Campbell Scientific CS420 and CS425 PDCR 1830-8388 Pressure Transducer - Manual (Page 24)

CS420-L and CS425-L Pressure Transducers
6: End (P95)
; Deactivate Multiplexer
7: Do (P86)
1: 51
Set Port 1 Low
; Adjust sensor readings for multiplier and
; offset:
8: Scaling Array (A*Loc + B) (P53)
1: 1
Start Loc [DEPTH_FT]
2: 2.2975 A1 ;Multiplier #1
3: .36781 B1 ;Offset #1
4: 1.0560 A2 ;Multiplier #2
5: .4011 B2 ;Offset #2
6: 3.0001 A3 ;Multiplier #3
7: .2103 B3 ;Offset #3
8: 1.9821 A4 ;Multiplier #4
9: 1.0029 B4 ;Offset #4
; Record average depth every hour.
9: If Time is (P92)
1: 0000
Minutes (seconds --) into a
2: 60 Minute Interval (same units as above)
3: 10 Set output flag high (Flag 0)
10: Real Time (P77)
1: 110
Day, Hour/Minute
11: Average (P71)
1: 4
Reps
2: 1 Loc [DEPTH_FT]
9. Maintenance
Periodic evaluation of the desiccant is vital for keeping the vent tube dry. To
assess the effectiveness of the desiccant, use one of the following:
• An indicating desiccant that changes color when it’s losing its drying
power
• An enclosure humidity indicator such as our #6571 humidity indicator
card
9.1 Every Visit, At Least Monthly
• Collect data
• Visually inspect wiring and physical conditions
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