Document Outline

• HMT330 USER'S GUIDE
  • TABLE OF CONTENTS
  • GENERAL INFORMATION
    • About This Manual
      • Contents of This Manual
      • Version Information
      • Documentation Conventions
    • Safety
      • ESD Protection
    • Recycling
    • Regulatory Compliances
      • EU Declaration of Conformity
      • DNV Type Approval
      • Transmitters with LAN or WLAN Interface
      • Transmitters with WLAN Interface
    • Patent Notice
    • Trademarks
    • Software License
    • Warranty
  • PRODUCT OVERVIEW
    • Introduction to HMT330
      • Basic Features and Options
      • Structure of the Transmitter
      • Probe Options
      • Warmed Probe HMT337
    • Filter Options
      • Catalytic VHP Filter
  • INSTALLATION
    • Mounting the Housing
      • Standard Mounting without Mounting Plate
      • Wall Mounting with Wall Mounting Kit
      • Mounting with DIN Rail Installation Kit
      • Pole Installation with Installation Kit for Pole or Pipeline
      • Mounting Rain Shield with Installation Kit
      • Panel Mounting Frame
    • Wiring
      • Cable Bushings
      • Grounding the Cables
      • Grounding the Transmitter Housing
      • Signal and Power Supply Wiring
      • Connections to a 24 VAC Power Supply
    • Probe Mounting
      • General Instructions for Probes with a Cable
      • HMT333 for Ducts and Tight Spaces
      • HMT334 for High Pressure and Vacuum Applications
      • HMT335 for High Temperatures
      • HMT337 for High Humidity Applications
        • Temperature Probe (Optional)
      • HMT338 for Pressurized Pipelines
        • Tightening the Clasp Nut
    • Optional Modules
      • Power Supply Module
        • Installation
        • Warnings
      • Galvanic Isolation of the Power Supply
      • Third Analog Output
        • Installation and Wiring
      • Relays
        • Installation and Wiring
        • Selecting the Activation State of the Relay
      • RS-422/485 Interface
        • Installation and Wiring
      • LAN Interface
      • WLAN Interface
        • Attaching the WLAN Antenna
      • Data Logger Module
      • 8-Pin Connector
  • OPERATION
    • Getting Started
    • Display/Keypad (Optional)
      • Basic Display
      • Graphic History
      • Menus and Navigation
        • Changing the Language
        • Rounding Setting
        • Display Backlight Setting
        • Display Contrast Setting
          • Using Display/Keypad
          • Using Serial Line
        • Keypad Lock (Keyguard)
        • Menu PIN Lock
        • Factory Settings
      • Configuring Display Alarms
        • Using Display/Keypad
        • Using Serial Line
    • MI70 Link Program for Data Handling
    • Serial Line Communication
      • User Port Connection
        • User Port Operating Modes
      • Service Port Connection
        • Connection Cables
        • Installing the Driver for the USB Cable
        • Using the Service Port
    • LAN Communication
      • IP Configuration
        • Using Display/Keypad
        • Using Serial Line
      • Wireless LAN Configuration
        • Using Display/Keypad
        • Using Serial Line
      • Communication Protocol
      • Web Configuration for LAN and WLAN
      • Terminal Program Settings
        • Opening a Serial/USB connection
        • Opening a Telnet session (LAN/WLAN)
    • List of Serial Commands
    • Getting Measurement Message from Serial Line
      • Starting Continuous Outputting
      • Stopping Continuous Outputting
      • Outputting Reading Once
      • Assign an Alias for the SEND Command
      • Outputting Reading Once From All Transmitters
    • Communicating with a Transmitter in POLL Mode
      • OPEN
      • CLOSE
    • Formatting Serial Line Message
      • FTIME and FDATE
      • FST
    • General Settings
      • Changing Quantities and Units
        • Using Display/Keypad
        • Using Serial Line
          • FORM
          • UNIT
      • Pressure Compensation Setting
        • Using Display/Keypad
        • Using Serial Line
          • PRES and XPRES
      • Limit RH Output Range
      • Date and Time
        • Using Display/Keypad
        • Using Serial Line
      • Data Filtering
        • Using Display/Keypad
        • Using Serial Line
      • Device Information
        • ?
        • LIGHT
        • HELP
        • ERRS
        • MODS
        • VERS
      • Resetting Transmitter Using Serial Line
        • RESET
      • Locking Menu/Keypad Using Serial Line
        • LOCK
    • Serial Output Settings
      • Using Display/Keypad
      • Using Serial Line
        • SERI
        • SMODE
        • ADDR
        • INTV
        • SDELAY
        • ECHO
    • Data Recording
      • Selecting Data Recording Quantities
        • DSEL
      • View Recorded Data
        • DIR
        • PLAY
      • Deleting the Recorded Files
        • UNDELETE
    • Analog Output Settings
      • Changing Output Mode and Range
      • Analog Output Quantities
        • AMODE/ASEL
      • Analog Output Tests
        • ITEST
      • Analog Output Fault Indication Setting
        • AERR
      • Extend Analog Output Range
    • Operation of Relays
      • Quantity for Relay Output
      • Measurement-Based Relay Output Modes
        • Relay Setpoints
        • Hysteresis
      • Relay Indicating Transmitter Error Status
      • Enabling/Disabling Relays
      • Setting Relay Outputs
        • RSEL
      • Testing Operation of Relays
        • RTEST
    • Sensor Functions
      • Chemical Purge (Optional)
        • Automatic Chemical Purge (Interval Purge)
        • Manual Chemical Purge
        • Chemical Purge in Power Up
      • Starting and Configuring Chemical Purge
        • Using Buttons on Motherboard
        • Using Display/Keypad (Optional)
        • Using Serial Line
          • PURGE
          • PUR
          • RGLIMIT
      • Sensor Heating
        • Setting Humidity Sensor Heating
          • XHEAT
  • MODBUS
    • Overview of Modbus Protocol Support
      • Taking Modbus into Use
    • Enabling Serial Modbus
      • Using Display/Keypad (Optional)
      • Using Serial Line
    • Enabling Ethernet Modbus
      • Using Display/Keypad (Optional)
      • Using Serial Line
    • Diagnostic Modbus Counters
      • Viewing Counters Using Display/Keypad
      • Viewing Counters Using Service Port
    • Disabling Modbus
  • MAINTENANCE
    • Periodic Maintenance
      • Cleaning
      • Changing the Probe Filter
    • Changing the Sensor
      • Error States
    • Technical Support
    • Product Returns
  • CALIBRATION AND ADJUSTMENT
    • Opening and Closing the Adjustment Mode
    • Relative Humidity Adjustment
      • Using Push Buttons
      • Using Display/Keypad
      • Using Serial Line
      • Multipoint Adjustment Using Serial Line
        • MPC Command Syntax
        • Example Multipoint Adjustment Procedure
    • Relative Humidity Adjustment after Sensor Change
      • Using Display/Keypad
      • Using Serial Line
        • FCRH
    • Temperature Adjustment
      • Using Display/Keypad
      • Using Serial Line
    • Analog Output Adjustment
      • Using Display/Keypad
      • Using Serial Line
        • ACAL
    • Feeding Adjustment Information
      • Using Display/Keypad
      • Using Serial Line
        • CTEXT
        • CDATE
  • TECHNICAL DATA
    • Specifications
      • Performance
        • Relative Humidity
        • Temperature (+ Operating Pressure Ranges)
        • Optional Temperature Probe
        • Calculated Variables
      • Accuracies of Calculated Variables
        • Accuracy of Dewpoint Temperature °C
        • Accuracy of Mixing Ratio g/kg (Ambient Pressure 1013 mbar)
        • Accuracy of Wet Bulb Temperature °C
        • Accuracy of Absolute Humidity g/m³
      • Dewpoint Temperature (HMT337 Warmed Probe Option)
      • Operating Environment
      • Inputs and Outputs
      • Mechanics
      • Technical Specifications of Optional Modules
        • Power Supply Module
        • Analog Output Module
        • Relay Module
        • RS-485 Module
        • LAN Interface Module
        • WLAN Interface Module
        • Data Logger Module
    • Spare Parts and Accessories
    • Dimensions (mm/inch)
      • HMT331
      • HMT333
      • HMT334
      • HMT335
      • HMT337
      • HMT338
      • Temperature Probe
  • PROBE INSTALLATION KITS AND INSTALLATION EXAMPLES
    • Duct Installation Kits (for HMT333/337/335)
    • Duct Installation Kit for Temperature Probe (for HMT337)
    • Pressure Tight Swagelok Installation Kits (for HMT337)
      • RH Probe Installation
      • Temperature Probe Installation
    • Examples of Vapor Tight Installations with Cable Gland
      • RH-Probe Installations (for HMT333/337)
      • T- Probe Installations (HMT337)
      • Example of Climate Chamber Installation
      • Example of Installation Through Roof
    • Ball Valve Installation Kit for HMT338
    • Meteorological Installation Kit (for HMT337)
  • CALCULATION FORMULAS
  • MODBUS REFERENCE
    • Function Codes
    • Register Map
      • Data Encoding
        • 32-Bit Floating Point Format
        • 16-Bit Integer Format
      • Measurement Data (Read-Only)
      • Status Registers (Read-Only)
      • Configuration Registers
    • Exception Status Outputs
    • Diagnostic Sub-Functions
    • Device Identification Objects
    • Exception Responses