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USER'S GUIDE

 

Vaisala HUMICAP® Set for Measuring

Humidity in Concrete

HM44

 

 

M010068EN-A

Summary of Contents for HUMICAP HM44

Page 1: ...USER S GUIDE Vaisala HUMICAP Set for Measuring Humidity in Concrete HM44 M010068EN A...

Page 2: ...echanical 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...

Page 3: ...eeding the offset correction 8 Feeding the gain correction 8 Changing the settings 9 Enter the setup menu 9 Display units 10 Setting the automatic power off function 10 Selecting the display quantitie...

Page 4: ...n data collecting REC READ mode 26 CHAPTER 7 TRANSFERRING DATA TO A PC 28 Giving the communication parameters 29 Transferring the data 31 Commands 32 PLAY Transferring the data 32 CPLAY Setting charac...

Page 5: ...arning 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 Caution warns you of a potential hazard If...

Page 6: ...rt shall should Vaisala so require be sent to the works of Vaisala or to such other place as Vaisala may indicate in writing freight and insurance prepaid and properly packed and labelled unless Vaisa...

Page 7: ...cal tool for humidity measurements of concrete or other structures The accuracy and reliability performance of the HMP44 probe comes from advanced Vaisala HUMICAP 180 sensor The HM44 package includes...

Page 8: ...error As the curve below shows if the temperature is 20 C and the relative humidity 100 RH a difference of 1 C between the measured object and the probe causes an error of 6 RH When the humidity is 9...

Page 9: ...e device on RH T C Feeding the individual adjustment coefficients Each probe has an individual adjustment coefficients which are written in the calibration certificate see Appendix 1 These coefficient...

Page 10: ...on the second line are blinking RH set 2 Feed the individual offset correction see the calibration certificate in the HMI41 memory with buttons and Each time the button is pressed the numbers change...

Page 11: ...Changing the settings Change the settings ONLY if there is a need to change the following factory settings Factory settings display units 0 metric automatic power off 5 minutes display quantities 0 RH...

Page 12: ...ntity metric non metric relative humidity RH RH RH temperature T C F dewpoint temperature Td C F absolute humidity a g m3 gr ft3 mixing ratio x g kg gr lb wet bulb temperature Tw C F Setting the autom...

Page 13: ...ratio x The number on the display indicates the following quantities 0 RH T Td 1 RH T Td abs 2 RH T Td Tw 3 RH T Td x select the number with buttons and press ENTER and the display changes to show th...

Page 14: ...w changes to show the text START Change this setting only if there is no ID marking on the indicator label Otherwise do not change this setting Select the function In cases where an indicator or a pro...

Page 15: ...ng takes about three days When the equilibrium stage has been reached the air humidity in a drilled hole and the concrete humidity become equal Then it is possible to make the humidity measurement For...

Page 16: ...idity spreads evenly throughout the slab until it corresponds to readings measured at the depth of approximately 40 of the slab Figure 5 1 Humidity profile before and after the coating DRYING IN ONE D...

Page 17: ...ng wooden floor coverings with moisture barrier plastic film between wood and concrete 1 Sis RYL 2000 Code of Building practice RT 14 10668 2000 ISBN 951 682 506 0 page 332 Other materials Maximum RH...

Page 18: ...sufficient depth see page 13 Clean the hole thoroughly e g by blowing air or with a vacuum cleaner 2 Press a plastic sleeve into the hole If you need something to press it with use e g the lid of the...

Page 19: ...Figure 5 3 Sealing the sleeve with a plastic plug 5 Fold the cable in the installation cover and close the lid Leave the probe to stabilize before starting the measurements plastic sleeve probe rubbe...

Page 20: ...e stabilized Connect the cable in the connector PROBE at the bottom of the HMI41 Then follow the instructions of this manual Turn the indicator on with the button ON OFF RH T C Numbers on the first li...

Page 21: ...s on the display HOLD mode Press the HOLD button to freeze the display to show the current readings RH hold T C The normal display mode returns with buttons MODE or ENTER If the indicator turns itself...

Page 22: ..._____________________________________________________________________________ 20 If you press the button HOLD when the indicator is in the MIN mode the maximum readings measured after power up appear...

Page 23: ...ve again Data collecting modes The following three modes are used when collecting data REC AUTO automatic data collecting REC CATCH manual data collecting REC READ reading the measurement results Ente...

Page 24: ...n time appears on the display If the previously set duration time is too long for the current battery charge the longest calculated duration time possible appears instead This is also indicated with t...

Page 25: ...g to the following 1 5 min each pressing 1 minute 10 min 15 min 30 min 1 6 h each pressing 1 hour 12 h Note Interval can not be set longer than the measurement duration The text LO on the display indi...

Page 26: ...You can store 199 measurement readings in the indicator memory numbers 1 199 In automatic data collecting you can store 200 readings 0 199 End data collecting by turning the indicator off You can rea...

Page 27: ...ber 0 is the sequence number of the measurement This number helps to estimate the time of the measurement during automatic data collecting provided that the starting time and the measurement interval...

Page 28: ...nt modes on the display MIN HI MAX HI MIN LO and MAX LO These modes indicate the maximum and minimum readings measured for the quantities on the display HI and LO tell you whether the reading observed...

Page 29: ...t line quantity decimals of the 2nd line RH min Hi T C RH max Hi T C ENTER maximum reading of the 1st line quantity RH max Hi T C decimals of the 2nd line ENTER RH min Lo T C minimum reading of the 2n...

Page 30: ...DATA TO A PC The readings that have been stored in the HMI41 memory manually or automatically in the data collecting mode can be transferred to a computer and then printed if desired In order to do t...

Page 31: ...tables Table 7 1 Giving parameters in Windows 3 1 MENU DESCRIPTION PROGRAM MANAGER ACCESSORIES double click TERMINAL double click Settings click Communications click and select parameters see figure...

Page 32: ...double click Hyperterminal click Connection Description type the name of the connection e g HMI41 in the appropriate field and select an icon if available click OK Connection Description type the nam...

Page 33: ...__________________________________________________ Transferring data to a pc VAISALA__________________________________________________________________________ 31 Figure 7 3 Communication parameter sel...

Page 34: ...open Turn the HMI41 on with the ON OFF button A text similar to the following should now appear on your computer display HMI41 2 02 Commands PLAY Transferring the data To transfer the data on your PC...

Page 35: ...een decimals and fields With the CPLAY command you can select what you want to appear between decimals and various fields An example cplay Desimal separator Field separator TAB example 1 01 00 00 38 7...

Page 36: ...ameters it uses default setting Outputting the HMI41 settings If you need to know which parameters and settings are currently stored in your HMI41 indicator type and press ENTER HMI41 2 01 Serial numb...

Page 37: ...d to check the new coefficients and write them down The coefficients can be checked by pressing ENTER for about 5 seconds continuously and the offset correction is displayed press ENTER once more and...

Page 38: ...the table below you can find a summary of all the calibration options RH set T Default calibration restores the factory settings of the humidity and temperature calibrations RH set One point humidity...

Page 39: ...ee times and the following appears RH set Press ENTER to activate the two point humidity calibration mode A message similar to the following appears with the first line blinking RH set Lo The blinking...

Page 40: ...t Press ENTER and the HMI41 indicator shows the value that the probe is currently measuring Wait for the reading to stabilize about 30 minutes and press ENTER Now the higher humidity value is correcte...

Page 41: ...The probe can be sent to Vaisala service for sensor change Replacing the filter The combination of a grid of the probe head and the membrane filter can be changed if needed order code 17039HM Vaisala...

Page 42: ...es condensation on the probe and evaporation may take very long see page 6 replace worn plastic sleeves make sure that the lid of the installation cover and the rubber plug are carefully closed calibr...

Page 43: ...t the probe stabilize see page 18 make sure that the probe cable is correctly connected to the HMI41 check that the grid and the filter are clean if the individual adjustment coefficients have been en...

Page 44: ...RH T probe cable model for dirty or hot processes HMI41 Humidity and temperature indicator HUMICAP 180 Humidity sensor 17039HM Membrane filter 19266HM Plastic sleeve 12 pcs 19267HM Rubber plug 12 pcs...

Page 45: ...ts in very tight places e g in joint spaces between tiles or in air conditioning channels as well as for measuring the equilibrium humidity of e g timber HMP44L for measuring humidity in concrete and...

Page 46: ...ty Measurement range 0 100 RH non condensing Accuracy at 20 C 2 RH 0 90 RH 3 RH 90 100 RH Temperature dependence 0 5 1 0 1 5 0 5 1 0 1 5 RH 20 C 10 0 10 20 30 40 50 60 0 Typical long term stability in...

Page 47: ...P44L 2 7 m Probe diameter 12 mm Probe length 69 mm Operating temperature range of electronics 40 60 C Housing material ABS plastic Housing classification IP65 NEMA 4 Sensor protection membrane filter...

Page 48: ...h continuous use Operating humidity range 0 100 RH non condensing Operating temperature 20 60 C Storage temperature 40 70 C Display two line LCD Housing material ABS plastic Housing classification IP...

Page 49: ..._________________________________________________ Technical data VAISALA__________________________________________________________________________ 47 APPENDIX 1 Example of a calibration certificate Ad...

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