Campbell-scientific CS420 and CS425 PDCR 1830-8388 Pressure Transducer Uživatelský manuál stáhnout pdf (Strana 17)

CS420-L and CS425-L Pressure Transducers

7.2 CR23X and 21X Examples

7.2.1 Instruction 6 (4-Wire Full Bridge Measurement)

7.2.1.1 Wiring

Datalogger CS420-L/CS425-L

Excitation E1 Red (Supply +)

Input H1 Yellow (Output +)

Input L1 Blue (Output -)

G White (Supply -)

G Clear (Shield)

The orange and black wires are not used and the ends of these wires should be

taped to prevent shorting.

7.2.1.2 Edlog Program

; Measure one 4-wire DRUCK Sensor.

* Table 1 Program

01: 5 Execution Interval (seconds)

1: Full Bridge (P6)

1: 1 Reps

2: 22* 50 mV, 60 Hz Rejection, Slow Range

3: 1 DIFF Channel

4: 1 Excite all reps w/Exchan 1

5: 5000 mV Excitation

6: 1 Loc [DEPTH_FT]

7: 2.3529 Mult

8: -0.49 Offset

*for 21X use Range Code 3

; Every 60 minutes output the array ID, time,

; and average water depth in feet.

2: If time is (P92)

1: 0000 Minutes into a

2: 60 Minute Interval

3: 10 Set output flag high

3: Real Time (P77)

1: 110 Day, Hour/Minute (midnight = 0000)

4: Average (P71)

1: 1 Reps

2: 1 Loc [DEPTH_FT]

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 27 28

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Campbell-scientific CS420 and CS425 PDCR 1830-8388 Pressure Transducer Uživatelský manuál Strana 17