Document Outline

• Vaisala HUMICAP® Humidity and Temperature Probe HMP155
  • Table of Contents
  • GENERAL INFORMATION
    • About This Manual
      • Contents of This Manual
      • Version Information
      • Related Manuals
      • Documentation Conventions
    • Safety
    • Regulatory Compliances
    • Recycling
    • Patent Notice
    • Trademarks
    • License Agreement
    • Warranty
  • PRODUCT OVERVIEW
    • Introduction to HMP155
      • Basic Features and Options
      • Structure of the HMP155
      • Additional Temperature Probe Option
      • Warmed Probe Option
      • Connection Cover Option
  • INSTALLATION
    • Installation in Radiation Shields
      • Installation in DTR13
      • Installation in DTR503
      • Installation in Stevenson Screen
    • 8-Pin Connector
      • Temporary RS-485 Connection Option
  • OPERATION
    • Getting Started
    • RS-485 Interface
    • Serial Line Communication
      • Installing the Driver for the USB Cable
      • Terminal Application Settings
      • List of Serial Commands
      • Measurement Commands
        • R
        • S
        • SEND [ADDR]
        • SDELAY
        • SERI [BAUD][PARITY][DATA][STOP]
        • #
        • SMODE
        • INTV
      • Formatting Commands
        • FORM
        • UNIT [M/N]
        • TIME
      • Pressure Compensation Commands
        • PRES and XPRES
      • System Commands
        • FILT [0.1…1]
        • ?
        • HELP
        • ERRS
        • VERS
        • RESET
      • Analog Output Configuration Commands
        • AMODE
        • ASEL
        • ATEST
        • AERR
        • ADDR
        • OPEN
        • CLOSE
    • Sensor Functions
      • Chemical Purge (Optional)
        • Automatic Chemical Purge (Interval Purge)
        • Chemical Purge in Power Up
        • Manual Chemical Purge
      • Starting and Configuring Chemical Purge
        • PUR
      • Sensor Heating
        • Setting Humidity Sensor Heating
        • XHEAT
  • MAINTENANCE
    • Periodic Maintenance
      • Cleaning
      • Changing the Probe Filter
      • Changing the Sensor
    • Error States
    • Technical Support
    • Product Returns
  • CALIBRATION AND ADJUSTMENT
    • Push-Button Calibration
      • Two-Point Humidity and Temperature Adjustment
      • One-Point Humidity and Temperature Adjustment
      • Passive Output Version Push-Button Calibration
    • Serial Line Calibration
      • Two-Point Humidity Adjustment
      • Two-Point Temperature Adjustment
      • Relative Humidity Adjustment after Sensor Change
        • FCRH
      • One-Point Humidity and Temperature Adjustment
    • User Adjustment Commands
      • L
      • LI
    • Feeding Adjustment Information
      • CTEXT
      • CDATE
    • Analog Output Adjustment
      • ACAL [0/1]
    • MI70 Check and Adjustment
  • TECHNICAL DATA
    • Performance
      • Relative Humidity
      • Temperature
    • Operating Environment
    • Calculated Variables
    • Accuracies of Calculated Variables
      • Accuracy of Dew point Temperature °C
      • Accuracy of Mixing Ratio g/kg (Ambient Pressure 1013 mbar)
      • Accuracy of Wet Bulb Temperature °C
      • Accuracy of Dew point Measurement
    • Inputs and Outputs
    • Mechanics
    • Options and Accessories
    • Dimensions in mm (inches)
      • HMP155 Probe
      • Additional Temperature Probe
  • CALCULATION FORMULAS