Campbell CS100 Manual download pdf (Page 18)

CS100 Barometric Pressure Sensor

7.3.3 Program Examples

The CS100 wiring instructions for the example programs are shown in TABLE

7-4 below.

TABLE 7-4. Wiring for Example Programs

Wire Color Description CR10(X) CR1000

Blue VOUT – Pressure Signal Out SE6 SE15

Red SUPPLY – 12 Vdc Power In 12V 12V

Black GND – Power Ground G G

Yellow AGND – Signal Ground AG

Green ETX. TRIG. – External Trigger C8 C4

Clear Shield G G

7.3.3.1 CRBasic Example 1: CR1000 Program Using Sequential Mode

This CR1000 program uses the sequential mode, which is the simplest mode

and can be used for most meteorological applications. Although the example is

for the CR1000, other CRBasic dataloggers, such as the CR200(X), CR800,

CR850, CR3000, and CR9000(X) are programmed similarly. In the example,

the CR1000 measures the CS100 once an hour. To do this, the CR1000 uses a

control port to turn on the CS100 one minute before the top of the hour. On the

hour, the datalogger measures the CS100, and then turns the CS100 off.

'CR1000

'Declare Variables and Units

Public BattV

Public PTemp_C

Public BP_mmHg

Units BattV=Volts

Units PTemp_C=Deg C

Units BP_mmHg=mmHg

'Define Data Tables

DataTable(Table1,True,-1)

DataInterval(0,60,Min,10)

Sample(1,BP_mmHg,FP2)

EndTable

DataTable(Table2,True,-1)

DataInterval(0,1440,Min,10)

Minimum(1,BattV,FP2,False,False)

EndTable

'Main Program

BeginProg

'Main Scan

Scan(5,Sec,1,0)

'Default Datalogger Battery Voltage measurement 'BattV'

Battery(BattV)

'Default Wiring Panel Temperature measurement 'PTemp_C'

PanelTemp(PTemp_C,_60Hz)

'CS100 Barometric Pressure Sensor measurement 'BP_mmHg'

If IfTime(59,60,Min) Then PortSet(4,1)

If IfTime(0,60,Min) Then

VoltSE(BP_mmHg,1,mV2500,15,1,0,_60Hz,0.2,600)

BP_mmHg=BP_mmHg*0.75006

PortSet(4,0)

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Campbell CS100 Manual Page 18

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