Campbell Scientific SS100 Sensor Simulator - Manual (Page 7)

SS100 Sensor Simulator
4. Tipping Bucket Rain Gage Simulation
Sensor: Tipping Bucket Rain Gage
Signal Output: Momentary switch closure activated by tipping bucket
mechanism.
Rainfall per tip: 0.01 in.
Wiring
SS100 CR1000
P P2
G
CR1000 Tipping Bucket Rain Gage Simulation Example
'CR1000
'Declare Variables and Units
Public rain_fall
Units rain_fall=inch
'Define Data Tables
DataTable (rain_fall,True,-1)
DataInterval
(0,1,Min,0)
Totalize (1,rain_fall,FP2,0)
EndTable
'Main Program
BeginProg
Scan
(1,Sec,1,0)
'Tipping bucket 0.01" per tip.
PulseCount (rain_fall,1,2,2,0,0.01,0)
CallTable (rain_fall)
NextScan
EndProg
5. Water Level Pressure Transducer Simulation
Sensor: Submersible pressure transducer
Input: Precise excitation voltage 2.5 VDC
Output: Full bridge differential voltage, linear output, maximum negative
voltage equivalent to zero pressure, maximum positive output equivalent
to maximum pressure. Must calibrate in field to determine offset and
maximum and minimum pressures.
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