200 to 38400 baud continuous ascii text, polled ascii text, nmea supply voltage: 7 to 30 vdc 2.8 ma with vout 1.4 ua shutdown (trig=0v) 7 ma with serial i/o (standard) case: fiber-reinforced thermoplastic we...

  • Page 6: Sensor Operation

    61302v barometric pressure sensor 3.2.1. Serial output wiring colour sensor designation datalogger terminal (cr800/850, cr1000, cr3000) white tx comn* rx blue rx comn* tx green reference g red +pwr sw12v (recommended) or 12v black -pwr g clear shield g *the “n” indicates the com port number as shown...

  • Page 7

    61302v barometric pressure sensor if changed from the standard configuration to an analog output, please note that the software vout scale parameter must be set to agree with the hardware voltage output scale jumper (p3) in order to achieve calibrated output. 4.1. Serial output hardware jumper setti...

  • Page 8

    61302v barometric pressure sensor 4.2. Analog output if the 61302v is to be used in a voltage output mode it is recommended that the output range of the sensor be remapped by changing the output range in the sensor software. This is important in maintaining the highest level of measurement accuracy....

  • Page 9

    61302v barometric pressure sensor the trig to +pwr or left floating, as the datalogger program will control the sensor power. 4.3. Software commands software commands sent via serial communication may be used to set operational parameters. The sensor must be configured for serial communication and c...

  • Page 10: Programming

    61302v barometric pressure sensor cmd110 n sets output format. Raw and diag settings are for factory use only. Cmd120 n sets the output multiplier. 10000 represents 1.0000 cmd125 n sets the output offset in hpa x 100 cmd130 n sets the sea level correction in hpa x 100 =[punadjust *( mult / 10000)] +...

  • Page 11

    61302v barometric pressure sensor multipliers to convert the hpa reading to different units for multiply by kpa 0.1 mm of hg 0.75006 in of hg 0.02953 mbar 1.0 psi 0.0145 the weather service and most airports correct the pressure reading at a particular station to what it would be if that station wer...

  • Page 12

    61302v barometric pressure sensor 'green - cr1000 g 'shield - cr1000 g 'declare public variables public bp_poll as string, cr as string public bp_raw as string public bp_string as string public elevation_correction public bp_61302v as float 'default units are hpa 'declare constants const elevation =...

  • Page 13

    61302v barometric pressure sensor 5.2. Voltage output program example the program example illustrates the analog measurement of a 61302v in the configuration shown in appendix a, using a cr1000 datalogger. The sensor is powered for one minute before the top of each hour, at which time the sensor is ...

  • Page 14

    61302v barometric pressure sensor ' switch 61302v sensor off after polling sw12 (0) ' correct barometric pressure value for elevation above sea level (elevation must be in meters) elevation_correction = 1013.25 * (1 - (1 - elevation/44307.69231)^5.253283) bp_61302v_analog = bp_61302v_analog + elevat...

  • Page 15

    61302v barometric pressure sensor 13.

  • Page 16

    61302v barometric pressure sensor appendix b software configuration for voltage output listed below are the steps to remap the measurement range of the 61302v. Notes: • before making any jumper changes be sure that power is disconnected and that you and your work area are free of static discharge po...

  • Page 17

    61302v barometric pressure sensor 4. Use cmd140 to set the upper measurement limit to 1050. Use cmd 142 to set the lower measurement limit to 950. These changes must be saved to flash memory, which is done by entering cmd420. 5. Confirm that the changes have been saved to memory by entering cmd400 1...

  • Page 18

    61302v barometric pressure sensor 16 6. Restart the measurement process with cmd300 2. 7. Once the configuration is complete you can power the sensor down and replace all jumpers required for your specific application..