Campbell CS100 Manuel d'instructions télécharger pdf (Page 14)

CS100 Barometric Pressure Sensor

In Program Example 2, the CR10X datalogger (Edlog datalogger) turns on

the CS100 one minute before the top of the hour using a control port. On the

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

5.1 Conversion Factors

In the example programs, the pressure is reported in millibars (mb). To

report pressure in different units, multiply the measured pressure by the

appropriate conversion factor using the P37 (Z=X*F) instruction for CR500,

CR510, CR10(X), CR23X, 21X, and CR7, or by adding an expression for

CR200, C800, CR850, CR1000, CR3000, CR5000, and CR9000(X)

dataloggers. See Table 2 below for conversion factors.

Table 2. Conversion Factors for

Alternative Pressure Units

To Find Multiply by

hPa 1.0

kPa 0.1

mm of Hg 0.75006

in of Hg 0.02953

Psi 0.0145

Atm 0.00099

Torr 0.75006

5.2 Multipliers and Offsets for Different Measurement Range

Options

For CS100 barometric pressure transducers with measurement range options

other than the standard 600 to 1100 mb option, please refer to the table

below for proper multipliers and offsets.

Table 3. Multipliers and Offsets

Range Options Multiplier Offset

600 to 1100 mb

(Standard range)

0.2 600

500 to 1100 mb 0.24 500

800 to 1100 mb 0.12 800

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 20

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Campbell CS100 Manuel d'instructions Page 14