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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)] + [(Offset /100) + (Correction Sea Lvl 
/ 100)] 
 

CMD140 n

 sets the Vout Pressure Range HI 

CMD142 n

 sets the Vout Pressure Range LO Vout Pressure 

Range HI must be greater than Vout Pressure Range LO 

CMD144 n

 sets the Vout Scale. 2 = 0 to 2500 mV. 5 = 0 to 5000 

mV. This parameter setting must agree with the physical P3 
jumper position to achieve calibrated voltage output. 

CMD150 c

 sets the poll address character. Any ASCII character 

from ‘0’ (ASCII 48) to ‘z’ (ASCII 122) may be used. 

CMD160 n

 sets the baud rate. Acceptable values are 38400, 

9600, 4800, 2400, and 1200. Note that the baud rate change 
occurs immediately after the command is received. Therefore, in 
order to continue communicating, the serial communication 
program that issued the command must also change to match. 

CMD300 n

 causes the sensor to pause or resume measurement. 

1 = Stop, 2 = Run. 

CMD400 n

 causes the sensor to issue a report summarizing 

parameter settings. 
1 = RPT text 
2 = RPT code only 

CMD410

 retrieves the internal calibration table. This is 

for factory use only. 

CMD420

 burns new parameter settings to flash memory.  This 

step must take place to retain changes otherwise parameters will 
revert to the previous values at the next power up. 

 

5. 

PROGRAMMING 

The 61302V draws upwards of 7mA of power when activated. 
Depending on your power supply it may be beneficial to conserve 
power. This can be achieved by powering the sensors on and off. 
This is done through the switched 12V port on the CR10X, 
CR23X, CR800, CR850, CR1000, and CR3000.  This is used in 
the following program examples. 
 
The default measurement units are Hectopascals (hPa).  The 
units can be converted by adding programming which makes use 
of the following conversions. 

 

8

Содержание 61302V

Страница 1: ...INSTRUCTION MANUAL 61302V Barometric Pressure Sensor September 2009 Copyright 2009 Campbell Scientific Canada Corp...

Страница 2: ...glect accidents of nature or shipping damage This warranty is in lieu of all other warranties expressed or implied including warranties of merchantability or fitness for a particular purpose CSC is no...

Страница 3: ...3 3 2 1 Serial Output Wiring 4 3 2 2 Analog Output Wiring 4 4 SENSOR OPERATION 4 4 1 Serial Output 5 4 2 Analog Output 6 4 3 Software Commands 7 5 PROGRAMMING 8 5 1 Serial Output Program Example 9 5 2...

Страница 4: ...serial I O options include continuous or polled ASCII text output or NMEA marine output The sensor is supplied with the following standard configuration RS232 serial output TTL levels Polled mode 9600...

Страница 5: ...of Campbell Scientifics white fibreglass enclosures If the 61302V is to being installed in an enclosure a QDP HYDRO VENT should used Otherwise the included poly tube can be used to vent the sensor to...

Страница 6: ...Ended Channel Single Ended Channel Blue Optional Trigger No Connection or SW12V No Connection or SW12V Green Reference AG Red PWR SW12V or 12V SW12V or 12V Jumper b w Ctrl Port SW12 CTRL Black PWR AG...

Страница 7: ...can be used with TTL RS 232 signal levels P4 A B configures the terminal connections for RS 232 Both jumpers must be in position A for RS 232 serial communication Format Description Continuous ASCII...

Страница 8: ...meters The standard setting maps 0 to 5000 mV with 500 to 1100 hPa For example hPa 0 12 mV 500 Effective range is 600 hPa Analog signal resolution is 12 bit resolution 600 212 Therefore the effective...

Страница 9: ...ile paused COMMAND mode is indicated by a prompt All commands must be terminated with a carriage return CR ASCII 13 Use to list available commands as shown below YOUNG 61300 SERIES BAROMETER V2 03 CMD...

Страница 10: ...ely after the command is received Therefore in order to continue communicating the serial communication program that issued the command must also change to match CMD300 n causes the sensor to pause or...

Страница 11: ...ssible Where Elevation is in meters above sea level P 1013 25 1 1 Elevation 44307 69231 5 253283 5 1 Serial Output Program Example The program example illustrates the polling of a 61302V in its defaul...

Страница 12: ...Open Com1 9600 0 0 1000 Scan 5 Sec 0 0 Switch 61302V Sensor On 1 minute before the top of the hour If TimeIntoInterval 59 60 Min Then SW12 1 Poll 61302V Sensor at the top of the hour If TimeIntoInterv...

Страница 13: ...set to 5VDC mode A position Jumper P4 will need to be set to Voltage mode B position 61302V Wiring Red CR1000 12V power continuously for testing Black CR1000 AG White CR1000 SE1 Blue No Connection Gre...

Страница 14: ...lling 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_Anal...

Страница 15: ...61302V Barometric Pressure Sensor 13...

Страница 16: ...y 1 Connect the 61302V to the PC Please note in order to make the connection to the PC you will require either an interface board i e DB9M TERM or a 9 pin cable with connections for Tx Rx and Ground T...

Страница 17: ...mit 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 e...

Страница 18: ...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 appl...

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