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Campbell Scientific 229 Water Matric Potential Sensor and CE4/CE8 User Manual

Page 19

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229 Heat Dissipation Matric Water Potential Sensor

8: Excitation with Delay (P22)

;Wait 29 more seconds for next reading

1: 1

Ex

Channel

2: 0

Delay W/Ex (0.01 sec units)

3: 2900

Delay After Ex (0.01 sec units)

4: 0000

mV

Excitation


9: Thermocouple Temp (DIFF) (P14)

;Take 30 second temperature reading

1: 1

Reps

2: 1

2.5

mV

Slow

Range

3: 4

DIFF

Channel

4: 1

Type

T

(Copper-Constantan)

5: 1

Ref Temp (Deg. C) Loc [ ref_temp ]

6: 4

Loc [ T30sec_1 ]

7: 1.0

Mult

8: 0.0

Offset


10: Do (P86)

;turn off CE8

1: 52

Set

Port

2

Low


11: Z=X-Y (P35)

;Calculate delta T

1: 4

X Loc [ T30sec_1 ]

2: 3

Y Loc [ T1sec_1 ]

3: 5

Z Loc [ deltaT_1 ]


12: Do (P86)

;Save readings to final storage

1: 10

Set Output Flag High (Flag 0)


13: Set Active Storage Area (P80)

1: 1

Final

Storage

Area

1

2: 229

Array

ID


14: Real Time (P77)

1: 1220

Year,Day,Hour/Minute

(midnight

=

2400)


15: Sample (P70)

1: 1

Reps

2: 2

Loc [ Tinit_1 ]


16: Sample (P70)

1: 1

Reps

2: 5

Loc

[

deltaT_1

]


17: Do (P86)

;Disable flag 1

1: 21

Set

Flag

1

Low


18: End (P95)

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