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TDR100

9. Programming Examples

9.1 CR10X/CR23X Program Examples

Example 1, Measure and Record; Analog Measurements and Volumetric

Water Content

A CS605 or CS610 probe is connected directly to the TDR100. A cable length

of 6.25 meters was determined using PCTDR. The L

/L value is converted to

volumetric water content using the Ledieu , etal linear calibration function.

The program is executed once a minute. The array id, time, analog

measurements, and volumetric water content are output to Final Storage every

five minutes.

;{CR10X}

;

;Program Name = T100EX#1

;

*Table 1 Program

01: 60 Execution Interval (seconds)

;Measure the datalogger power supply voltage:

1: Batt Voltage (P10)

1: 1 Loc [ Bat_Volt ]

;Measure the internal temperature of the datalogger:

2: Internal Temperature (P17)

1: 2 Loc [ DL_Temp ]

;Set port 5 high to switch ON "Switched 12V" power from the datalogger to power the TDR100.

3: Do (P86)

1: 45 Set Port 5 High

;Measure the CS610 probe connected directly to the TDR100 and convert to water content:

4: TDR100 Measurement (P119)

1: 0 SDM Address

2: 0 La/L

3: 0000 MMMP Mux & Probe Selection

4: 4 Waveform Averaging

5: 1 Vp

6: 250 Points

7: 5.75 Cable Length (meters)

8: 5 Window Length (meters)

9: .3 Probe Length (meters)

10: 0.085 Probe Offset (meters)

11: 3 Loc [ WC_1 ]

12: .1138 Mult ; Multiplier for Liedu Calibration

13: -0.1758 Offset ; Offset for Liedu Calibration

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 55 56

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Campbell TDR100 Bedienerhandbuch Seite 36