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HMM100 User's Guide

1. cceseeeeeeeeeeeeeeteeeteeees 54 Temperature Calibration CT arrrannrnnnorrvnnrrrvnnnrnnnnrnnrnnren 56 Capacitance Calibration CRH usnrrnannvnnrnrrnnnnrrnnnnnnnrnvnnen 58 4 M211024EN A VAISALA CHAPTER 6 TROUBLESHOOTING nnnnnannvnnnnvnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnvnnnnnnnnnnnnnennennn 61 Analog Output Error Notification serrnnnvrnnnvrnnnnnvnnnnvnnnnvnnnn 61 Solving Typical Problems rrnnvrnnnnvnnnnnvnnnnvnnnnnvnnnnnnnnnnnnnnnvnnnn 62 Technical Support rnnnavnnnnnvnnnnvrnnnnvnnnnnnnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnn 63 CHAPTER 7 TECHNICAL DATA Liden au gametbeamenndnetinereadegnndetkedesrdkengenddnnndndree de srndenen 65 Specifications siese ent aaaea ideena isinai aaia aani 65 POMOrMANCC i aeia a A Eer iani 65 Relative Humidity eeennnnnnnnonnnnrnnnnnnonanonnnnrnnrnnnnenernnennnnn 65 Dewpoint Temperature rannnvnnnnnnnvnnnnnnnnnrnnnvnnnnrnnnnnnnnnr 65 Operating Environment srerronnnnvnnannvnnonvvnnnrrvnnnrrnnsnnnnrnnrenn 66 Inputs and Outputs rsrerarnronrnrvnrnnrrnannvnnenvenrrrrennnrensnnnnrnnne 66 Mechas noniis i A N A aiii 67 Options and Accessories rrnssvrnnvnnnnnnvnnnnvnnnnvnnnnnnnnnnnnnnnnnnnnne 67 USER S GUIDE List of Figures Figure 1 HMM100 Humidity Module with Probe sessen 14 Figure 2 Probe Types au ative nadia veel caved 15 Figure 3 Filter Typ Sinnik eid atia ane ania nieve 16 Figure 4 Optional Probe Mounting Flange 17 Fi
2. PASS passcode Access advanced commands requires passcode R Start the continuous outputting RESET Resets the module RESTORE Restores the latest saved settings overwrites unsaved settings S Stop the continuous outputting SAVE Save changed settings to memory SEND 0 99 Output the reading once SERI baud p d s User Port settings Default 19200 N 8 1 baud 300 115200 STATUS Show analog output status SYSTEM Show module information and build date VERS Show software version of the module XPRES Set the value for pressure compensations temporarily M211024EN A Chapter 4 Operation Table 7 Advanced Serial Commands Command Description ACAL Calibrate analog output AMODE Set show analog output mode ASEL RH TD Set show analog output quantities and scaling ATEST Test analog output forces the output ot the given value CALINFO Set show calibration info CRH Calibrate capacitance measurement after sensor change CT Calibrate temperature measurement FRESTORE Restore all module settings to factory defaults L Show user adjustment parameters LI Set user adjustment parameters RHCAL Calibrate humidity measurement SMODE STOP RUN POLL Set the serial interface mode ZERO Set correction by trimmers to zero Device Information and Status VAISALA Show Device Information The command outputs a listing o
3. Perform a capacitance adjustment using CRH command Measurement stops with following errors active Analog output test on no measurements done MeasTask not calculating ATEST You are testing the analog output using ATEST command This is normal type ATEST to stop the test and remove this error Serial line command not working outputs Unknown command 62 Mistyped or unknown command Command not available without using the PASS command first M211024EN A Chapter 6 Troubleshooting Problem or Message Likely Causes and Solutions Cannot connect to serial line Perform the following steps to connect current serial settings of the module are unknown 1 Set your terminal settings to 19200 8 N 1 the default settings of the module 2 Connect to the service port of the module 2 Power up the module and type z on the serial line at least five times 4 The module will come online with the default settings and with the text SERVICE MODE 5 Use the SERI command to set the desired serial settings and use the SAVE command to save them Any of the following errors is Internal error Perform the following steps active 1 Reset or power cycle the module Check if the Program checksum error error is gone Parameter storage 2 Return the module to factory settings using the checksum error FRESTORE command Check again Sensor coefficient checksum 3 If the error is
4. 131 F 70 180 C 94 356 F Stainless steel probe 70 180 C 94 356 F Plastic grid filter 20 80 C 4 176 F Membrane filter 20 80 C 4 176 F Porous PTFE filter 70 180 C 94 356 F Stainless steel sintered filter 70 180 C 94 356 F Probe mounting flange 70 180 C 94 356 F Electromagnetic compatibility Complies with EMC standard EN61326 1 light industrial level Inputs and Outputs Analog output types 1 output selectable 2 wire model 3 wire model 4 20 mA loop powered 0 20 mA 0 1 V SV 10V Service port M8 connector for USB cable Operating voltage 2 wire model 3 wire model 24 VDC 10 35 VDC or 24 VAC 15 35 VDC or 24 VAC when 0 10 V output is used Typical power consumption 6 mA see Table 10 below Table 10 HMM100 3 wire Model Current Consumption Output DC Supply Supply Load Typ Current Max Current Voltage DC Voltage AC Resistance Consumption Consumption 0 1V 10 35 VDC 9 24VAC 210kO 6mA 10 mA 0 5V 10 35 VDC 9 24VAC 210kO 6mA 10 mA 0 10V 15 35 VDC 14 24 VAC 210kQ 6mA 10 mA 0 20mA 10 35 VDC 9 24VAC 100 6 26 mA 10 30 mA 0 20 mA 20 35 VDC 17 24 VAC 5000 6 26 mA 10 30 mA Current consumption depends on the output current 66 M211024EN A Chapter 7 Technical Data Mechanics Servic
5. 2010 First version Related Manuals Table 2 Related Manuals Manual Code Manual Name M211002EN HMM100 Quick Reference Guide M211078EN Module Housing for Humidity Module HMM10 Quick Reference Guide M211079EN Mounting Bracket for Humidity Module HMM10 Quick Reference Guide M211080EN Mounting Flange for Humidity Probes Quick Reference Guide General Safety Considerations Throughout the manual important safety considerations are highlighted as follows Warning alerts you to a serious hazard If you do not read and follow instructions very carefully at this point there is a risk of injury or even death Caution warns you of a potential hazard If you do not read and follow instructions carefully at this point the product could be damaged or important data could be lost NOTE Note highlights important information on using the product M211024EN A Chapter 1 General Information Product Related Safety Precautions WARNING CAUTION The HMM100 module delivered to you has been tested for safety and approved as shipped from the factory Note the following precautions Ground the product and verify outdoor installation grounding periodically to minimize shock hazard Do not modify the unit Improper modification can damage the product or lead to malfunction ESD Protection Recycling Electrostatic Discharge ESD can cause immediate or latent damage to electronic cir
6. After entering the low limit you must measure and enter the high limit also Example analog output in 4 20 mA mode gt acal Il mA 234 981 I2 mA 20 002 2 00985160E 03 a0 1 12789450E 03 al 0 00000000E 00 a2 OK gt Example analog output in 0 I V mode gt acal V1 V 0 V2 V 0 998 5 45999950E 02 a0 1 64128260E 03 al 0 00000000E 00 a2 OK gt VAISALA 39 USER S GUIDE Configuring Serial Line Operation 40 Set Serial Line Settings Use the SERI command to show or set the serial line settings Use the SAVE command after changing the settings to store them The new settings will be taken into use when the module is reset or powered up SERI b p d s lt cr gt where B baud rate 9600 19200 38400 76800 115200 P parity n none e even o odd D databits 7 or 8 S stop bits 1 or 2 Examples gt seri Baud P D S 19200 N 8 1 gt gt seri 9600 e 7 1 Baud rate 9600 Parity E Data bits 27 Stop bits Hd gt save Saving settings done gt Set Terminal Echo To show or set the terminal echo status use the ECHO command ECHO ON OFF lt cr gt Examples gt echo Echo ON gt gt echo on Echo ON gt M211024EN A Chapter 4 VAISALA Operation Set Module Address To operate in the POLL mode the module must have an address If multiple modules share the same serial line each mo
7. LI command if necessary gt M211024EN A Chapter 5 Maintenance 10 11 12 13 VAISALA Use the ERRS command to see that no errors are active gt errs Use the PASS command to enable the advanced commands gt pass 1300 Turn both trimmers to zero using the Phillips head screwdriver and use the ZERO command to set their correction to exactly zero gt Zero Insert the probe in the LiCl salt chamber of the humidity calibrator 11 RH and wait for 20 40 minutes for the reading to stabilize Give the CRH command The output from the command shows the currently measured RH value and prompts you to enter the value of the reference 1 This is the reference on the dry end which produces the offset correction for the measurement gt crh RH 10 97112003 Refl You now have three choices To apply the correction type 11 and press ENTER assuming you are using the HMK15 and the LiCl salt To exit the CRH command without adjusting the measurement press the ESC key and exit this procedure To refresh the measured value without typing in the correction press ENTER If you only want to perform a one point calibration offset correction press the ESC key after entering the correction The CRH command will exit and you can move to step 14 RH 11 0800360 Refl 11 Press any key when ready gt To continue with the calibration of the wet end gain correction press ENTER Inse
8. USER S GUIDE ee 0905 042 Figure 1 HMM100 Humidity Module with Probe Basic Features and Options Vaisala HUMICAP 180R humidity sensor Plastic or stainless steel probe Analog output options 4 20 mA loop powered 2 wire output model 0 20 mA or0 1 5 10 V 3 wire output model user configurable using service port Cable lengths 0 65 m 1 55 m or 2 9 m for plastic probe 1 55 m or 2 9 m for stainless steel probe Various filter types see section Filter Types on page 16 Optional installation accessories Probe mounting flange Probe mounting clamp Mounting bracket with lid Module housing IP65 Service port for maintenance Optional USB cable for easy access 14 M211024EN A Chapter 2 Product Overview Probe Types VAISALA The HMM100 can be ordered with a plastic or stainless steel probe The plastic probe is suitable for most applications Both probe types have the same operational temperature range Note that the operational temperature range is also affected by the filter see section Filter Types on page 16 Figure 2 below shows the plastic probe with a membrane filter top and the stainless steel probe with a sintered stainless steel filter bottom 0909 021 Figure 2 Probe Types 15 USER S GUIDE Filter Types The available filters for HMM100 are shown in Figure 3 below All filters are 12 mm in diameter and can be used in both the pla
9. 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 See section Technical Support on page 63 Table 9 Problem or Message Measurement not working any of the following errors active Temperature sensor open circuit not calibrated Humidity sensor open circuit not calibrated Temperature sensor values out of range Troubleshooting Table Likely Causes and Solutions Sensor s damaged or missing Open the filter and check Calibration is not done Calibrate the module Check the supply voltage of the module Check the analog output mode using the AMODE command Humidity measurement appears to be wrong The following errors may be active RH reading too high RH reading too low Check for condensation on the probe and sensor Check that you are not applying temperature compensation in the measurement system HMM100 has its own Check for heat conduction through the cable Place more cable in the chamber if needed Check the position of the trimmers Use the L command to check the currently applied calibration correction Calibration is not done Calibrate the module The following error is active Capacitance out of range Sensor broken Sensor disconnected Sensor pins twisted and touching Wrong sensor type inserted Sensor replaced but capacitance not adjusted
10. correction The RHCAL command will exit and you can move to step 14 RH 10 99505360 Refl 11 Press any key when ready gt To continue with the calibration of the wet end gain correction press ENTER Insert the probe in the NaCl salt chamber 75 RH and wait for 20 40 minutes for the reading to stabilize Type 75 and press ENTER to apply the correction assumes you are using the HMK15 and the NaCl salt RH 75 01785200 Ref2 75 OK gt The RHCAL command is now finished and both adjustments have been applied Use the L command to verify that the new user adjustment parameters are in use gt l Measure the value of the analog output to verify that the measurement is OK 55 USER S GUIDE 56 Temperature Calibration CT The procedure below describes a temperature T measurement calibration using serial line commands You can use the procedure to do a one point calibration offset or a two point calibration offset and gain For two point calibration the second reference point must be at least 20 C warmer than the first 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 PC 2 Start a terminal application and set the correct connection settings The default serial settings are 19200 8 N 1 Remember to check which COM port the USB cable is us
11. still active contact a Vaisala error service center Current settings checksum error Default settings checksum error Log corrupted Resistance measurement Technical Support For technical questions contact the Vaisala technical support via email helpdesk vaisala com For contact information of Vaisala Service Centers see http www vaisala com services servicecenters html VAISALA 63 USER S GUIDE This page intentionally left blank 64 M211024EN A Chapter 7 Technical Data CHAPTER 7 TECHNICAL DATA This chapter provides the technical data of the HMM100 Specifications Performance Relative Humidity Measurement range 0 100 WRH Accuracy including non linearity hysteresis and repeatability Temperature range 20 40 C 4 104 F 0 90 RH 2 RH 90 100 RH 3 RH Temperature range 40 20 C 40 4 F 40 180 C 104 356 F 0 90 RH 2 5 RH 90 100 RH 3 5 RH Factory calibration uncertainty 20 C 1 5 RH Humidity sensor Vaisala HUMICAP 180R Dewpoint Temperature Measurement range 20 100 C 4 212 F Ty Accuracy including non linearity hysteresis and repeatability when dewpoint depression lt 20 C Ambient temperature dew point 2 C Ta VAISALA 65 USER S GUIDE Operating Environment Operating temperature range Component board Plastic probe 5 55 C 23
12. Measurement Output urrrrranrrnnnnvnnrnvennnnrrnnnnnnnenvenenr 33 Set Output Interval aonrnnonnnnnnrrrnnnrnnnnnvnnonvrnnnnrnnnnnnnnnnvenen 34 Output a Reading Once r mmnrvnrnvvnnnrrvnnnrvnrrrrvnvnrrnsnnrnnenvenenr 34 Calibration Command e ernnnnnvennnnnnvennnnnnvennnnnnnnnnnnnnnnennnnnnenn 35 Calibrate Humidity Measurement ccccesseeeeeesteeeeeeees 35 Calibrate Temperature Measurement rrrrnnrnrrrvnnrnrrrrrnnnn 36 Calibrate Capacitance Measurement c ccccesseeeeeeees 37 View User Adjustment Parameters n 38 Set User Adjustment Parameters ccccccsseeesssteeeeeees 38 Zero the TrIMMETS cceccccceessececeesneeecesseeeeesesaeeeeseneeeeeeaas 39 Calibrate Analog Output arrrrronnrvrrrrrnnvrrrrrnnrnerrrnnrnrrrrnnnnsn 39 Configuring Serial Line Operation rrsssrnnnvvnnnnvnnnnnvnnnnvnnnnnr 40 Set Serial Line Settings rrrrrnrrrnnnrrnnnnvnnnnrrnnnnrnnnnnnnnrnvnnenr 40 Set Terminal Echo rsrnnnnannvnnnnrnanrrnnrsnnnnrnnrssnnrnrsrsnnvsssrsnnnne 40 Set Module Address rrnrannvvrnnrnnvvrnrrnnnnnnnrrrnnnrnrrrrnnnnrsrrnnnne 41 Set Serial Interface Mode rrmnrnsnvvnnrnavnvnrrnannvnrrrrnnnnnrrrrnnnne 41 Configuring Measurement Parameters rrrxnnrnrnnnnnvnnnnnnnnenn 42 Set Environmental Compensation Values rrrrrrrrrerrnnrnr 42 Set Temporary Pressure Compensation Valu 04 43 Configuring Analog Output rrnnnvnnnnnvnnn
13. Most settings have to be saved or the changes are lost at the next reset or power down NOTE The SMODE command saves the new serial mode immediately a separate SAVE command is not needed VAISALA SAVE lt cr gt Example gt save Saving settings done gt Restore Saved Settings Use the RESTORE command to restore saved settings to the module All unsaved changes will be lost RESTORE lt cr gt Example gt restore Restoring default settings done gt 47 USER S GUIDE 48 Reset the Module Use the RESET command to reset the module Upon reset or power up the module enters the serial mode that has been set with the SMODE command RESET lt cr gt Example module set to serial mode STOP will output module software version at reset gt reset HMM100 VAISALA 1 1 10 3031 gt 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 The module will revert back to the factory calibrated settings FRESTORE lt cr gt Example gt frestore Restoring factory defaults done gt M211024EN A Chapter 5 Maintenance CHAPTER 5 MAINTENANCE This chapter provides information that is needed in basic maintenance of the HMM100 Changing the Filter The filter on the probe should be replaced when it is damaged or dirt
14. VAISALA USER S GUIDE Vaisala HUMICAP Humidity Module HMM100 M211024EN A PUBLISHED BY Vaisala Oyj Phone int 358 9 8949 1 P O Box 26 Fax 358 9 8949 2227 FI 00421 Helsinki Finland Visit our Internet pages at www vaisala com Vaisala 2010 No part of this manual may be reproduced in any form or by any means electronic or mechanical including photocopying nor may its contents be communicated to a third party without prior written permission of the copyright holder The contents are subject to change without prior notice Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of Sale Table of Contents CHAPTER 1 GENERAL INFORMATION unnnnrnnvvnnnnvnnnnnvnnnnnnnnnvnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnenn 7 About This Manual eeernnannvennnnnnvennnnnnvnnnnnnnnvnnnnnnnnnnnnnnnnennnnnnenn 7 Contents of This Manual sreernrrnnnnrnnnnnvvnrnrrrnnnrrnnnnrnnenvenenr 7 Version Informatio sisirin raira FNRA 8 Related Manuals cccccccceceseeseneececeeeeeeeeaeaeeeeeeeeeeeenaees 8 General Safety Considerations cccscccccesseeesesteeeeeeees 8 Product Related Safety Precautions rrnnnnvonnnnnnvvvnennnnvnvennn 9 ESD Protection ie ssp ctcccccdseccc cack tsccecgsdecedac otsteceecc
15. XXX time unit S MIN or H Example gt intv 1 s Value 2 L Unit 7S gt Output a Reading Once Use the SEND command to output a single measurement reading from the module SEND aa lt cr gt where aa Module address 0 99 Must be specified if the module is in POLL mode and a line has not been opened using the OPEN command Example gt send RH 25 12 T 24 91 C gt M211024EN A Chapter 4 Operation Calibration Commands Commands that have to do with calibration on the serial line are described below For the calibration procedures see section Calibration on page 51 Calibrate Humidity Measurement Use the RHCAL command to perform a one point or two point humidity RH calibration RHCAL lt cr gt When performing a one point calibration you need to place the probe in a single humidity reference with RH lt 50 Run the command and enter the exact RH of the reference after the measurement has stabilized Exit the command by pressing the ESC key before proceeding to the second point see example I below To update the value press ENTER without inputting a value For two point calibration the first point requires a RH lt 35 humidity reference the second point must be RH gt 50 Example one point calibration gt rhcal RH 11 29915720 Ref1 11 3 Press any key when ready OK gt Example two point calibration gt rhcal RH 11 29915720 Refl 11 3 Press an
16. acket can be installed on a DIN rail EE Da gt gt 0911 105 Figure 5 Mounting Bracket with Lid M211024EN A Chapter 2 VAISALA Product Overview 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 A coaxial plug is provided for sealing the gland for the probe cable Figure 6 Optional Module Housing 19 USER S GUIDE Probe Mounting Clamp The optional mounting clamp makes it easy to install the probe on the wall of the measurement environment The probe can be detached for calibration simply by loosening the lower screw Installing the entire probe in the measurement environment prevents heat conduction to the sensor and is the recommended installation method 0906 036 Figure 7 Optional Probe Mounting Clamp 20 M211024EN A Chapter 3 Installation CHAPTER 3 INSTALLATION This chapter provides you with information that is intended to help you install the HMM100 Dimensions 46 5 36 5 s559 3 5 AW 7 12 30 7 0905 044 Figure 8 HMM100 Dimensions VAISALA 21 USER S GUIDE Installing the Module NOTE The measurement probe with cable is attached to the component board at Vaisala Do not disconnect an
17. and After testing the output give the ATEST command again to exit the test mode ATEST xxx lt cr gt where XXX Analog channel output value V or mA Example gt atest 2 5 2 500000 587f gt gt atest gt Other Commands VAISALA 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 HELP lt cr gt 45 USER S GUIDE 46 Enable Advanced Commands Use the PASS command to enable the advanced commands PASS passcode lt cr gt where passcode Use 1300 to enable the advanced commands Example gt pass 1300 gt Display the Currently Active Errors Use the ERRS command to display the currently active error codes For troubleshooting active errors see Table 9 on page 62 ERRS lt cr gt Example no active errors gt errs No errors gt Connecting to the Module in POLL Mode Use the OPEN command to connect to a module that is in POLL mode OPEN aa lt cr gt where aa address 0 99 Example gt open 1 HMM100 1 line opened for operator commands gt M211024EN A Chapter 4 Operation Closing the Connection in POLL Mode The CLOSE command closes the connection to the module CLOSE lt cr gt Example gt close line closed gt Save Changed Settings Use the SAVE command to save changed settings to the module memory
18. by the plastic socket DO NOT TOUCH THE SENSOR PLATE Perform a calibration and adjustment using the CRH command as instructed in section Capacitance Calibration CRH on page 58 Attach a new filter on the probe When using the stainless steel filter take care to tighten the filter properly recommended force 5 Nm 0905 064 Figure 13 Changing the Sensor The following numbers refer to Figure 13 above 1 The HUMICAP 180R sensor 2 Pt1000 sensor do not touch M211024EN A Chapter 5 Maintenance Calibration The recommended calibration interval is one year You should also perform a calibration if the HMM100 does not appear to be within the specified accuracy The HMM100 can be adjusted in two ways Using the onboard trimmers This method requires no serial connection only a small Phillips head screwdriver and a suitable humidity reference The trimmers can adjust up to 5 of reading Using serial commands This method requires a connection to the service port of the HMM100 module For this you need the USB 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 As a humidity reference you can use for example the Vaisala Humidity Calibrator HMK15 The Vaisala Hand Held Humidity and Temperature Meter HM70 is also convenient for checking the reading of the HMM100 Installing the probe properl
19. configuration screen while a session is running click the right mouse button over the session window and select Change Settings from the pop up menu IS PuTTY Configuration Category Session Options controlling local serial and USB lines Terminal E Window 5 Connection Serial or USB line to connectto COM3 Data USB Finder Proxy Telnet Rlogin Serial USB Speed baud Data bits Stop bits Parity Flow control Select a serial USB line Configure the serial USB line 0807 004 Figure 12 PuTTY Terminal Application 29 USER S GUIDE List of Serial Commands All commands can be issued either in uppercase or lowercase The notation lt cr gt refers to pressing the carriage return ENTER key on your computer keyboard Enter a lt cr gt to clear the command buffer before starting to enter commands Table 6 Basic Serial Commands Command Description Show module information 2 Show module information when in poll mode ADDR 0 99 Set the module address for POLL mode CALCS Show measured quantities CLOSE Close the temporary connection returns to POLL mode ECHO ON OFF Set terminal echo ENV 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 99 Open a temporary connection to a POLL mode device
20. cuits Vaisala products are adequately protected against ESD for their intended use However it is possible to damage the product by delivering electrostatic discharges when touching exposed components To make sure you are not delivering high static voltages yourself Handle ESD sensitive components on a properly grounded and protected ESD workbench When this is not possible ground yourself to the equipment chassis before touching the boards Ground yourself with a wrist strap and a resistive connection cord When neither of the above is possible touch a conductive part of the equipment chassis with your other hand before touching the boards Always hold the boards by the edges and avoid touching the component contacts G Recycle all applicable material Dispose of batteries and the unit according to statutory regulations Do not dispose of with regular household refuse VAISALA USER S GUIDE Regulatory Compliances The HMM100 is in conformity with the provisions of the following EU directive s RoHS Directive 2002 95 EEC WEEE Directive 2002 96 EEC The electromagnetic compatibility of the HMM100 has been tested according to the following product family standard EN61326 1 Electrical equipment for measurement control and laboratory use EMC requirements for use in light industrial environments The Electrostatic Discharge test EN 61000 4 2 was not applied to the open fra
21. d reconnect the cable 1 Attach the module securely using the mounting holes on the comers of the component board Use the optional mounting bracket Vaisala order code 225979 if needed 2 Make sure that the module has a good earth connection from the plated mounting hole See Figure 9 on page 22 NOTE The installation holes on the component board are compatible with Vaisala HMM22 and HMM30 humidity modules Remember to disable temperature compensation if any in the measurement system when replacing an old module with the HMM100 The temperature compensation in the HMM100 is always enabled NIVO 198330 cick Z gt I Q 5 AIE 6 0 00 0905 043 Figure 9 Component Board 3 wire version 22 M211024EN A Chapter 3 Installation Installing the Probe 1 Select the mounting location for the probe The probe should be entirely in the measurement environment with sufficient distance to the outer walls of the chamber or duct Air should flow freely around the probe The probe location should represent well the environmental or process conditions and it should be as clean as possible 2 Install the probe in the location Use the probe mounting clamp Vaisala order code 226067 if needed 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 If you cannot
22. drifted significantly For normal adjustment use the RHCAL command instead VAISALA CRH lt cr gt When performing a one point calibration you need to place the probe in a single humidity reference with RH lt 50 Run the command and enter the exact RH of the reference after the measurement has stabilized Exit the command by pressing the ESC key before proceeding to the second point see example I below For two point calibration the first point requires a RH lt 50 humidity reference the second point must be RH gt 50 There must also be at least 30 percentage points of difference between the references Example one point calibration gt crh RH 11 29915720 Refl 11 3 Press any key when ready gt Example two point calibration gt crh RH 11 29915720 Refl 11 3 Press any key when ready RH 75 04306440 Ref2 75 OK gt 37 USER S GUIDE 38 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 lt cr gt The output values are as follows Cp offset and gain capacitance calibrated using the CRH command RH trimmer offset and gain correction by the trimmers RHoffset and gain calibrated using the RHCAL command T offset and gain calibrated using the CT command Example shows default values no user calibration done gt C
23. dule must have a different address For a description of the serial interface modes see section Set Serial Interface Mode on page 41 ADDR nn lt cr gt where nn address 0 99 Example gt addr 1 Address 1 gt 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 SMODE xxx lt cr gt where XXX STOP RUN or POLL In STOP mode outputting only when command is issued any command can be used In RUN mode outputting automatically only command S can be used In POLL mode outputting only when command is issued any command can be used after the line has been opened using the OPEN command The polling mode can be used when more than one module is connected to one serial bus When set to POLL state the modules communicate one at a time when the specific module address is called on the serial line See descriptions of the commands ADDR on page 41 and OPEN on page 45 Examples gt smode stop Output mode STOP gt 41 USER S GUIDE gt smode run Output mode RUN gt gt smode poll Output mode POLL gt Configuring Measurement Parameters 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 u
24. e cable connector Wire size for screw terminals Probe cable lengths Plastic probe Options and Accessories VAISALA M8 series 4 pin male 0 5 1 5 mm 0 65 m 1 55 m 29 m Stainless steel probe 1 55 m 2 9 m Materials Plastic probe PPS Stainless steel probe AISI316 PPS Probe mounting clamp AISI316 Probe mounting flange Silicone AISI316 Mounting bracket bottom plate Al Mounting bracket lid ABS PC Module housing ABS PC Description Item code Humidity sensor HUMICAP180R Membrane filter 10159HM Plastic grid filter 6221 Porous PTFE filter 219452SP Stainless steel sintered filter HM47280SP Mounting bracket with lid 225979 Module housing IP65 226060 Probe mounting flange 226061 Probe mounting clamp set 10 pcs 226067 USB cable 226068 67 USER S GUIDE 68 M211024EN A Chapter 7 Technical Data VAISALA 69 www vaisala com M2 1102 4 EN
25. easurement press the ESC key and exit this procedure To refresh the measured value without typing in the correction press ENTER If you only want to perform a one point calibration offset correction press the ESC key after entering the correction The CT command will exit and you can move to step 14 gt ct T 21 9847 Refl 22 Press any key when ready OK gt To continue with the calibration of the warmer end gain correction press ENTER Insert the probe in the second temperature refence and wait for 20 40 minutes for the reading to stabilize The measurement reading for the second point will appear when the measured temperature is at least 20 C warmer than the first reference point Type the temperature of the second reference point and press ENTER to apply the correction T 44 9847 Ref2 45 OK gt The CT command is now finished and both adjustments have been applied Use the L command to verify that the new user adjustment parameters are in use gt l Measure the value of the analog output to verify that the measurement is OK 57 USER S GUIDE CAUTION 58 Capacitance Calibration CRH Adjusting the capacitance measurement affects measurement accuracy across the entire temperature range This command should be used only when the sensor has been replaced or the measurement has drifted significantly For normal adjustment use the RHCAL command instead Be sure to write down t
26. er on your PC When installing the driver you must acknowledge any security prompts that may appear The driver is compatible with Windows 2000 Windows XP Windows Server 2003 and Windows Vista 1 Check that the USB cable is not connected Disconnect the cable if you have already connected it 2 Insert the media that came with the cable or download the driver from www vaisala com 3 Execute the USB driver installation program setup exe and accept the installation defaults The installation of the driver may take several minutes 27 USER S GUIDE 28 4 After the driver has been installed connect the USB cable to a USB port on your PC Windows will detect the new device and use the driver automatically 5 The installation has reserved a COM port for the cable Verify the port number and the status of the cable using the Vaisala USB Instrument Finder program that has been installed in the Windows Start menu Windows will recognize each individual cable as a different device and reserve a new COM port Remember to use the correct port in the settings of your terminal program There is no reason to uninstall the driver for normal use However if you wish to remove the driver files and all Vaisala USB cable devices you can do so by uninstalling the entry for Vaisala USB Instrument Driver from the Add or Remove Programs Programs and Features in Windows Vista in the Windows Control Panel Terminal Applicat
27. ers 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 Note the current position of the trimmers 2 Insert the probe in the LiCl salt chamber of the humidity calibrator 11 RH and wait for 20 40 minutes for the reading to stabilize 3 If necessary adjust the offset trimmer using a small Phillips head screwdriver to achieve the output reading that corresponds to 11 RH For 4 20 mA output the reading should be 5 76 mA For 0 5 V output the reading should be 0 55 V 52 M211024EN A Chapter 5 Maintenance 4 Insert the probe in the NaCl salt chamber 75 RH and wait for the reading to stabilize 5 If necessary adjust the gain trimmer to achieve the output reading that corresponds to 75 RH For 4 20 mA output the reading should be 16 mA For 0 5 V output the reading should be 3 75 V 6 Optional repeat steps 2 4 to check the adjustment result If you want to undo the adjustment return the trimmers to their original position Calibration and Adjustment Using Serial Line The following provide steps for performing calibrations on the serial line NOTE It is assumed that the module is powered and you can measure the analog output reading Note that the USB cable does no
28. ew mode using the ACAL command See section Calibrate Analog Output on page 39 VAISALA 43 USER S GUIDE 44 AMODE mode lt cr gt where mode Analog output mode Modes for 3 wire output model 0 1V 0 5V 0 10V 0 20mA Modes for 2 wire output model 4 20mA Example show current mode gt amode Ch 4 0 10V gt Example set mode to 0 20 mA gt amode 0 20ma Chl 0 20MA gt Select Analog Output Quantity and Scaling Use the ASEL command to show or select the quantity output by the analog channels and the scaling that is used If you do not enter scaling limits default values are used ASEL xx low high lt cr gt where xx Analog channel output quantity low Low limit of scaling high High limit of scaling Examples gt asel Quantity RH evel Lo 74 0 evel Hi 100 gt M211024EN A Chapter 4 Operation gt asel td Quantity TD eve 10 40 evel Hi 60 gt asel td 10 60 Quantity TD eve 10 f 1 0 evel Hi 60 gt Test the Analog Output Use the ATEST command to test the analog output The ATEST command will force the output to the given value which can then be measured with a calibrated multimeter The command uses the currently selected analog output mode voltage or current so you do not have to specify the unit Before testing check the currently set analog output mode using the AMODE comm
29. f device information lt cr gt Example gt Device Name HMM100 SW Name HM100 SW model VAISALA SW version des 51043031 Serial number Calibrated Address 590 Operating mode 3W Status ON gt 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 section Set Serial Interface Mode on page 41 lt cr gt 31 USER S GUIDE 32 Show Quantities The CALCS command shows the abbreviations of the quantities measured by HMM100 CALCS lt cr gt Example gt calcs RH Td T gt Show Calibration Info Use the CALINFO command to show or set the calibration info field CALINFO location Examples gt calinfo Calibration location VAISALA HELSINKI gt gt calinfo Calibration lab 2 Calibration location Calibration lab 2 gt Show Analog Output Status The STATUS command shows the following information Current analog output state ON for normal ERROR if an error is active Status of analog channel error notification ON for enabled OFF for disabled See section Analog Output Error Notification on page 61 Scaling of the selected output quantity low and high values Error notification level for the current analog output mode STATUS notification lt cr gt where notification If specified enables or disables the analog output err
30. ferably using a humidity reference Optional connect to the service port and use the ATEST command to set the analog output to desired voltage or current Verify that your measurement system shows the correct reading See section Select Analog Output Quantity and Scaling on page 44 Note that ATEST is one of the advanced serial commands that must be activated using the PASS command VAISALA 25 USER S GUIDE 26 This page intentionally left blank M211024EN A Chapter 4 Operation CHAPTER 4 OPERATION This chapter contains information that is needed to operate the HMM100 Using the Service Port The HMM100 has an RS 232 interface on the component board for service use You can connect to it through the 4 pin M8 service port connector on the module Vaisala offers an optional USB cable Vaisala order code 226068 for connecting the module to your PC NOTE The service port is intended for short term use such as calibration For permanent installation use the analog output VAISALA 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 the driver that came with the cable Refer to section Installing the Driver for the USB Cable below for detailed instructions Installing the Driver for the USB Cable Before taking the USB cable into use you must install the provided USB driv
31. gure 5 Mounting Bracket with Lid srnnonnrerorrvrnnrrrnnnrnnerrrnrnrrrnnnnnnrenrenn 18 Figure 6 Optional Module Housing ceccceceeeeeeeeeeeeeeeeeeeeeeneeeeeeeeeees 19 Figure 7 Optional Probe Mounting Clamp cccceeeseeeeteeeseeeeeeeeeeees 20 Figure 8 HMM100 Dimensions enkeier i 21 Figure 9 Component Board 3 wire version ursrrrnonvvnrrrrrnrvrrnnnnvnnnnnr 22 Figure 10 Wiring for 2 wire OUtput rrnrannvrnrnrrnnnnrrnnnnrnnenvnnnnnrnnnnnnnnenneeenn 24 Figure 11 Wiring for 3 wire Output srrrannvrnrnrrnnnnrrnnnnrnnenrvnnnnrnnnnnnenenreeenn 24 Figure 12 PuTTY Terminal Application eosrvronnrrnnnnrnnorrrrnnnrrnnnnrnnennnnenr 29 Figure 13 Changing the S NsSO cccceesceeeeeeeeeee esses eeeeeeseaeeeeaeeeeeeeees 50 Figure 14 Trimmers for Offset and Gain wuasnnnannvnnnnvvnnnrrnnnnrrnnnnvnnrnrnnenn 52 List of Tables Table 1 Manual REVISIONS una tec AAE E SE ENARE CESSES 8 Table 2 Rel ted Manualsn un etae ee aee AEAEE EEE ender hage dier 8 Table 3 Quantities Measured by HMM100 rsrvrannvnnnnvrvnnnrrnnnnrnnennnnrnnne 13 Table 4 Filter Properties varri a E AA e A A EEA TAR iia 16 Table 5 HMM100 Default Serial Interface Setting c eee 28 Table 6 Basic Serial Commands eernrrnnnnnvnrnrrvnnnrrnnnnvnnenvnnnnnrnnennnnnenren 30 Table 7 Advanced Serial Commands rrrrrnrrnnnnvnnnnnvnnonvnnrnrrnnnnnvnnrnrenenr 31 Table 8 Error Levels for Analog Output Modes anrrnrnrrrvnnrr
32. he current capacitance adjustment parameters visible with the L command so that you can restore them manually if necessary The procedure below 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 One point calibration requires a lt 50 RH reference Two point calibration requires additionally a gt 50 RH reference with over 30 RH difference between the two points 1 Connect the USB cable to the service port on the module and to a USB port on your PC 2 Start a terminal application and set the correct connection settings The default serial settings are 19200 8 N 1 Remember to check which COM port the USB cable is using 3 Verify that the connection works by giving the command gt If the module does not respond with device information Check that the module is powered Try the command in case the module is in POLL state open the line using OPEN command if necessary Check your serial line settings and cable connections Power off the module unplug the USB cable restart the terminal application and try again 4 When your serial connection is working use the L command to see the current user adjustment parameters and the status of the trimmers Write down the Cp offset and gain values so you can restore them manually using the
33. iceedgtedieaeezeeaeens 9 Hecyelingr 4xuntdnds interesert 9 Regulatory Compliance rrnssrnnnvvnnnnvnnnnnvnnnnvnnnnnvnnnnnnnnnnnnnnnnnn 10 Patent Notice ccccsseeeceesseeeeeessneeeeensneeeeseseeceeseseeeneeseseeneees 10 Trademarks nnnannnvennnnnnvennnnnnvenennnnvnnennnnnvnnnnnnnvnnnnnnnvennnnnnvnnnnnnne 10 License Agreement nnnnnnnvnnnnnnnvnnnnnnnvnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnenn 10 Warranty seeeeeeasssverrnnnnvennnnnnvennnnnnvvnnnnnnnvnnnnnnnvnnnnnnnvennnnnnvvnennnnn 11 CHAPTER 2 PRODUCT OVERVIEW rnvnnnnnvnnnnnvnnnvvnnnnvnnnnnnnnnnvvnnnnvnnnnnnnnnnnnnnnvnnnnnennnnnnnnnner 13 Introduction to HMM100 Series Humidity Modules 13 Basic Features and OptiOnS rrrswvnnnavnnnnnvnnnnvnnnnnvnnnnnnnnnnvnnnnnnn 14 Probe Types rummssvennnnnnvennnnnnvnnnnnnnvnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnvennr 15 Filter Types erenrnnnnvvnnnnnnnvnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnenn 16 Installation Accessories rrnssrnnnvvnnnnnvnnnnnnnnnvnnnnnvnnnnnnnnnnnnnnnenn 17 Probe Mounting Flange arrvnannvnnonvvnnnrrnnnnnnnnerrvnnnrrnsnnrnsennn 17 Mounting Bracket with Lid erannvvrnnnnnvrrnnnnnnnrnnnnrnnnrnnnrennnne 18 Module Housing IP65 rnrrnnronnnvrnnnonnvrnnnennvrnnnennrnnnrennnnnn 19 Probe Mounting Clamp rsnvrnnnrrnnnnvnnnnnvnnrnvnnnnrrnnnnrnnnnnnnrnnn 20 CHAPTER 3 INSTALLATION niende irreiesite 21 DImenslions mmsiidesaesdsssemsaseenkednstankesedskddnmsakadnkeda sdecuedusciects
34. ing 3 Verify that the connection works by giving the command gt If the module does not respond with device information Check that the module is powered Try the command in case the module is in POLL state open the line using OPEN command if necessary Check your serial line settings and cable connections Power off the module unplug the USB cable restart the terminal application and try again 4 When your serial connection is working use the L command to see the current user adjustment parameters and the status of the trimmers Write down the T offset and gain values so you can restore them manually using the LI command if necessary gt 1 5 Use the ERRS command to see that no errors are active gt errs 6 Use the PASS command to enable the advanced commands gt pass 1300 7 Insert the probe in the temperature reference and wait for 20 40 minutes for the reading to stabilize 8 Give the CT command The output from the command shows the currently measured T value and prompts you to enter the value of M211024EN A Chapter 5 VAISALA Maintenance 10 11 12 13 14 the reference 1 This is the reference on the colder end which produces the offset correction for the measurement You now have three choices To apply the correction type the temperature of the reference in degrees celcius and press ENTER To exit the CT command without adjusting the m
35. install the probe entirely in the measurement environment you can use the probe mounting flange Vaisala order code 226061 to mount the probe through the chamber wall This installation method is not recommended due to possible heat conduction 3 Seal the cable pass through using the probe mounting flange or silicone sealant CAUTION If you seal the cable pass through using silicone sealant do not use a sealant that releases acetic acid when curing Acetic acid may damage the HUMICAP sensor in the probe VAISALA 23 USER S GUIDE Wiring 24 2 wire Output See Figure 10 Provide a 24 VDC supply voltage G m 24 VDC 2 Figure 10 Wiring for 2 wire Output Vin 0905 047 3 wire Output See Figure 11 Provide the required supply voltage according to the output type 10 35 VDC or 24 VAC for 0 20 mA 1 5 V output 15 35 VDC or 24 VAC for 0 10 V output 10 35 VDC 24 VAC Vin OUT SSO 0905 048 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 1 V output M211024EN A Chapter 3 Installation Verifying the Installation To verify that the module has been installed correctly Power up the module and check the output reading pre
36. ion Settings The default settings of the HMM100 serial interface are presented in Table 5 Table 5 HMM100 Default Serial Interface Setting Property Description Value Baud rate 19200 Parity None Data bits 8 Stop bits 1 Flow control None The steps below describe how to connect to the HMM100 using the PuTTY terminal application for 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 Select the Serial settings category and check that the correct COM port is selected in the Serial line to connect to field Note You can check which port the USB cable is using with the Vaisala USB Instrument Finder program that has been installed in the Windows Start menu 4 Check that the other serial settings are correct for your connection and change if necessary Flow control should be set to None unless you have a reason to change it M211024EN A Chapter 4 VAISALA Operation Click the Open button to open the connection window and start using the serial line Note If PuTTY is unable to open the serial port you selected it will show you an error message instead If this happens restart PuTTY and check the settings 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
37. is page intentionally left blank 12 M211024EN A Chapter 2 Product Overview CHAPTER 2 PRODUCT OVERVIEW This chapter introduces the features advantages and the product nomenclature of the HMM100 Introduction to HMM100 Series Humidity Modules VAISALA The HMM100 series humidity measurement modules are open frame modules intended for integration into environmental chambers and other chambers where high temperature tolerance is important The modules provide a single analog output channel for relative humidity RH or dewpoint Ta Dewpoint is the recommended quantity if the measurement environment has significant temperature differences Table 3 Quantities Measured by HMM100 Quantity Range Relative humidity RH 0 100 Dewpoint Td 20 100 C 4 212 F All HMM100 modules include automatic temperature compensation across the operating temperature range using an integrated 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 The cable and probe of the HMM100 are attached at the factory They should remain connected to the module at all times do not cut and re connect the cable 13
38. me module In the final product the module PC board should be installed in a user restricted location enclosure for continued ESD protection DIG Patent Notice The HMM100 is protected by the following patents and patent applications and their corresponding national rights Finnish patent 98861 French patent 6650303 German patent 69418174 Japanese patent 3585973 UK patent 0665303 U S patent 5607564 Trademarks Vaisala HUMICAP is a registered trademark of Vaisala Oyj Windows is a registered trademark of Microsoft Corporation in the United States and or other countries License Agreement All rights to any software are held by Vaisala or third parties The customer is allowed to use the software only to the extent that is provided by the applicable supply contract or Software License Agreement 10 M211024EN A Chapter 1 General Information Warranty VAISALA For certain products Vaisala normally gives a limited one year warranty Visit our Internet pages for more information and our standard warranty terms and conditions www vaisala com services warranty html Please observe that any such warranty may not be valid in case of damage due to normal wear and tear exceptional operating conditions negligent handling or installation or unauthorized modifications Please see the applicable supply contract or Conditions of Sale for details of the warranty for each product 11 USER S GUIDE Th
39. nnnnnnnvennnnnnnnnnnnnnvnnnnnr 43 Set Analog Output Mode rrnnnnnrnnnnvnnnnnvnnnnrrnnnnrnnnnnnnnenvenenr 43 Select Analog Output Quantity and Scaling eee 44 Test the Analog Output srrnonrrnrnnrrnnnnrnnnnvvnrnrrennnrrnnnnrnnnennee 45 Other Commands ssrernnnnnvnvnnnnnvnvnnnnnnevnvnnnnnevnnnnnnnnnnnnnnennnnnnenn 45 Display Command List rnronannrnnnonrrnnnrrnnnnrnnrnrnnnrrrnnnnrnnnennne 45 Enable Advanced CommandS arnrnnannvnnnnrnnnnrrnnnnnrnnrnvenennne 46 Display the Currently Active Errors srrnrnrnnnnrrnnnnnrnnrnvvnennn 46 Connecting to the Module in POLL Mode ceceees 46 Closing the Connection in POLL Mode cccssceeeeeee 47 Save Changed Settings mmrrrnnorvnnnnrrnnnnrnnnnnvnnnrrrennnrnnnnnnnnen 47 Restore Saved Settings rrrannrnnnnvvnnnrrnnnnnvnnrnnnnnnrrnnnnrnnnnnene 47 Reset the Module earennnnnnnonnnnrnvnnnnnnannnnnnrnnrnennenannnnnnrnnnene 48 Restore Factory SettingS cccccseseseeceeeeeseceeeeeseeseeeeeees 48 CHAPTER 5 MAINTENANCE minner ea tate ei ede heed 49 Changing the Filters scciisccccticcacocecssaccuavesasccteccucdcvessusdoateususdeie 49 Changing the Sensor mmmmssvnnrnvvnnnvvnnnnvnnnnnnnnnnvvnnnnvnnnnnnnnnnnennnn 49 CalibratiO Meissenin iaaiaee n NEENA de named 51 Calibration and Adjustment Using Trimmers 0000 52 Calibration and Adjustment Using Serial Line 53 Humidity Calibration RHCAL
40. nnnnvnnrnnren 61 Table 9 Troubleshooting Table anrrnnonrnnnnrrnnnnrnnannrnnonrrnnnnrnnnnnnnnennenenr 62 Table 10 HMM100 3 wire Model Current Consumption earnvrnannrnnnnnre 66 6 M211024EN A Chapter 1 General Information CHAPTER 1 GENERAL INFORMATION This chapter provides general notes for the manual and the product About This Manual This manual provides information for installing operating and maintaining Vaisala HUMICAP Humidity Module HMM100 Contents of This Manual This manual consists of the following chapters VAISALA Chapter 1 General Information provides general notes for the manual and the product Chapter 2 Product Overview introduces the features advantages and the product nomenclature of the HMM100 Chapter 3 Installation provides you with information that is intended to help you install the HMM100 Chapter 4 Operation contains information that is needed to operate the HMM100 Chapter 5 Maintenance provides information that is needed in basic maintenance of the HMM100 Chapter 6 Troubleshooting describes the analog output error notification behavior some common problems their probable causes and remedies and provides contact information for technical support Chapter 7 Technical Data provides the technical data of the HMM100 USER S GUIDE WARNING CAUTION Version Information Table 1 Manual Revisions Manual Code M211024EN A January
41. or notification Allowed values ON and OFF M211024EN A Chapter 4 Operation Example analog output in error state output quantity RH analog output mode 0 10V gt status Channel 0 Status ERROR Notification ON Level Lo 20 Level Hi 100 Error level 0 000000 Show Firmware Version VERS lt cr gt Example gt vers HMM100 HM100 VAISALA 1 1 10 3031 gt Serial Line Output Commands VAISALA 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 The format is fixed R lt cr gt Example gt r RH 25 10 T 24 77 C RH 25 12 T 24 96 C RH 25 17 T 25 20 C Outputting the results continues in intervals issued with the command INTV You can stop the output by entering the S command Stop Measurement Output Use the S command to stop the continuous measurement output S lt cr gt 33 USER S GUIDE 34 Set Output Interval Use the INTV command to show or set the output interval of the serial line measurement messages applies when R command or RUN mode is used The shortest output interval is one second This command has no effect on the operation of the analog output INTV n xxx lt cr gt where n Time interval in range 1 255
42. p offset 10 Cp gain e RH offset trimmer 0 RH gain trimmer 1 RH offset ug RH gain eee offset 2 10 T gain gt Set User Adjustment Parameters Use the LI command to set the user adjustment parameters directly This command is useful for restoring the desired adjustments and removing the effects of calibration without having to perform the factory reset LI lt cr gt 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 Example shows default values gt 1i Cp offset Cp gain RH offset RH gain T offset T gain gt Peck OG oO VM ER Vv ER M211024EN A Chapter 4 Operation Zero the Trimmers After physically turning the trimmers to zero use the ZERO command to set the correction by trimmers to exactly zero It is easy to introduce a small unwanted correction even if trying to zero the trimmers exactly This command eliminates the unwanted correction ZERO lt cr gt gt zero Trimmer positions set to zero gt Calibrate Analog Output Use the ACAL command to calibrate the currently active analog output mode You must use this command if you change the analog output mode using the AMODE command ACAL lt cr gt 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
43. rt the probe in the NaCl salt chamber 75 RH and wait for 20 40 minutes for the reading to stabilize Type 75 and press ENTER to apply the correction assumes you are using the HMK15 and the NaCl salt RH 75 00134550 Ref2 75 OK gt The CRH command is now finished and both adjustments have been applied 59 USER S GUIDE 14 Use the L command to verify that the new user adjustment parameters are in use gt 1 15 Measure the value of the analog output to verify that the measurement is OK 60 M211024EN A Chapter 6 Troubleshooting CHAPTER 6 TROUBLESHOOTING This chapter describes the analog output error notification behavior some common problems their probable causes and remedies and provides contact information for technical support Analog Output Error Notification If the module is unable to measure due to an error the analog output will be set to an error level The error level depends on the currently selected analog output mode see the table below Table 8 Error Levels for Analog Output Modes Analog Output Mode Error Level 0 1V OV 0 5V OV 0 10V OV 0 20 mA 0 mA 4 20 mA 3 8 mA You can check the current status of the analog output via the serial interface by using the STATUS command You can also disable this error notification behavior see section Show Calibration Info on page 32 VAISALA 61 USER S GUIDE Solving Typical Problems
44. s 21 Installing the Module rrrnnnavvnnnnnnvnnnnnnnnvnnnnnnnnnnnnnnnnnnennnnnnenn 22 Installing the Probe rr ssrrrnnannvnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnenenn 23 WIrINg saa EP A beis vnestatecctigstrereseaantes 24 2 WIFE OWU isctee ie art n a aa 24 3 wire Output rerrnnrvrrrrnnrvrerrrnarverrrnavverrrnarserrrnarseersnrneerrnnn 24 Verifying the Installation rrnannvnnnnnnnvonnnnnnnvnnnnnnnvnnnnnnnvnnnnnnnr 25 CHAPTER 4 OPERATION Free 27 Using the Service Port rssrnnnnvnnnnvvnnnnvnnnnnvnnnnvnnnnnnnnnnnnnnnnvnnnnnnn 27 Installing the Driver for the USB Cable rrnnrnnnnnnnrnnnvnnnnnn 27 VAISALA USER S GUIDE Terminal Application Settings rarnrnnonrvnrnrrvnnnnrnnnnrnnrnnnen 28 List of Serial Commands rrnnverrnnnnvnvennnnvnvnnnnnnvnvennnnnnnennnnnnenr 30 Device Information and StatusS rrrsrnnnnnvnnnnvnnnnvnnnnnnnnnnnvnnnnenn 31 Show Device Information rrrrnvnrrnnrnnnvrnrrrrnnrnrrrrnnvnnerrrnnnne 31 Show Quantities errrrrrnrrnnrrrrnrrnsnrnnrrrrnnvnrsrrnnrnnrsrrnnnnesrrnnnne 32 Show Calibration Info rrrnrvrrrrrnnvrnrrrrnvrnnrrrrnnrnrrrrnnrnrrrrnnnne 32 Show Analog Output Status rrrrarnrrnnnnvrnrnrrrnnnrrnnnnnnnrnrenenr 32 Show Firmware Version rnnrnnanvrnnrnannnvnrrnrnnvnnrsrnnvnrsrsnnnnne 33 Serial Line Output CommandS rrrrnnnnnvnnnnvnnnnvnnnnnvnnnnnnnnnnvennn 33 Start Measurement Output rarvrannvrnnnnvnnonvvrnnnrrnnnnrnnrnvenenr 33 Stop
45. sing ENV command is a permanent value which will survive a restart Use the command XPRES instead if the value is changed frequently see section Set Temporary Pressure Compensation Value on page 43 ENV x xxxx lt cr gt where X XXXX Absolute pressure in the measuring environment The default is 1 013 The pressure unit is bar Example gt env Pressure bar 1 013 gt gt env 0 980 Pressure bar 0 98 gt save Saving settings done gt NOTE 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 42 M211024EN A Chapter 4 Operation Set Temporary Pressure Compensation Value Use the XPRES command to show or set the temporary ambient pressure value for pressure compensation This value is cleared to 0 0 at reset XPRES x xxxx lt cr gt where X XXXX Absolute pressure in the measuring environment The pressure unit is bar Example gt xpres Pressure bar 0 gt gt xpres 1 029 Pressure bar 14029 gt Configuring Analog Output Set Analog Output Mode Use the AMODE command to show or set the operation mode of the analog output This command is only useful with the 3 wire output module as the output on the 2 wire model is always 4 20 mA loop powered NOTE If you change the analog output mode you must calibrate the n
46. stic and stainless steel probe Each filter has its own operational temperature range For order codes see section Options and Accessories on page 67 0905 046 Figure 3 Filter Types Table 4 Filter Properties No Filter Diameter Pore Size Temperature Range 1 Plastic grid filter 12mm 20 80 C fastest response time 4 176 F 2 Membrane filter 12 mm 0 2 um 20 80 C 4 176 F 3 Porous PTFE filter 12 mm 8 um 70 180 C general purpose 94 356 F 4 Stainless steel 12mm 38 um 70 180 C sintered filter 94 356 F M211024EN A Chapter 2 Product Overview Installation Accessories For order codes of the installation accessories see section Options and Accessories on page 67 Probe Mounting Flange The probe mounting flange is used to seal the cable pass through in the chamber wall The flange can also be used to hold the probe itself in case the probe cannot be mouted on the chamber wall otherwise This mounting is not ideal since leaving the probe cable completely outside the measurement environment may cause heat conduction that affects the measurement 0911 109 Figure 4 Optional Probe Mounting Flange VAISALA 17 USER S GUIDE Mounting Bracket with Lid The optional mounting bracket includes a metal backplate and a plastic lid for the component board The bracket does not provide IP rated protection The br
47. t supply operation power to the module You must power it normally through the screw terminals NOTE For detailed information on using the service port USB cable and the serial line commands see Chapter 4 on page 27 VAISALA 53 USER S GUIDE 54 Humidity Calibration RHCAL The procedure below describes a humidity measurement calibration 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 One point calibration requires a lt 50 RH reference Two point calibration requires additionally a gt 50 RH reference with over 30 RH difference between the two points 1 Connect the USB cable to the service port on the module and to a USB port on your PC 2 Start a terminal application and set the correct connection settings The default serial settings are 19200 8 N 1 Remember to check which COM port the USB cable is using 3 Verify that the connection works by giving the command gt If the module does not respond with device information Check that the module is powered Try the command in case the module is in POLL state open the line using OPEN command if necessary Check your serial line settings and cable connections Power off the module unplug the USB cable restart the terminal application and try again 4 When your serial connection is
48. working use the L command to see the current user adjustment parameters and the status of the trimmers Write down the RH offset and gain values so you can restore them manually using the LI command if necessary SL 5 Use the ERRS command to see that no errors are active gt errs 6 Use the PASS command to enable the advanced commands gt 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 gt ZErO 8 Insert the probe in the LiCl salt chamber of the humidity calibrator 11 RH and wait for 20 40 minutes for the reading to stabilize M211024EN A Chapter 5 VAISALA Maintenance 10 11 12 13 14 15 Give the RHCAL command The output from the command shows the currently measured RH value and prompts you to enter the value of the reference 1 This is the reference on the dry end which produces the offset correction for the measurement gt rhcal RH 10 99505360 Refl You now have three choices To apply the correction type 11 and press ENTER assuming you are using the HMK15 and the LiCl salt To exit the RHCAL command without adjusting the measurement press the ESC key and exit this procedure To refresh the measured value without typing in the correction press ENTER If you only want to perform a one point calibration offset correction press the ESC key after entering the
49. y Do not attempt to clean the filter using compressed air solvents or mechanical action Wiping the filter may block its pores and or deposit residue on the filter Turn the filter counter clockwise to loosen it 2 Remove the filter from the probe Be careful not to touch the sensors with the filter Without the filter in place the sensors are easily damaged handle the probe carefully 3 Check that the O ring is undamaged and in place Install a new filter on the probe and tighten it so it is finger tight Make sure the filter sits straight and meets the threads properly New filters can be ordered from Vaisala For available filters see section Filter Types on page 16 The order codes of the filters are listed in section Options and Accessories on page 67 Changing the Sensor The user can replace the HUMICAP180R sensor with a new one The new sensor must be of the HUMICAP180R type Do not attempt to use a different sensor type NOTE 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 Refer to section Calibration on page 51 VAISALA 49 USER S GUIDE 50 Remove the filter from the probe by turning it counter clockwise Remove the damaged sensor and insert a new one Handle the new sensor
50. y key when ready RH 75 04306440 Ref2 75 OK gt VAISALA 35 USER S GUIDE 36 Calibrate Temperature Measurement Use the CT command to perform a one point or two point temperature T calibration CT lt cr gt When performing a one point calibration you need to place the probe in a single temperature reference Run the command and enter the exact temperature of the reference after the measurement has stabilized Exit the command by pressing the ESC key before proceeding to the second point see example below To update the value press ENTER without inputting a value For two point calibration the second reference point must be at least 20 C warmer than the first The measurement reading for the second point will appear when this requirement is met Example one point calibration gt ct T 21 9827 Refl 22 Press any key when ready OK gt Example two point calibration gt ct 22 0007 Refl 22 Press any key when ready 44 9847 Ref2 45 OK gt M211024EN A Chapter 4 Operation CAUTION Calibrate Capacitance Measurement Use the CRH command to perform a one point or two point correction to the capacitance measurement of the module This command changes the offset and gain of the measured capacitance and therefore affects humidity measurement over the entire temperature range This command should be used only when the sensor has been replaced or the measurement has
51. y will also help with the calibration Ideally the probe should be placed completely in the environment with enough cable to prevent heat conduction and to allow the probe to be moved during calibration placed in the HMK 15 calibrator for example NOTE If you have changed the HUMICAP sensor you should center the trimmers and perform a calibration and adjustment using the serial command CRH For normal calibration and adjustment use the RHCAL and CT commands NOTE You can only calibrate the humidity measurement RH and temperature measurement T The module calculates the dewpoint using RH and T values VAISALA 51 USER S GUIDE Calibration and Adjustment Using Trimmers HMM100 series modules have two trimmers mounted on the component board These trimmers allow for easy adjustment of the offset and gain of the humidity measurement The modules are shipped with the trimmers centered Turning the trimmer counter clockwise will decrease the offset or gain and turning clockwise will increase it The adjustment range is 5 for both offset and gain Offset correction requires a lt 50 RH reference Offset and gain correction requires additionally a gt 50 RH reference with over 30 RH difference between the two points NOTE The trimmers will only turn 135 degrees each way less than half a rotation Do not force the trimmer past the stopping point 0905 045 Figure 14 Trimm

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