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Campbell Scientific OBS3 Turbidity Sensor User Manual

Page 8

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Interfacing the OBS-3 Turbidity Monitor with Campbell Scientific Dataloggers

4

;Read millivolt signal
3: Volts (DIFF) (P2)
1: 1

Reps

2: 25

2500 mV 60 Hz Rejection Range ;CR23X is 25 ± 5000 mV 60 Hz Rejection Range

3: 1

DIFF

Channel

4: 1

Loc [ Turbidity ]

5: 0.8

Mult

;(2000 FTU)/(2500 mV) CR23X would be 2000/5000 = 0.4

6: 0.0

Offset


;Remove power from probe
4: Do (P86)
1: 51

Set

Port

1

Low


;Measure system voltage
5: Batt Voltage (P10)
1: 2

Loc

[

BATT_VOLT

]


;Output every hour the date and the average turbidity, maximum
;turbidity with the time of occurrence, and battery voltage.
6: If time is (P92)
1: 0

Minutes

into

a

2: 60

Interval

3: 10

Set

Output

Flag

High


7: Real Time (P77)
1: 1110

Year,

Day,

Hour/Minute


8: Average (P71)
1: 1

Reps

2: 1

Loc [ Turbidity ]


9: Maximize (P73)
1: 1

Reps

2: 10

Value

with

Hr_Min

3: 1

Loc [Turbidity ]


10: Sample (P70)
1: 1

Reps

2: 2

Loc

[

BATT_VOLT

]