Vaisala HMP155 User Manual

Page 5

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VAISALA ________________________________________________________________________ 3

Serial Line Calibration ........................................................... 63

Two-Point Humidity Adjustment .......................................... 63

Two-Point Temperature Adjustment ................................... 64

Relative Humidity Adjustment after Sensor Change........... 65

FCRH ............................................................................. 65

One-Point Humidity and Temperature Adjustment ............. 65

User Adjustment Commands ................................................ 66

L .......................................................................................... 66

LI ......................................................................................... 66

Feeding Adjustment Information.......................................... 66

CTEXT................................................................................. 67

CDATE ................................................................................ 67

Analog Output Adjustment.................................................... 67

ACAL [0/1] ........................................................................... 68

MI70 Check and Adjustment ................................................. 68

CHAPTER 7

TECHNICAL DATA ...................................................................................... 71

Performance ........................................................................... 71

Relative Humidity ................................................................ 71

Temperature........................................................................ 72

Operating Environment ......................................................... 73

Calculated Variables .............................................................. 74

Accuracies of Calculated Variables ..................................... 74

Accuracy of Dew point Temperature °C.............................. 74

Accuracy of Mixing Ratio g/kg (Ambient Pressure 1013
mbar) ................................................................................... 74

Accuracy of Wet Bulb Temperature °C ............................... 75

Accuracy of Dew point Measurement ................................. 75

Inputs and Outputs ................................................................ 75

Mechanics ............................................................................... 76

Options and Accessories ...................................................... 77

Dimensions in mm (inches) .................................................. 78

HMP155 Probe.................................................................... 78

Additional Temperature Probe ............................................ 78

APPENDIX A

CALCULATION FORMULAS ...................................................................... 79

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