Campbell Scientific TDR100 Time Domain Reflectometry Systems - Manual (Page 50)

TDR100
Example 3, Measure and Record; Volumetric Water Content and Analog
Measurements
Eight CS605 or CS610 probes are connected to Channel #1 through #8 of a
Level #1 SDMX50 multiplexer. A cable length value of 10 meters was
determined using PCTDR. The La/L value is converted to volumetric water
content using the Topp calibration. The program is executed every two
minutes. The array id, time, volumetric water content and analog
measurements are output to Final Storage every two minutes.
;{CR10X}
;
;Program Name: T100EX#3
;
*Table 1 Program
01: 120
Execution Interval (seconds)
;Set port 5 high to switch ON "Switched 12V" power from the datalogger to power the TDR100.
1: Do (P86)
1: 45
Set Port 5 High
;Measure the 8 CS610 probes connected to the level 1 SDMX50, return La/L:
;When creating the program with Edlog, the user must manually allocate the 8 input
;locations (i.e.: "LaL_1" through LaL_8"). For Edlog's help on how to do this,
;right mouse click the La/L parameter, select help, then click on
;"manually inserting input locations in Edlog".
2: TDR100 Measurement (P119)
1: 00
SDM Address
2: 0 La/L
3: 1008 MMMP Mux & Probe Selection
4: 4 Waveform Averaging
5: 1 Vp
6: 250 Points
7: 9.5 Cable Length (meters)
8: 5 Window Length (meters)
9: .3 Probe Length (meters)
10: .085 Probe Offset (meters)
11: 1 Loc [ LaL_1 ]
12: 1 Mult
13: 0 Offset
;Turn off the switched 12V to power off the TDR100:
3: Do (P86)
1: 55
Set Port 5 Low
;The following loop applies Topp's calibration to the 8 La/L values.
;One La/L value is converted with each pass through the loop. The indexed
;input locations (those with "--" to the right) are incremented each
;pass through the loop. (Index an input location in Edlog by pressing "F4"
;while the input location is highlighted).
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