Campbell Scientific DB1 Double Bubbler Liquid Level Sensor - Manual (Page 13)

DB1 Liquid Level Measurement Sensor
2: Z=F (P30)
1: 0
F
2: 0 Exponent of 10
3: 7 Z Loc [:SUM ]
3: Beginning of Loop (P87)
1: 0
Delay
2: 25 Loop Count
4: Full Bridge (P6)
1: 1
Rep
2: 23 25 mV 60 Hz rejection Range
3: 1 IN Chan
4: 1 Excite all reps w/EXchan 1
5: 2500 mV Excitation
6: 6 Loc [:mV/V ]
7: 1 Mult
8: 0 Offset
5: Z=X+Y (P33)
1: 7
X Loc SUM
2: 6 Y Loc mV/V
3: 7 Z Loc [:SUM ]
6: End (P95)
7: Z=X*F (P37)
1: 7
X Loc SUM
2: .04 F
3: 8 Z Loc [:AVG LEVEL]
08: End (P95)
Subroutine 2 activates values #1 - #3, measures h1, h2, and atmospheric pressure, and calculates
the multiplier and offset:
09: Beginning of Subroutine (P85)
1: 2
Subroutine Number
10: Beginning of Loop (P87)
1: 0
Delay
2: 3 Loop Count
11: Do (P86)
1: 41--
Set high Port 1
Note: The dashes (--) after 41 indicate at the next loop port 2 will be set high, then port 3.
12: Excitation with Delay (P22)
1: 3
EX Chan
2: 0 Delay w/EX (units=.01sec)
3: 150 Delay after EX (units=.01sec)
4: 0 mV Excitation
9