Vaisala HMP60 Manual descargar pdf (Pagina 18)

HMP60 Temperature and Relative Humidity Probe

The temperature and relative humidity signals from the HMP60 are measured

using two single-ended analog measurements (VoltSE() in CRBasic or

Instruction 1 in Edlog).

The probe output scale is 0 to 1000 millivolts for the temperature range of

-40° to +60°C and for the relative humidity range of 0 to 100%. Tables 7-2

and 7-3 provide calibration information for temperature and relative humidity.

TABLE 7-2. Calibration for Temperature

Units Multiplier

(degrees mV

-1

)

Offset

(degrees)

Celsius 0.1 -40

Fahrenheit 0.18 -40

TABLE 7-3. Calibration for Relative Humidity

Units Multiplier

(% mV

-1

)

Offset

(%)

Percent 0.1 0

Fraction 0.001 0

TABLE 7-4. Wiring for CR1000 and CR10X Examples

Description Color CR1000 CR10(X)

Temperature Black SE 1 SE 3 (2H)

Relative Humidity White SE 2 SE 4 (2L)

Signal & Power Reference Blue G G

Power Brown 12 V 12 V

Shield Clear

7.4.1 Example for CR1000

'CR1000

'Created by SCWIN (2.1)

Public AirTC

Public RH

DataTable(Table1,True,-1)

DataInterval(0,60,Min,0)

Average(1,AirTC,FP2,0)

Sample(1,RH,FP2)

EndTable

BeginProg

Scan(5,Sec,1,0)

'HMP60 Temperature & Relative Humidity Sensor measurements AirTC and RH:

VoltSE(AirTC,1,mV2500,1,0,0,_60Hz,0.1,-40.0)

VoltSE(RH,1,mV2500,2,0,0,_60Hz,0.1,0)

If (RH>100) And (RH<108) Then RH=100

CallTable(Table1)

NextScan

EndProg

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