Vaisala HMM100 User Manual
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Vaisala HMM100 User Manual

Humicap humidity module
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M211024EN-D
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Humidity Module
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Summary of Contents for Vaisala HMM100

  • Page 1 M211024EN-D User Guide â Vaisala HUMICAP Humidity Module HMM100...
  • Page 2 This product contains software developed by The contents of this manual are subject to change Vaisala or third parties. Use of the software is without prior notice. governed by license terms and conditions Local rules and regulations may vary and they...

  • Page 3: Table Of Contents

    About This Document..................5 Version Information.....................5 Related Manuals....................5 Documentation Conventions................5 Trademarks......................6 Patent Notice....................... 6 Product Overview..................... 9 Introduction to HMM100 Series Humidity Modules.........9 Basic Features and Options................10 Probe Types......................10 Filter Types......................11 Installation Accessories..................12 2.5.1 Probe Mounting Flange................12 2.5.2 Probe Mounting Clamp................
  • Page 4 HMM100 User Guide M211024EN-D Calibration Commands..................31 4.5.1 Calibrate Temperature Measurement............31 4.5.2 Calibrate Humidity Measurement............. 32 4.5.3 View User Adjustment Parameters............33 4.5.4 Set User Adjustment Parameters............. 33 4.5.5 Zero the Trimmers..................34 4.5.6 Calibrate Analog Output................34 Configuring Serial Line Operation..............35 4.6.1...
  • Page 5 HMM100 Probe with Mounting Clamp............13 Figure 6 Mounting Bracket with Lid................14 Figure 7 Optional Module Housing.................14 Figure 8 HMM100 Dimensions. Left to Right: Standard and Extended Probe Body..................17 Figure 9 Component Board (3-wire Version).............. 18 Figure 10 Wiring for 2-wire Output.................. 21 Figure 11 Wiring for 3-wire Output.................
  • Page 6 Applicable Patents....................6 Table 4 Quantities Measured by HMM100..............9 Table 5 Filter Types and Properties................. 11 Table 6 HMM100 Default Serial Interface Settings............ 24 Table 7 Basic Serial Commands..................25 Table 8 Advanced Serial Commands................26 Table 9 Error Levels for Analog Output Modes............57 Table 10 Measurement Performance................59...

  • Page 7: About This Document

    â Humidity Module HMM100 Quick Reference Guide M211002EN Vaisala HUMICAP M211078EN Module Housing (IP65) for Humidity Module HMM100 Quick Reference Guide M211079EN Mounting Bracket for Humidity Module HMM100 Quick Reference Guide M211080EN Mounting Flange for Humidity Probes Quick Reference Guide 1.3 Documentation Conventions...

  • Page 8: Trademarks

    Lists tools needed to perform the task. Indicates that you need to take some notes during the task. 1.4 Trademarks Vaisalaâ and HUMICAPâ are registered trademarks of Vaisala Oyj. Windowsâ is either a registered trademark or trademark of Microsoft Corporation in the United States and other countries.
  • Page 9 Chapter 1 – About This Document Issuing Office Publication Number Japan Patent Office Japanese patent 3585973 Intellectual Property Office UK patent 0665303 United States Patent and Trademark Office U.S. patent 5607564...
  • Page 10 HMM100 User Guide M211024EN-D...

  • Page 11: Product Overview

    Pt1000 sensor. No external temperature compensation should be applied to the output. HMM100 modules do not incorporate probe heating or chemical purge functionality. If the measurement environment is prone to condensation, or likely to cause chemical contamination of the sensor, other Vaisala instruments may be more suitable to the application.

  • Page 12: Basic Features And Options

    ‣ Using Service Port (page 23) 2.3 Probe Types The HMM100 can be ordered with a plastic or stainless steel probe. The plastic probe is available in two sizes, a standard one and an extended 400-mm-long option. The plastic probe is suitable for most applications.

  • Page 13: Filter Types

    Figure 3 Extended 400-mm Plastic Probe 2.4 Filter Types All filters available for HMM100 are 12 mm in diameter, and can be used in both the plastic and stainless steel probe. Note the operational temperature range of each filter. For order codes, see Accessories (page 62).

  • Page 14: Installation Accessories

    HMM100 User Guide M211024EN-D Filter Type Diameter Pore Size Temperature Range Porous PTFE 12 mm 8 µm -70 ... +180 °C (-94 ... +356 °F) (general purpose) Stainless steel 12 mm 38 µm -70 ... +180 °C (-94 ... +356 °F)

  • Page 15: Probe Mounting Clamp

    Use 2 mounting clamps for stability when installing the longer, 400-mm plastic probe. More Information ‣ Mounting HMM100 Probe to Mounting Clamp (page 19) 2.5.3 Mounting Bracket with Lid The optional mounting bracket includes a metal backplate and a plastic lid for the component board.

  • Page 16: Module Housing (Ip65)

    HMM100 User Guide M211024EN-D Figure 6 Mounting Bracket with Lid 2.5.4 Module Housing (IP65) The optional module housing is an IP65 rated housing. The module is installed inside the housing in a mounting bracket (provided with the housing). The housing has two cable glands.

  • Page 17: Esd Protection

    2.6.1 ESD Protection Electrostatic Discharge (ESD) can cause immediate or latent damage to electronic circuits. Vaisala products are adequately protected against ESD for their intended use. However, it is possible to damage the product by delivering an electrostatic discharge when touching, removing or inserting any objects inside the equipment housing.
  • Page 18 HMM100 User Guide M211024EN-D...

  • Page 19: Installation

    Chapter 3 – Installation 3. Installation 3.1 Dimensions 46.5 [1.83] 36.5 [1.44] Ø3.5 [0.14] M10x1 Ø12 [0.47] Ø12 [0.47] [in] Figure 8 HMM100 Dimensions. Left to Right: Standard and Extended Probe Body...

  • Page 20: Installing The Module

    HMM100 User Guide M211024EN-D 3.2 Installing the Module The measurement probe with cable is attached to the component board at Vaisala. Do not disconnect and reconnect the cable. 1. Attach the module securely using the mounting holes on the corners of the component board.

  • Page 21: Mounting Hmm100 Probe To Mounting Clamp

    Chapter 3 – Installation 2. Install the probe in the location. Use the probe mounting clamp (Vaisala order code 226067) if needed. See Mounting HMM100 Probe to Mounting Clamp (page 19). • Insert enough cable to the same space with the probe in order to prevent heat conduction, and to make it easy to move the probe when performing a calibration.
  • Page 22 HMM100 User Guide M211024EN-D 2. Slide the lower clamp part over to the bottom end of the upper part. 3. Place the clamp to the intended location and secure the upper clamp part with a screw. 4. Place the probe in the clamp.

  • Page 23: Wiring

    Chapter 3 – Installation 5. Tighten the lower clamp part with a screw. 3.4 Wiring 3.4.1 2-wire Output Provide a 24 VDC supply voltage. See also Figure 15 (page 60). 24 VDC Figure 10 Wiring for 2-wire Output 3.4.2 3-wire Output Provide the required supply voltage according to the output type: •...

  • Page 24: Verifying Installation

    HMM100 User Guide M211024EN-D 10 ... 35 VDC 24 VAC ±20 % V/mA Figure 11 Wiring for 3-wire Output When using the 3-wire output module, you may also connect a fourth wire to the Out terminal. It is internally connected to the Vin terminal. This connection is recommended when using the 0 ...

  • Page 25: Operation

    The cable does not provide operation power to the module; you must power it normally through the screw terminals. If you have not used the HMM100 USB cable before, install first the driver that came with the cable. See Installing Driver for USB Cable (page 23).

  • Page 26: Terminal Application Settings

    Windows (available for download at www.vaisala.com) and a USB serial interface cable: 1. Connect the USB cable between your PC and the service port of the HMM100. 2. Start the PuTTY application. 3. Select the Serial settings category, and check that the correct COM port is selected in the Serial line to connect to field.

  • Page 27: List Of Serial Commands

    Chapter 4 – Operation 6. You may need to adjust the Local echo setting in the Terminal category to see what you are typing on the serial line. To access the configuration screen while a session is running, click the right mouse button over the session window, and select Change Settings...

  • Page 28: Table 8 Advanced Serial Commands

    HMM100 User Guide M211024EN-D Command Description CALCS Show measured quantities CLOSE Close the temporary connection (returns to POLL mode) ECHO [ON/OFF] Set terminal echo Set environmental parameters ERRS Display active errors HELP List available commands INTV [0 ... 255 S/MIN/H] Set the continuous output interval (for RUN mode) OPEN [0 ...

  • Page 29: Device Information And Status

    If the module is in poll mode, but a connection has not been opened using the OPEN command, issue the ?? command. For a description of the serial interface modes, see Serial Interface Mode (page 37). ??<cr> 4.3.2 Show Quantities The CALCS command shows the abbreviations of the quantities measured by HMM100: CALCS<cr> Example:...

  • Page 30: Show Calibration Info

    HMM100 User Guide M211024EN-D >calcs RH Td T > 4.3.3 Show Calibration Info Use the CALINFO command to show or set the calibration info field. CALINFO ["location"] Examples: >calinfo Calibration location: "VAISALA HELSINKI" > >calinfo "Calibration lab 2" Calibration location: "Calibration lab 2"...

  • Page 31: Show Firmware Version

    : 0.000000 4.3.5 Show Firmware Version VERS<cr> Example: >vers HMM100 / HM100 / VAISALA / 1.1.10.3031 > 4.4 Serial Line Output Commands 4.4.1 Start Measurement Output Use the R command to start the continuous outputting of measurement values as an ASCII text string to the serial line. The output always includes the readings of the currently selected analog output quantity (RH or Td) and temperature.

  • Page 32: Stop Measurement Output

    HMM100 User Guide M211024EN-D 4.4.2 Stop Measurement Output Use the S command to stop the continuous measurement output: S<cr> 4.4.3 Set Output Interval Use the INTV command to show or set the output interval of the serial line measurement messages (applies when the R command or RUN mode is used). The shortest output interval is one second.

  • Page 33: Calibration Commands

    Chapter 4 – Operation >send RH= 25.12 % T= 24.91 'C > 4.5 Calibration Commands Commands that have to do with calibration on the serial line are described below. For the calibration procedures, see Calibration (page 49). 4.5.1 Calibrate Temperature Measurement Use the CT command to perform a one-point or two-point temperature (T) calibration. CT<cr>...

  • Page 34: Calibrate Humidity Measurement

    HMM100 User Guide M211024EN-D >ct 22.0007 Ref1 ? 22 Press any key when ready ... 44.9847 Ref2 ? 45 >save Saving settings...done > 4.5.2 Calibrate Humidity Measurement Use the CRH command to perform a one-point or two-point correction to the humidity measurement of the module.

  • Page 35: View User Adjustment Parameters

    Chapter 4 – Operation >crh 11.29915720 Ref1 ? 11.3 Press any key when ready 75.04306440 Ref2 ? 75 >save Saving settings...done > 4.5.3 View User Adjustment Parameters Use the L command to view the current user adjustment parameters and trimmer adjustment. This command is useful for checking the currently applied correction. L<cr>...

  • Page 36: Zero The Trimmers

    HMM100 User Guide M211024EN-D After entering the command, you will be prompted to enter new values one at a time. Press ENTER without giving a value to move to the next parameter. Remember to save the changes! Example (shows default values): >li...

  • Page 37: Configuring Serial Line Operation

    Chapter 4 – Operation ACAL<cr> After you give this command, the analog output of the module is set to the low limit of the selected output (voltage or current). Measure the output and enter the measured value. After entering the low limit, you must measure and enter the high limit also. Example (analog output in 4 ...

  • Page 38: Set Terminal Echo

    HMM100 User Guide M211024EN-D Examples: >seri Baud P D S : 19200 N 8 1 > >seri 9600 e 7 1 Baud rate : 9600 Parity Data bits Stop bits >save Saving settings...done > 4.6.2 Set Terminal Echo To show or set the terminal echo status, use the ECHO command.

  • Page 39: Set Serial Interface Mode

    Chapter 4 – Operation ADDR [nn]<cr> address (0 ... 99) Remember to save the changes! Example: >addr 1 Address >save Saving settings...done > 4.6.4 Set Serial Interface Mode Use the SMODE command to show or set the serial interface mode. Note that a separate SAVE command is not needed to store the new serial interface mode setting.

  • Page 40: Configuring Measurement Parameters

    4.7 Configuring Measurement Parameters 4.7.1 Set Environmental Compensation Values Use the ENV command to show or set the environmental compensation values. In HMM100, the humidity measurement can be compensated for ambient pressure. The value set using ENV command is a permanent value which will survive a restart. Use the command XPRES instead if the value is changed frequently;...

  • Page 41: Set Temporary Pressure Compensation Value

    Chapter 4 – Operation You can use the Vaisala Humidity Calculator to simulate the effect of pressure change to dewpoint. The Humidity Calculator can be found at: www.vaisala.com/humiditycalculator 4.7.2 Set Temporary Pressure Compensation Value Use the XPRES command to show or set the temporary ambient pressure value for pressure compensation.

  • Page 42: Select Analog Output Quantity And Scaling

    HMM100 User Guide M211024EN-D • 0..1V • 0..5V • 0..10V • 0..20mA • 4..20mA Modes for 2-wire output model: • 4..20mA Remember to save the changes! Example (show current mode): >amode Ch1 : 0..10V >save Saving settings...done > Example (set mode to 0...20 mA): >amode 0..20ma...

  • Page 43: Test Analog Output

    Chapter 4 – Operation Examples: >asel Quantity : RH Level Lo Level Hi : 100 >save Saving settings...done > >asel td Quantity : TD Level Lo : -40 Level Hi : 60 >save Saving settings...done > >asel td -10 60 Quantity : TD Level Lo...

  • Page 44: Other Commands

    HMM100 User Guide M211024EN-D >atest 2.5 2.500000, 587f > >atest > 4.9 Other Commands 4.9.1 Display Command List Use the HELP command to display a list of the currently available commands. If the PASS command has not been used, only the basic commands are available.

  • Page 45: Connecting To The Module In Poll Mode

    Use the OPEN command to connect to a module that is in POLL mode. OPEN [aa]<cr> address (0 ... 99) Example: open 1 HMM100: 1 line opened for operator commands > 4.9.5 Closing the Connection in POLL Mode The CLOSE command closes the connection to the module. CLOSE<cr>...

  • Page 46: Restore Saved Settings

    RESET<cr> Example (module set to serial mode STOP, will output module software version at reset): >reset HMM100 / VAISALA / 1.1.10.3031 > 4.9.9 Restore Factory Settings Use the FRESTORE command to restore the factory settings to the module. All user settings, including the analog output mode and user-performed calibration corrections, will be lost.
  • Page 47 Chapter 4 – Operation FRESTORE<cr> Example: >frestore Restoring factory defaults...done >...
  • Page 48 HMM100 User Guide M211024EN-D...

  • Page 49: Maintenance

    SW version 1.3.0 or later, the sensor can be replaced with any other HUMICAPâ sensor type. With HMM100 modules running an older SW version, you can replace the sensor only with the same type of sensor as the original.
  • Page 50 HMM100 User Guide M211024EN-D Sensor Type Identifier Example HUMICAPâ 180R HUMICAPâ 180V Replacing the sensor is repair maintenance, and it is not necessary in normal operation. If the accuracy of the module does not seem to be within specification, it is more likely that the module is in need of calibration and adjustment, and not sensor replacement.

  • Page 51: Calibration

    • Using serial commands. This method requires a connection to the service port of the HMM100 module. For this, you need the B cable (Vaisala order code: 226068) and a PC with a terminal application. You also need a humidity reference and a Phillips head screwdriver for zeroing the trimmers.

  • Page 52: Calibration And Adjustment Using Trimmers

    + 0 ... 5 % Figure 14 Trimmers for Offset and Gain The procedure below provides an example adjustment of offset and gain using the Vaisala Humidity Calibrator HMK15, which is a saturated salt calibrator. It is assumed that the module is powered and you can measure the analog output reading.

  • Page 53: Calibration And Adjustment Using Serial Line

    Chapter 5 – Maintenance For best results, use the ACAL command to calibrate the currently active analog output mode before using the trimmers. For instructions on how to do this, see Calibrate Analog Output (page 34). 1. Note the current position of the trimmers. 2.
  • Page 54 HMM100 User Guide M211024EN-D Temperature measurement is not controlled by the trimmers, so do not adjust them during temperature calibration. 1. Connect the USB cable to the service port on the module, and to a USB port on your 2. Start a terminal application and set the correct connection settings. The default serial settings are 19200 8 N 1.
  • Page 55 Chapter 5 – Maintenance 9. You now have three choices: a. To apply the correction, type the temperature of the reference in degrees Celsius and press ENTER. b. To exit the CT command without adjusting the measurement, press the ESC key and exit this procedure.

  • Page 56: Humidity Calibration (Crh)

    The following procedure provides a calibration procedure using the serial line commands and the Vaisala Humidity Calibrator HMK15. You can use the procedure to do a one-point calibration (offset) or a two-point calibration (offset and gain).
  • Page 57 Chapter 5 – Maintenance 6. Use the PASS command to enable the advanced commands: >pass 1300 7. Turn both trimmers to zero using the Phillips head screwdriver, and use the ZERO command to set their correction to exactly zero: >zero 8.
  • Page 58 HMM100 User Guide M211024EN-D 13. Type 75 and press ENTER to apply the correction (assumes you are using the HMK15 and the NaCl salt). RH: 75.00134550 Ref2 ? 75 > The CRH command is now finished and both adjustments have been applied.

  • Page 59: Troubleshooting

    6.2 Problems and Their Possible Solutions You can check the error message via the serial interface by using the ERRS command. In case of constant error, please contact Vaisala technical support. Problem or Message Likely Causes and Solutions Measurement not working, any of the following errors •...
  • Page 60 2. Return the module to factory settings using the FRESTORE command. Check again. • Current settings checksum error • Default settings checksum error 3. If the error is still active, contact Vaisala technical • Log corrupted support. • Resistance measurement...

  • Page 61: Technical Data

    0 ... 100 %RH Factory calibration uncertainty (+20 °C / +68 °F) ±1.5 %RH Humidity sensor types Vaisala HUMICAPâ R2 Vaisala HUMICAPâ 180V Accuracy at -20 ... +40 °C (-4 ... +104 °F) (Incl. Non-Linearity, Hysteresis and Repeatability): 0 ... 90 %RH ±2 %RH...

  • Page 62: Figure 15 Loop Supply Voltage Versus Loop Resistance

    3-wire model 0 ... 20 mA, 0 ... 1/5/10 V Max. wire size 0.5 ... 1.5 mm (AWG) Service port M8 connector for USB cable Table 13 HMM100 3-wire Model Current Consumption Output DC Supply Supply Load Typ. Current Max. Current...

  • Page 63: Table 14 Mechanical Specifications

    Chapter 7 – Technical Data Table 14 Mechanical Specifications Property Description/Value Service cable connector M8 series 4-pin (male) Probe diameter 12 mm (0.5 in) Probe Cable Lengths Stainless steel probe 1.55/2.9 m (5.1/9.5 ft) Plastic probe (standard body) 0.6/1.55/2.9 m (2/5.1/9.5 ft) Plastic probe (extended 400‑mm (16 in) body) 1.55 m (5.1 ft) Probe Material...

  • Page 64: Dimensions

    M10x1 Ø3.5 Ø12 [0.14] [0.47] 41.0 [1.61] [14.25] Ø12 [0.47] [in] Figure 16 HMM100 Dimensions. Top to Bottom: Standard and Extended Probe Body 7.2 Accessories Table 15 Spare Parts and Accessories Item Order Code Humidity sensor HUMICAPR2 Humidity sensor HUMICAP180R Humidity sensor HUMICAP180V...
  • Page 65 Chapter 7 – Technical Data Item Order Code Mounting bracket with lid 225979 Module housing (IP65) 226060 Probe mounting flange 226061 Probe mounting clamp set (10 pcs) 226067 USB cable 226068...
  • Page 66 HMM100 User Guide M211024EN-D...

  • Page 67: Warranty

    Please see the applicable supply contract or Conditions of Sale for details of the warranty for each product. Technical Support Contact Vaisala technical support at helpdesk@vaisala.com. Provide at least the following supporting information: • Product name, model, and serial number •...
  • Page 68 HMM100 User Guide M211024EN-D...
  • Page 70 www.vaisala.com...

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