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Campbell Scientific CR3000 Micrologger User Manual

Page 491

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Appendix A. CRBasic Programming Instructions

491

 

GPS 
Used with a GPS device to keep the CR3000 clock correct or provide other 
information from the GPS such as location and speed.  Proper operation of this 
instruction may require a factory upgrade of on‐board memory. 

Syntax 

GPS(GPS_Array, ComPort, TimeOffsetSec, MaxErrorMsec,

NMEA_Sentences)

Note To change from the GPS default baud rate of 38400, specify the new baud
rate in the SerialOpen() instruction.

HydraProbe 
Reads the Stevens Vitel SDI‐12 Hydra Probe sensor. 

Syntax 

HydraProbe(Dest, SourceVolts, ProbeType, SoilType)

LI7200 
Communicates with the LI7200 open path CO

2

 and H

2

O sensor. 

Syntax 

LI7200(Dest, Reps, SDMAddress, Command)

LI7700 
Communicates with the LI7700 open path CO

2

 and H

2

O sensor. 

Syntax 

LI7200(Dest, Reps, SDMAddress, Command)

TGA 
Measures a TGA100A trace‐gas analyzer system. 

Syntax 

TGA(Dest, SDMAddress, DataList, ScanMode)

Therm107 
Measures a Campbell Scientific 107 thermistor. 

Syntax 

Therm107(Dest, Reps, SEChan, Vx/ExChan, SettlingTime, Integ,

Mult, Offset)

Therm108 
Measures a Campbell Scientific 108 thermistor. 

Syntax 

Therm108(Dest, Reps, SEChan, Vx/ExChan, SettlingTime, Integ,

Mult, Offset)

Therm109 
Measures a Campbell Scientific 109 thermistor. 

Syntax 

Therm109(Dest, Reps, SEChan, Vx/ExChan, SettlingTime, Integ,

Mult, Offset)