Manual

HMP50 Temperature and Relative Humidity Probe

'CR1000

Public AirTC

Public RH

Public VP

DataTable(Table1,True,-1)

DataInterval(0,60,Min,0)

Average(1,AirTC,FP2,0)

Sample(1,RH,FP2)

Average(1,VP, FP2,0)

EndTable

BeginProg

Scan(5,Sec,1,0)

'HMP50 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

VaporPressure(VP,AirTC,RH)

CallTable(Table1)

NextScan

EndProg

7.2 Sample CR10(X) Program that Computes Vapor Pressure

and Saturation Vapor Pressure

;Measure the HMP50 temperature.

;

01: Volt (SE) (P1)

1: 1 Reps

2: 5 2500 mV Slow Range ;CR510 (2500 mV); CR23X (1000 mV); 21X,

CR7 (5000 mV)

3: 3 SE Channel ;Black wire (SE 3), Blue wire (G)

4: 1 Loc [ T_C ]

5: .1 Mult ;See Table 3 for alternate multipliers

6: -40 Offset ;See Table 3 for alternate offsets

;Measure the HMP50 relative humidity.

;

02: Volt (SE) (P1)

1: 1 Reps

2: 5 2500 mV Slow Range ;CR510 (2500 mV); CR23X (1000 mV); 21X,

CR7 (5000 mV)

3: 4 SE Channel ;White wire (SE 4), Blue wire (G)

4: 2 Loc [ RH_frac ]

5: .001 Mult ;See Table 4 for alternate multipliers

6: 0 Offset