HMP50 Temperature and Relative Humidity Probe
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
CallTable(Table1)
NextScan
EndProg
5.2 Example for CR10X
;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: 3
Loc [ RH_pct ]
5: .1
Mult
;See Table 4 for alternate multipliers
6: 0
Offset
;Limit the maximum relative humidity to 100%.
;
03: If (X<=>F) (P89)
1: 3
X Loc [ RH_pct ]
2: 3
>=
3: 100
F
4: 30
Then
Do
04: Z=F (P30)
1: 100
F
2: 0
Exponent
of
10
3: 3
Z Loc [ RH_pct ]
05: End (P95)
8
Summary of Contents for HMP50
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