Campbell 229 Especificações descarregar pdf (Página 21)

229 Heat Dissipation Matric Water Potential Sensor

;{CR10X}

;Program to read 16 229-L sensors using 1 AM16/32 multiplexer

;and 1 CE4 or CE8 constant current interface

;Manually set Flag 1 high to force readings

*Table 1 Program

01: 30 Execution Interval (seconds)

1: Batt Voltage (P10)

1: 1 Loc [ Batt_Volt ]

2: If time is (P92) ;Set Flag 1 high each hour

1: 0 Minutes (Seconds --) into a

2: 60 Interval (same units as above)

3: 11 Set Flag 1 High

3: If Flag/Port (P91)

1: 11 Do if Flag 1 is High

2: 30 Then Do

4: Do (P86) ;Turn on AM16/32

1: 4 Set Port 2 High

5: Beginning of Loop (P87) ;Loop of 16 for 16 sensors on AM16/32

1: 0 Delay

2: 16 Loop Count

6: Do (P86) ;Advance to next multiplexer channel

1: 73 Pulse Port 3

7: Temp (107) (P11) ;Measure reference temperature

1: 1 Reps ;This is the same instruction

2: 5 SE Channel ;for both the CR10X and 107

3: 1 Excite all reps w/E1

4: 2 Loc [ Tref_C ]

5: 1.0 Mult

6: 0.0 Offset

8: Thermocouple Temp (DIFF) (P14) ;Read initial temperature

1: 1 Reps

2: 21 10 mV, 60 Hz Reject, Slow Range

3: 1 DIFF Channel

4: 1 Type T (Copper-Constantan)

5: 2 Ref Temp (Deg. C) Loc [ Tref_C ]

6: 3 -- Loc [ Tinit_1 ]

7: 1.0 Mult

8: 0.0 Offset

9: Do (P86) ;turn on CE8

1: 41 Set Port 1 High

10: Excitation with Delay (P22) ;Delay of 1 second

1: 1 Ex Channel

2: 0000 Delay W/Ex (0.01 sec units)

3: 100 Delay After Ex (0.01 sec units)

4: 0 mV Excitation

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 33 34

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Campbell 229 Especificações Página 21

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