GANN M 4050 Instruction Manual
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GANN M 4050 Instruction Manual

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HYDROMETTE
M 4050
Instruction Manual

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  • Page 1 HYDROMETTE M 4050 Instruction Manual...
  • Page 2 Copyright 1997 by GANN Mess- u. Regeltechnik GmbH All rights reserved. Without written consent of GANN GmbH no part of this publication and of the software described in it must be reproduced by any means and in any form, translated, processed or stored in data processing or similar systems, distributed or used for purposes other than those this manual is designed for.

  • Page 3: Table Of Contents

    Measuring Instrument Hydromette M 4050 Table of contents ......................2 Declaration of conformity ....................5 Important preliminary remarks ..................6 Description of Hydromette M 4050 ................9 Technical specifications ....................11 Measuring ranges ......................12 Power supply ....................... 13 Connecting sockets ..................... 14 Function of keys ......................
  • Page 4 Instructions for wood moisture measurement ............31 Handling of measuring electrodes for resistance measurement ........34 General information on wood moisture measurement ............. 38 Handling of active electrode MH 34 ................. 42 Monitoring kiln drying timber .................... 43 Conversion table EMC/wet bulb depression ..............50 Instructions for structural moisture measurement .............
  • Page 5 Measuring electrodes and other accessory Measuring electrodes for wood moisture measurement ..........105 Measuring electrodes for structural moisture measurement .......... 107 Air humidity sensors ....................... 111 Temperature probes ....................... 116 Other accessory ......................118 Accessory for data transmittal ..................120 Accessory for monitoring kiln drying ................

  • Page 6: Declaration Of Conformity

    GANN Mess- u. Regeltechnik GmbH EU Declaration of Conformity as defined by machinery directive 89/392/EEC Annex II A We hereby declare that the handheld moisture meter(s) HYDROMETTE M-4050 supplied by us conform to the relevant safety- and health-related requirements of the appropriate EU Directive as well as to the EU Directive on Electromagnetic Compability (89/336/EU) in version 93/31/EU.

  • Page 7: Important Preliminary Remarks

    Important preliminary remarks It is of great importance to carefully read and understand the following instructions. Warranty claims for any damage caused by non-observance of these instructions cannot be accepted. In no event will the manufacturer be liable for damages, including lost profits, lost savings or other incidental or consequential damages or injury to persons arising out of the use of or inability to use the product, even if the manufacturer has been advised of the possibility of such damages, or for any claim by any other party.
  • Page 8 When using the measuring probes and connecting to or disconnecting them from the measuring instrument do not use force and do not pull on the cable. The measuring instrument, connecting cable and measuring probes must not be used or stored in aggressive or air containing solvents.
  • Page 9 user are governed by the individual circumstances and experiences and knowledge gained in the course of his professional practice. The measuring instrument meets the stronger demands laid down in class B of the pertinent regulations for interference emission and may, therefore, be used also in living areas. The measuring instrument and its standard and optional accessory must only be used as de- scribed in this manual.

  • Page 10: Description Of Hydromette M 4050

    GANN HYDROMETTE M 4050 The HYDROMETTE M 4050 is a microprocessor operated instrument for measurement of wood mois- ture, structural moisture, air humidity and temperature. It is designed for storage of these measure- ments and for statistic evaluation according to medium value, highest and lowest reading and for stan- dard deviation.
  • Page 11 RF-T 28, RF-T 31, RF-T 32 and RF-T 36 can be used with the Hy- dromette M 4050. For temperature measurement in solid materials, liquids, air and flue gas a wide range of PT 100 tem- perature probes in 4-conductor design are available.

  • Page 12: Technical Specifications

    Technical Specifications Readout: 4-line LCD matrix readout Resolution: 0.1 % / 0.1 digit Response time: < 2 sec. Meter adjustment: fully automatic adjustment Admissible ambient conditions for storing: 5 to 40 °C, temporarily -10 to 60 °C not condensing Admissible ambient 0 to 50 °C, temporarily -10 to 60 °C not conditions for op- eration: condensing...

  • Page 13: Measuring Ranges

    Measuring Ranges Wood Moisture: between 5 and 100 % m.c. with ram-in electrode M 18 and drive-in electrode M 20, between 40 and 200 % m.c. with live electrode MH 34, 5 to 30 % m.c. if used in the manufacture of laminated beams ac- cording to DIN 1052 using code No.

  • Page 14: Power Supply

    Measuring Ranges Air Temperature: 5 to 98 % R.H. using live electrodes RF-T 28, RF-T 31, RF-T 32 and RF-T 36. Temperature: -30 to 170 °C depending on PT temperature probe used or 0 to 170 °C with infrared temperature probe IR 40. Battery Check If battery voltage drops below 7.5 V, »WARNING - BATTERY VOLTAGE TOO LOW«...

  • Page 15: Connecting Sockets

    For measurement of wood moisture, structural moisture, air humidity or temperature, all measuring electrodes of the GANN HYDROMETTE program can be used. The use of the power supply unit is recommended for lengthy data transmittals to a printer or PC.

  • Page 16: Function Of Keys

    Function of the keys ON/OFF Key - Upon pressing this key the main menu appears. At the position of the blinking cursor code number of the material to be measured ensuring automatic species correction of the readings is to be entered. Numerical Keys - These keys serve for all numerical inputs such as code numbers, the value for wood temperature compensation or the number of the series of measurements...
  • Page 17 Plus Key - This key serves for forward browsing in the register of materials in alphabetical sequence and for forward browsing in the register of charge numbers and the numbers of individual readings for viewing of stored readings. Arrow Down Key - This key serves to move to the next entry position. Arrow Up Key - This key serves to return to the previous entry position.

  • Page 18: Setup Menu

    Setting the Instrument to Work Setup Menu The setup menu is called up with the meter switched off and holding the »0« key depressed while briefly depressing the »ON/OFF« key. This is only necessary if the inputs for date and time and the baud rate have to be changed or if all data memorized shall be deleted using the selftest function of the meter.

  • Page 19: Language Menu

    Language Menu [ * ] The HYDROMETTE M 4050 is available with software in different languages. The asterisk in the above menu indicates the language provided for the respective meter.

  • Page 20: Date/Time Menu

    Date / Time Menu To set the date and the time the Setup Menu must be brought up. To do so, with the meter switched off, hold down the »0« key while pressing the »ON/OFF« key. On the Setup Menu place the cursor in the line »Date / Time« by pressing the »ARROW« key and ac- knowledge this selection by pressing the »ENTER«...

  • Page 21: Main Menu

    Main Menu Upon pressing the key the Main Menu appears, e.g.: 385 : Concr_B25 Tmes Tcmp Batch No. Sample No. The »Main Menu« is used for measurement of wood moisture, structural moisture, air relative humidity, temperature and of the dew point. It further serves for entering the kind of material to be measured and in case of wood moisture measurement for entering the temperature value for automatic correction of he reading.
  • Page 22 The code numbers of the materials to be measured can be found at the end of this manual. Code numbers entered by means of the »Numerical« keys have to be acknowledged by pressing the »EN- TER« key. The built-in alphabetical directory permits by forward or return browsing search and entry of the mate- rial to be measured without entering its respective code number.
  • Page 23 If the measurement is to be memorized for later print-out or for transfer into a PC, the number of the batch under which the reading is to be stored, must be entered in the third line of the menu. Numbers from 1 to 30 may be entered after first placing the cursor in the third line of the menu via the »AR- ROW«...

  • Page 24: Statistics Menu

    Statistics Menu The Statistics Menu offers a review of the scatter of the stored individual readings. Listed by series number, the number of readings stored, their minimum ( MIN ) and maximum ( MAX ) value as well as the average value ( MEAN ) of all readings stored under the batch number in line 1 and the standard deviation ( STD ) are displayed.

  • Page 25: Menu For Special Functions

    »DIALOG« (optional accessory) must now be initiated at the PC. It should be noted that the baud rate of the PC is also adjusted on the Hydromette M 4050. On deliv- ery, the meter is adjusted to a transmittal rate of 4800 baud.

  • Page 26: Printer Menu

    In the lower line, the reference No. of the series of measurements that shall be erased can be entered. The input has to be confirmed by pressing the »ENTER« key. To prevent erroneous erasure, the »EN- TER« key has to be pressed twice. The erasure order can be cancelled by pressing the »MENU« key instead.
  • Page 27 For printing out a single series of measurement, place the cursor in the first line using the »ARROW« keys, enter the number of the series to be printed and confirm by pressing the »ENTER« key. If only a printout of the momentarily displayed series is desired, just press the »ENTER« key. If all memorized readings are to be printed, place the cursor in the second line and confirm by pressing the »ENTER«...

  • Page 28: Specimen Of Printout

    Specimen Printout of Memorized Readings GANN HYDROMETTE M 4050 Batch No.: 18 Total samples: Minimum: 47.4 Maximum: 64.6 Mean: 58.8 Standard deviation: 10.8 Material Code Moisture Tmes Tcmp Date Time CONCR_B15 1.2 % 26.10.96 10.12 CONCR_B15 1.4 % 26.10.96 10.14 CONR_B25CM 386 0.4 %...
  • Page 29 The specimen printout overleaf has been composed at random. It shall give the user only an idea of the form of such a printout and the data it may contain. Needless to say that it would make no sense to choose a statistic evaluation of readings obtained from different kind of materials as shown in the specimen printout.

  • Page 30: Baudrate Menu

    Baudrate Menu To select the baudrate (speed of transmittal) of the serial interface, the cursor must be placed in the third line (SIO BAUDRATE) of the Setup Menu and confirmed by pressing the »ENTER« key. The dis- play shows the following Baudrate Menu: 9600 4800 2400...

  • Page 31: Selftest

    Instrument Selftest To test the performance of the instrument, the cursor must be placed in the second line of the Setup Menu and confirmed by pressing the »ENTER« key. Because the data base will be totally erased dur- ing this test, the following warning appears in the display: * * * * * * Batch memory will be...

  • Page 32: Instructions For Wood Moisture Measurement

    Instructions for Wood Moisture Measurement using measuring electrodes M 18, M 20, M 20-OF 15 and M 20-HW Connect measuring electrode to the BNC socket of the meter by means of the measuring cable MK 8 usually supplied with the meter. Then switch on the meter by pressing key »ON/OFF«.
  • Page 33 Memorizing Readings For storing readings, 3,000 memory positions are available which are divided into 30 series of meas- urement with 100 individual positions. First the batch No. must be defined in the third line of the basic menu. The reference number of the individual memory position needs not be defined unless the read- ing shall be stored under another position than displayed in the fourth line of the menu.
  • Page 34 As generally known, the accuracy of electrical moisture meters is affected by different electrical prop- erties of the various species of wood. Therefore, individual calibration curves of a great number of wood species have been stored in the software of the Hydromette M 4050 to ensure maximum accu- racy of readings.

  • Page 35: Handling Of Measuring Electrodes For Resistance Measurement

    As the electrical resistance is greater across the grain than parallel to the grain, too high a reading will be obtained if the electrode pins of GANN meters are applied parallel to the grain. The effect can be neglected at readings below 10 % m.c., whereas around 20 % m.c. the meter will read about 2 % m.c.
  • Page 36 Any change in meter readings taken with insulated pins at different penetration depths clearly reflect an actual change in moisture content representing the existing moisture gradient. Drive-in Electrode M 20 Drive the electrode into the wood with the needles across the grain (the electrode body is made of im- pact-resistant plastic).
  • Page 37 Surface Electrodes M 20-OF 15 Surface measurements should only be taken when the wood moisture content is below 30% m.c. For surface measurements on already machined stock or for veneer measurements, the two hexagon cap nuts have to be unscrewed and replaced with the surface measuring caps. For measurement, the two contact pads have to be pressed across the grain onto the stock to be measured or onto the veneer.
  • Page 38 When the M 18 electrode is supplied with the meter, 10 spare pins 40 mm and 60 mm long (without insulated shank) are included in the delivery. They are suitable for measuring wood up to 120 mm and 180 mm thick respectively. For testing timber with higher shell m.c. than core m.c., e.g.

  • Page 39: General Information On Wood Moisture Measurement

    General Information on Wood Moisture Measurement The measuring principle of the most GANN Hydromette moisture meters is based on the electrical re- sistance or conductivity measuring method well known for many years. This method is based on the fact that the electrical resistance is dictated to a large extent by the wood moisture content. The con- ductivity of bone-dry timber is very poor and its resistance very high so that no current worth mention- ing can flow.
  • Page 40 Effects of Wood Preservers Treatment of wood with organic preservers or impregnating agents has, in general, little effect on the meter readings. Treatment with preservatives containing salts or other inorganic constituents that change the conductivity of wood, however, has a great effect on the accuracy of the readings and as it is erratic, a suitable table correction cannot be provided.
  • Page 41 Static Electricity At wood moisture contents below 10 %, circumstances such as low air relative humidity, friction during timber handling or highly insulated surroundings may cause static electricity of very high voltages. The operator too may contribute, e.g. by his clothing or shoes made of man-made fibre, to build up a static charge.
  • Page 42 Wood Moisture Equilibrium Air Temperature in °C 10° 15° 20° 25° 30° Air relative Humidity Wood Moisture Content 20 % 4.7 % 4.7 % 4.6 % 4.4 % 4.3 % 30 % 6.3 % 6.2 % 6.1 % 6.0 % 5.9 % 40 % 7.9 %...

  • Page 43: Handling Of Active Electrode Mh 34

    Instructions for Use of the Active Electrode MH 34 Connect electrode to the meter on the 7-pin socket. Press or cautiously drive the pins of the electrode into the wood to be measured up to the cap nuts - both cap nuts must be in touch with the wood. Switch on meter and enter code No.

  • Page 44: Monitoring Kiln Drying Timber

    Monitoring Kiln Drying Timber The HYDROMETTE M 4050 allows continual control and supervision of wood moisture content, equi- librium moisture (EMC) and drying temperature inside the closed drying kiln. The portable meter can be used to supervise any number of dry kilns, while the measuring station equipment is separately re- quired for each kiln.
  • Page 45 Warning The measuring instrument must not be used inside timber dry kilns because of the high temperatures and the particular kiln atmosphere frequently contaminated by exudations from the timber. For arrangement of the wood moisture and equilibrium moisture measuring points in the dry kiln, pro- ceed as described hereinafter.
  • Page 47 The wall connector for the EMC probe is best mounted near the existing dry and wet bulb thermometer or hygrometer. The probe should lie directly in the air flow, but not close to the spraying system. It should be protected against drip water by an aluminium cover as shown in Fig.
  • Page 48 Inside the kiln, cables should be fixed direct to the kiln wall by means of the cable strings included in the delivery. They must not be laid in conduits, unless they are laid in dry kilns made of wooden pan- els.
  • Page 49 In addition to MC and EMC measuring points also a temperature measuring point can be installed and connected to the measuring point selector switch for taking readings with the Hydromette M 4050. It should preferably be placed close to the EMC measuring point. The temperature probe is supplied in standard design with a connection cable 10 m long and a fastening bracket.
  • Page 50 Final Remarks The meaning of the term »wood moisture« is obvious and requires no explanation, except perhaps that the moisture percentage always refers to the dry weight. »Wood equilibrium moisture« (EMC), however, a factor of the greatest importance in effective dry- ing, is not always clearly understood.

  • Page 53: Instructions For Structural Moisture Measurement

    Instructions for Structural Moisture Measurement According to the resistance principle using measuring electrodes M 6, M 20 and M 21 Connect measuring electrode to the BNC socket of the meter by means of the measuring cable MK 8 usually supplied with the meter and stick it into the material to be measured. Then switch on the meter by pressing key »ON/OFF«.
  • Page 54 Scanning Function Using the Resistance Measuring Method If only a indication of the moisture condition, without conversion into percentage readings, of any ma- terial not listed in the annexed table is required, the meter can be switched over to the scanning mode by entering the code No.
  • Page 55 Testing Set Building Materials On measurement of set inorganic building materials the reading is displayed directly in percent of dry weight or, depending on the entered code No., in percent CM after pressing the key »M«. For meas- urement of soft building materials such as plaster the stick-in electrode M 20 should be used, whereas for measurement of cement flooring and concrete the special electrode M 6 or M 21 in conjunction with contact paste are to be used.

  • Page 56: Handling Of Measuring Electrodes For Resistance Measurement

    Drive-in Electrode M 20 For penetration measurements, up to a depth of 70 mm, on soft, set building materials (gypsum, plas- ter, etc.), drive electrode pins into the material to be tested (the electrode body is of impact resistant plastic). Take care that both pins of the electrode are driven only into the material to be tested. When withdrawing the electrode, the pins can be loosened by slight sideways rocking movements.
  • Page 57 Stick-in Electrode M 6 The two electrodes exclusively designed for moisture checks on set building materials are pressed, at approx. 10 cm apart, into the material to be tested. Both electrodes have to be inserted into the same type of building material. Also, the section to be measured must be coherent and not be crossed by another material.
  • Page 58 Stick-in Electrodes M 6-150/250 The very thin electrode pins are specially designed for testing building or insulating materials for mois- ture content, if the pin holes shall be kept as small as possible. The two 2 mm dia. pins, made of duc- tile, high-grade steel, can, for example, be sticked approx.
  • Page 59 Drill two 8 mm or 10 mm dia. blind holes approx. 10 cm apart (the section to be measured must be co- herent and consist of the same material). It is very important that a sharp drill is used at low speed. Where a lot of heat is generated in the hole, it is necessary to wait at least 10 minutes before introducing the electrodes or contact paste.
  • Page 60 The surface of the material to be measured must not be smeared with the contact paste as the latter has a high conductivity. When using the M 6 electrodes, it is advisable for an appropriate amount of the paste to be rolled into a thin strand and pressed into the hole with the reverse end of the drill. It is possible to keep the contact paste mouldable by adding normal tap water.
  • Page 61 Test Standard for Structural Moisture Measuring Section The optionally available test standard (Ref. No.6071) permits the user to check proper function of the structural moisture measuring section of the meter as well as of the connecting cable MK 8 and of the measuring electrodes M 6 and M 20 at any time.

  • Page 62: Table Of Equilibrium Moisture Values

    Equilibrium Moisture Values in Percents of Dry Weight at 20°C and at 20°C and at 20°C and Building Materials 50% R.H. 65% R.H. 90% R.H. approx. approx. approx. Cement flooring (compressed, laid rela- tively dry) 1.7 – 1.8 Cement flooring (not compressed, laid relatively wet) 2.4 –...
  • Page 63 Equilibrium Moisture Content What are generally referred to as equilibrium moisture value relates to an ambient temperature of 20 °C and an ambient air humidity of 65 % R.H. These values are frequently also termed »air dry«. They must not however be confused with the values at which the material can be processed or worked. Before painting or laying a floor, the diffusion capacity of the covering and future ambient conditions in the room must be taken into consideration.
  • Page 64 Air humidity values for Central Europe lie in the range of approx. 45 to 65 % R.H. in summer and approx. 30 to 45 % in winter. A lot of damage occurs in winter, particularly in centrally heated rooms, as a result of these great swings. It is not possible to define universally valid values.
  • Page 65 Equilibrium moisture values The moisture ranges shown in the graphs have the following meaning: Ambient climate % RH Condition of material equalizing range moist White section: equilibrium moisture attained White-black section: equilibrating phase Caution: Floor covering or glues impervious to moisture should not yet been processed Black section:...
  • Page 67 Building or Insulating Materials Not Assignable to One of the Code Nos. Listed in the Table Annexed Some building materials, e.g. brick, sand lime brick, etc., cannot be measured with the usual accuracy due to their varying mineral additives or burning times. This does not however mean that comparative measurements on the same material and on the same site would be of no value.

  • Page 68: Handling Of Active Electrodes

    Instructions For Non-Destructive Measurement of the Moisture Content of Concrete Surfaces Using the Active Electrode MB 35 Connect the electrode to the meter and press the key »ON/OFF». Then enter the code No. 411 (for readings in % of dry weight) or code No. 412 (if readings in % CM are desired) and confirm input by pressing the key »Enter«.
  • Page 69 Test Standard for Active Electrode MB 35 The optionally available test standard (Ref. No.6073) permits the user to check proper function of the active electrode MB 35 together with the meter. To do so, connect the electrode to the meter and press its plastic pads onto the metal disks of the test standard.
  • Page 70 Instructions For Non-Destructive Moisture Measurement of Building Materials Using the Active Electrodes B 50 and B 60 Connect electrode to the meter and press the key »ON/OFF». Then enter the appropriate code No. of the material to be tested (see table attached) and confirm input by pressing the key »Enter«. Put electrode on the material to be tested and push measuring key »M«.
  • Page 71 Scan Mode of Operation For fast and extended location of moisture absorption and moisture distribution, the B 50 and B 60 electrodes can be used in scan mode of operation after entering the code No. 433. The range of indi- cation extends from 0 to 199 digits, but it should be noted that the readings cannot be stored.
  • Page 72 The list below is intended to serve as a guide to the displayed values to be expected in practice and their classification: Wood 25 - 40 digits moist 80 - 140 digits Living area 25 - 40 digits brickwork moist 100 - 150 digits Basement brickwork...
  • Page 73 display an admissible value, increase or, as the case may be, reduce the reading by slightly turning the potentiometer located behind an opening in the upper half of the grey plastic handle of the active electrode by means of a small screwdriver. Measurement Press the measuring key of the moisture meter and bring the electrode ball into contact with the sur- face to be tested.
  • Page 75 Note The references and data concerning permissible or customary moisture proportions in practice con- tained in the Operating Instructions and the general definitions have been taken from the specialist lit- erature. No guarantee of correctness can therefore be given. The conclusions each user may draw for his own purposes from the measurement results are based on the individual circumstances and the knowledge he has gained from his professional activities.

  • Page 76: Air Humidity Measurement

    Instructions for Moisture Measurement in Building Materials on the Basis of the Measurement of the Relative Air Humidity using the active electrodes RF-T 31 and RF-T 36 Prepare bore hole, insert measuring probe and connect it to the measuring instrument. Switch on the meter by pressing the key »ON/OFF«.
  • Page 77 Measurement of the Relative Air Humidity / Water Activity in Building Materials This method is usually used for depth measurements in old buildings (sandstone, rough stone, wet walls with efflorescence, etc.) where measurements based on the resistance measurement method give no reproducible results. For this purpose the active electrode RF-T 31 with special tube lengths of 250 and 500 mm is used.
  • Page 78 For the measurement a blind hole of 16 mm diameter should be drilled down to the required measur- ing depth. It is important to use a sharp drill, with a high number of impacts and low speed. If the hole should heat up strongly it is necessary to wait for temperature equalization (30 - 60 minutes) before taking the measurement.
  • Page 79 Damage to the Sensor The sensor can be rendered irreparable as a result of various mechanical or environmental influences. These include in particular: - direct contact between the sensor and the fingers, - direct contact with solid or adhesive materials or objects, - measurement in atmospheres containing solvents, oil vapours and other high proportions of harmful substances.

  • Page 80: Air Humidity Measurement And Determination Of Dew Point

    Instructions for Air Humidity Measurement and Determination of the Dew Point using the active electrodes RF-T 28, RF-T 31, RF-T 32 and RF-T 36 Air humidity measurement Switch on the meter by pressing the key »ON/OFF«. Connect electrode to the meter socket. Enter code No.
  • Page 81 Technical Specifications Measuring range: 5 to 98 % R.H. for short periods. For continuous or long period measure- ments in the range above 80 % R.H., a special calibration is required for the measuring sensors. Admissible operating temperature -10 °C to 60 °C for short periods, for the electrodes: 0 °C to 50 °C for long periods.
  • Page 82 Damage to the Sensor The sensor can be rendered irreparable as a result of various mechanical or environmental influences. These include in particular: - direct contact between the sensor and the fingers, - direct contact with solid or adhesive materials or objects, - measurement in atmospheres containing solvents, oil vapours and other high proportions of harmful substances.

  • Page 83: Handling Of Air Humidity Probes

    Use of the active electrode RF-T 28 Hold the electrode in the air or fasten it at the desired measurement site and start the measuring proc- ess. For particularly precise measurements, especially below the usual room temperature (abt. 20 °C) or if there are substantial temperature differences between the electrode or meter and their surround- ings, they should be exposed to the ambient atmosphere for approx.
  • Page 84 cleaning liquid and/or blown from inside outwards with compressed air. With the sintered filter inserted, the response time will be considerably prolonged. Use of the active electrode RF-T 31 The sensor RF-T 31 can be supplied with insertion length of 250 or 500 mm and is mainly used for measuring the relative air humidity or the AW value in places difficult of access, in air ducts, in bulk materials or, in combination with a special adapter, in solid substances (e.g.
  • Page 85 Use of the active electrode RF-T 32 The sensor RF-T 32 is available with insertion lengths of 250 and 500 mm and is mainly used for measuring the relative air humidity or the AW value in places difficult of access or in stacks of paper, leather, textile, tobacco, etc.
  • Page 86 Use of the active electrode RF-T 36 The electrode RF-T 36 was developed among other things for semi-stationary (electrode remains at the measuring point - display unit is mobile when in use) air humidity and air temperature measure- ment in interiors, storage bays, etc. Attach the electrode at the measuring location or at the required point and start the measuring proc- ess.

  • Page 88: Calibrating Instructions For Air Humidity Probes

    Test and Calibrating Instructions for the Relative Humidity Circuitry of the Elec- trodes RF-T 28, 31 and 32 Using the Sensorcheck General Comments In general one has to differentiate between a test, a possibly necessary re-calibration and a special calibration for continuous measurement of more than 80 % humidity. Three test and calibrating liquids are available for the ranges of 10 to 50 %, 50 to 90 % and 80 to 98 %.
  • Page 89 Electrode RF-T 28: Carefully pull-off the protective cap. If used, remove the dust cap first. Electrode RF-T 31: Unscrew the sinter filter cap and withdraw it carefully only along the axis of the tube extension. Tilting the sinter filter may cause damage to the moisture sensor.
  • Page 90 Pick an ampoule containing the desired type of test liquid. Hold it vertically and tap it lightly to re- turn all liquid into the lower part of the ampoule. Hold the ampoule tightly and break its neck off at the white marking. Pour all of the liquid in the ampoule onto the fleece in the lower part of the sensorcheck.
  • Page 91 conditioning process. This means exposing the electrode to an average relative humidity of from 45 % to 65 % R.H. for 24 hours. If the measured humidity is too low by more than 5 %, it is suggested to ex- pose the electrode to a high humidity of 70 % to 75 % R.H.

  • Page 92: Instructions For Temperature Measurement

    Operating Instructions for Temperature Measurement Measurement using active electrodes RF-T 28, RF-T 31 and RF-T 32 and RF-T 36 as well as PT 100 temperature probes ET 10, OT 100 etc. Connect temperature probe to the meter socket. Switch on the meter by pressing the key »ON/OFF«. Enter code No.
  • Page 93 General Information About Temperature Measurement A temperature balance must be achieved between the measuring sensor and the object to be meas- ured, for correct readings to be made. This is easy to achieve when measuring liquids in large quanti- ties or large objects with high heat content. One must ensure that the sensor tube and head are not af- fected by another temperature such as ambient air temperature.

  • Page 94: Handling Of The Active Electrodes Rf-T

    Use of the active electrodes RF-T 28, RF-T 31 and RF-T 32 Hold the probe in the air at the measuring location and start the measuring by pressing the measuring key »M«. The electrodes RF-T 28, RF-T 31 and RF-T 32 are only suitable for measuring the air tem- perature (besides of the air humidity) not for temperature measurements on solid material and liquids.

  • Page 95: Handling Of Pt 100 Temperature Probes

    Use of the Surface Temperature Probe OT 100 The OT 100 is a special probe with low mass for measuring surface temperatures. At rough surfaces coat the sensor head with heat conducting paste and press it against the object to be measured.
  • Page 96 Silicone Heat Conducting Paste The heat conducting paste is supplied in packages containing 2 tubes of 30 g each. Its purpose is to improve the transfer of heat between the sensor and the object being measured. Temperature meas- urements with the probes OT 100 and OTW 90 on rough surfaces should generally be carried out in conjunction with heat conducting paste.
  • Page 97 ing drilling to dissipate. Coat sensor tip with heat conducting paste, insert and take the reading. Shal- low holes can be directly filled with heat conducting paste. Depending on the material to be tested, the response time lies between approx. 10 seconds (liquids) and 120 seconds.
  • Page 98 Use of the Immersion and Combustion Gas Temperature Probe TT 40 The immersion probe TT 40 is a special sensor for measuring temperatures in liquids and core tem- peratures in pre-drilled holes as well as in combustion and waste gas of burners. The sensor tube has a length of 480 mm.
  • Page 99 The optionally available test standard (Ref. No.6072) permits the user to check proper function of the PT 100 temperature measuring section of the Hydromette M 4050 but not of the temperature sensors. Connect the test standard to the meter socket. After pressing the »ON/OFF« key, enter code No. 427 and confirm input by pressing the key »Enter«.

  • Page 100: Infra-Red Temperature Measurement

    Temperature Measurement with Active Electrode IR 40 Connect temperature probe IR 40 to the meter socket. Switch on the meter by pressing the key »ON/OFF«. Enter code No. 430 and confirm input by pressing key »Enter«. Press measuring key »M« and read off result in °C in the second line of the menu at »Tmes«. By pressing key »Mem«...
  • Page 101 General Information Concerning Infra-Red Temperature Measurement Tech- nique All bodies with a temperature above the »absolute zero« (= 0 °K or -273 °C) emit infra-red radiation, also known as thermal radiation. The intensity of this thermal radiation serves as an indication of the surface temperature, having regard to the degree of emission.
  • Page 102 After entry of the code No. 430 and confirming the input by pressing the key »Enter«, the reading is displayed in °C or °F at the position »Tmes«. Depending on the temperature variation, the measured value is displayed immediately or within a few seconds. Fluctuations of the last digit (1/10 °C) around ± 0.2 °C are completely normal.
  • Page 103 - measure objects in the immediate vicinity of strongly heat-emitting or cold emitting equipment (interrupt heat/cold radiation), - expose the high-quality measurement device to the influence of strong heat or cold sources (transport in the baggage boot), - expose the measurement device to high atmospheric humidity (condensing), - stretch the connecting cable or excessively twist the spiral cable, - carry out measurements in rapid succession (wait approx.
  • Page 104 A correction between the temperature measurement value and the emission factor requires a knowl- edge of the ambient temperature and the temperature compensation between the measurement sen- sor and the ambient temperature. The correction is calculated according to the following equation: (T display - T ambient) x 100 ________________________________ + T ambient = T measurement object.
  • Page 105 Size of the measurement spot The measurement spot diameter depends on the distance from the sensor and has a size of 8 mm immediately in front of the measurement sensor opening. The measurement spot diameter increases proportionally in a ration of approx. 2.5 : 1 the greater the distance between the measurement sensor and object.
  • Page 106 Measuring electrodes and other accessory Drive-in Electrode M 20 (Ref. No. 3300) for surface and subsurface measurements on wood up to 50 mm thick. Also for testing chipboard, fibreboard and set construction materials (plaster, mortar, etc.), with measuring pins - 16 mm long (Ref. No. 4610), penetration depth 10 mm - 23 mm long (Ref.
  • Page 107 Ram-in Electrode M 18 (Ref. No. 3500) for testing timber up to 180 mm thick, with uninsulated pins, as standard equipment, - 40 mm long (Ref. No. 4640), penetration depth 34 mm - 60 mm long (Ref. No. 4660), penetration depth 54 mm, or optionally with pins with insulated shank - 45 mm long (Ref.
  • Page 108 Stick-in Electrode pins M 20-Bi for measurements in depth of non-apparent materials behind another panel, with insulated shank (only in conjunction with the handle of the electrode M 20) - 200 mm long (Ref. No. 4360) - 300 mm long (Ref. No. 4365). Stick-in Electrodes M 6 (Ref.
  • Page 109 Deep Electrodes M 21-100/250 for deep measurements in set building materials, in conjunction with contact paste and pre-drilled holes - 100 mm long (Ref. No. 3200) - 250 mm long (Ref. No. 3250). Contact Paste (Ref. No. 5400) to ensure good contact between electrode pins and tested building materials.
  • Page 110 Flat Electrode Pins M 6-Bi 200/300 for measurements in insulating material of cement flooring through the edge joint (with insulated shank) for use with the handle of the electrode M 6 - size 10 x 0.8 x 200 mm (Ref. No. 3702) - size 10 x 0.8 x 300 mm (Ref.
  • Page 111 Active electrode MB 35 (Ref.No. 3770) with integrated measuring circuit, designed for surface measure- ment of concrete, in particular prior to coating or gluing. Measuring range: 2 to 8 % m.c. of dry weight according to oven test. Active electrode B 50 (Ref.
  • Page 112 Active electrode B 60 (Ref. No. 3760) with integrated measuring circuit, designed for non-destructive location of moisture concentration in construction materials and moisture distribution in walls, ceilings and floors. It works accord- ing to a patented measuring procedure and generates a concen- trated high frequency field with substantial penetration depth.
  • Page 113 Filter Cap (Ref. No. 3156) of sintered bronze for use with electrode RF-T 28 in dust laden air or at high air speed Special electrode RF-T 36 (Ref. No. 3136) for measurement of air humidity and air temperature, water activity value or equilibrium moisture in rooms, warehouses or solid substances (e.g.
  • Page 114 Bore hole adapter with closing plug, for use with plug-in sensor RF-T 31 for equi- librium moisture measurement in brick-work or building materials. For bore holes up to 150 mm in depth (Ref. No. 5615) For bore holes up to 250 mm in depth (Ref. No. 5625) For bore holes up to 500 mm in depth (Ref.
  • Page 115 Sensor Check Test and calibrating box for Probe RF-T 28 (Ref. No. 5728) Probe RF-T 31 (Ref. No. 5731) Probe RF-T 32 (Ref. No. 5732) Test and Calibrating Fluid for checking and recalibrating all electrodes type RF-T. Package of 5 ampoules of test fluid for sensor check, including absorbing fleece, sufficient for 5 tests or recalibrations.
  • Page 116 Infra-red Surface Temperature Sensor IR 40 (Ref. No. 3150) Contactless temperature measurement from -20 to 199.9 °C, resolution 0.1 °C, emissivity permanently set at 95 %, ratio of measured area to distance 2.5:1 (∅ 45 mm at a distance of 100 mm), sensor length 185 mm x 36 x 33 mm, coiled cable 320/1200 mm.

  • Page 117: Temperature Probes

    Pt 100 Temperature Probes Temperature Probe ET 10 (Ref. No. 3165) Robust stick-in temperature probe for solid and bulk materials and liquids measuring range -50 to 250 °C. Temperature Probe TT 40 (Ref. No. 3180). Robust immersion and combustion gas temperature probe with long sensor tube, measuring range -50 to 350 °C.
  • Page 118 Silicone Heat Conducting Paste (Ref. No. 5500) To improve heat transmission on rough surfaces or if there are contact problems. Unconditionally recommended with temperature probe OT 100. Flexible Temperature Probes with Teflon insulated connection cable, for solid and bulk materials as well as liquids up to 120 °C.
  • Page 119 Carrying Case V (Ref. No. 5085) for storing and transport of the measuring instrument and the standard and optional accessory Measuring Cable MK 8 (Ref. No. 6210) for connection of the electrodes M 6, M 18, M 20, M 20-HW M 20-Bi and M 21 Measuring Cable MK 15 (Ref.
  • Page 120 Test Devices Test Standard (Ref. No. 6070) for checking the wood moisture measuring section of the measuring instrument. Test Standard (Ref. No. 6071) for checking the measuring section for building materials. Test Standard (Ref. No. 6072) for checking the temperature measuring section of the meter. Test Standard (Ref.
  • Page 121 The PC transmission package DIALOG comprises the special cable MK 19 for connecting the HYDROMETTE M 4050 to an IBM compatible PC as well as the neces- sary software for further processing and for printouts The software is supplied both on a 3.5" diskette.
  • Page 122 Power supply unit 12 (Ref. No. 5150) for 220 V/12 V = stabilized To preserve the battery during lengthy data trans- mittals to a PC or a printer. Connection Cable MK 19 (Ref. No. 6900) Special cable for connection of the measuring instrument to an IBM compatible PC.

  • Page 123: Accessory For Monitoring Kiln Drying

    EMC reading are simultaneously shown on the display of the HYDROMETTE M 4050. The selector switch is available for connection of 6 or 10 wood moisture or E.M.C. measuring points and (optional feature) 1 or 2 temperature measuring points: For 6 wood M.C.
  • Page 124 Kiln Temperature Sensor Pt with fastening bracket and connecting cable for measurement of the drying temperature during kiln drying lumber. The end of the cable is prepared for connection to the measuring point se- lector switch. Length of connecting cable 10 m (Ref.
  • Page 125 Drive-in Electrodes without insulation, for wood moisture measurement inside dry kilns, with a penetration depth of - up to 10 mm (Ref. No. 7201) - up to 15 mm (Ref. No. 7202) - up to 25 mm (Ref. No. 7203) - up to 40 mm (Ref.
  • Page 126 English speaking countries. In the software of the Hydromette M 4050 only the chiefly used name of every species of wood has been stored. Therefore, it should be noted that another name may be displayed in the field of the menu following the code No.
  • Page 127 Code Numbers for Measurement of Structural Moisture, Air Humidity and Tem- perature Building materials Measurement according to the resistance method using the measuring electrodes M 6, M 20 and M 21, reading displayed in % of dry weight Building material Menu Indication Code No.
  • Page 128 Building material Menu Indication Code No. Cement flooring with addition - of synthetics C-FLOOR+SY Cement flooring with addition - of bitumen C-FLOOR+BI Cement mortar CEMENT MORTAR Scan function using the resistance - measuring method, reading in - digits (0-80), no percentage - reading RES-DIGIT For display of equivalent readings in % CM as obtained when using the carbide pres-...
  • Page 129 Set building materials Measurement according to the capacity method using the active electrodes B 50 and B 60, reading displayed in % of dry weight Building material Menu Indication Code No. Cement flooring CEM.FL B50 Durament flooring DU.FL B50 Concrete CON.
  • Page 130 Measurement on the basis of the air humidity using the active electrodes RF-T 31 and RF-T 36, display of readings in % of dry weight Building material Menu Indication Code No. Cement flooring / concrete SORP.CF,CO Plaster / Durament flooring SORP.PL,DF Moisture measurement on concrete surfaces using the active electrode MB 35 readings in % of dry weight...
  • Page 131 Temperature measurement using Pt 100 temperature probes in 4-conductor technology or active elec- trodes RF-T 28, RF-T 31, RF-t 32 and RF-T 36 Menu Indication Code No. Display of reading in the field Tmes of the menu RF-T Surface temperature measurement using the active electrode IR 40 IR-PROBE...
  • Page 132 Warranty GANN warrants for six months from date of purchase or one year from date of delivery from his factory whichever period elapses first, to correct by repair or replacement of defective parts free of charge any product defect due to faulty material or poor workmanship. Replacement or repair of any part does not constitute a new warranty period.

  • Page 133: Ec Declaration Of Conformity

    This declaration becomes void if the moisture meters are modified without our approval. Applied harmonized standards in particular: EN 55011/03.91 - DIN VDE 0875-11/07.92 DIN EN 50082-1/03.93 Applied national technical standards and specifications: IEC 1000-4-2/1995 - IEC 1000-4-4/01.95 IEC 801-3/1984 - IEC 65A/77B GANN Mess- u. Regeltechnik GmbH, Stuttgart, Germany...

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