C.A 847
Contents
1. H Humidim tre mat riaux H Materials moisture meter B Materialfeuchtemesser H Misuratore di umidit materiali E Medidor de humedad en materiales Notice de fonctionnement User s manual Bedienungsanleitung Libretto d Istruzioni Manual de Instrucciones Significance of the symbole CAUTION Pease consult the operating instructions before using the device In these operating instrctions failure to follow or carry out instructions preceded by this symbol may result in personal injury or damage to the device and the installations Definition of CAT III This voltage surge category III clamp complies with stringent reliability and availability requirements corresponding to fixed industrial and domestique installations see IEC 664 1 Ed 92 Thank you for purchasing this CA 847 materials moisture meter To obtain the best possible service from your instrument E Read these operating instructions carefully W Comply with the precautions for use PRECAUTIONS FOR USE To prevent the risk of injury always replace the touch prod protection cap after use WARRANTY Our guarantee is applicable unless otherwise stated for twelve months following the date of supply of the equipment extract from our General Sales Conditions available on request English Deutsch Italiano Espanol s ote a ee 22 pio WM t 4 1Procedure 4 2 Measuring precautions 5 C2. take the reading directly from the right hand column opposite the LED which is lit If the percentage is over 23 the top LED will light up indicating that you should press on the red button on the front of the instrument Then read the percentage between 24 and 100 indicated in the left hand column opposite the LED which is lit Since the measurement result depends on the density and nature of the material its value is essentially one of comparison between the dry and moist condition of this material 3 To switch the instrument off simply replace the protective cover 4 If the Low Batt LED stays continuously lit this means the battery should be changed straight away 4 2 Measuring precautions The surface of the material must be dry otherwise the measurement result will be incorrect It is in fact the internal percentage of moisture in the material that we wish to determine 5 CHARACTERISTICS Measurement range 0 to 100 of moisture in the wood or W M E Display 20 LEDS on 2 scales 6 to 23 and 24 to 100 e Accuracy 2 LEDS Battery status low batt LED lights up when the battery power supply is not sufficient to take a correct measurement Power supply 9V battery GLR61 or 6F22 type Size weight 195 x 60 5 x 38 mm 160 g with battery Utilisation environment 0 to 50 C 8096 R H Storage environment 20 to 60 C O to 80 R H without the battery Operating sufficiency 30 hours Saf
3. HARACTERISTICS 6 MAINTENANCE 7 TO ORDER We AA ata 10 8 APPENDIX AAA A 11 1 PRESENTATION The CA847 moisture meter is designed to measure the level of moisture in wood and construction materials such as plaster and roughcast etc The measurement principal is as follows an electric current is passed through the two electrodes in order to measure the impedance variation due to the moisture in the material The instrument immediately translates the measurement into a humidity 96 For wood the instrument gives a direct reading of the level of moisture in the wood expressed as a of H2O between 6 and 100 For other construction materials the instrument determines the wood moisture equivalent WME 2 GENERAL COMMENTS ON MOISTURE IN MATERIALS Moisture meters are generally calibrated for wood which is the construc tion material with the best known moisture levels over and above which the material starts to deteriorate In fact under a level of around 16 wood is considered dry and will not deteriorate no rot retention of mechanical qualities etc Between around 16 and 19 the acceptable amount of moisture is reached and signs of deterioration may start to appear Finally over and above 20 the wood is considered to be damp and signs of deterioration will obviously appear in time unless measures are taken to reduce the level of moisture For other materials a wood equivalence is used by establishing the WME wood
4. ety Cat Ill 24 V AC DC as per IEC 664 1 Ed 92 Electromagnetic compatibility Emission as per EN 50081 Ed 1992 Immunity as per EN 50082 Ed 1992 6 MAINTENANCE Only use specified spare parts for maintenance purposes The manufacturer cannot accept any responsibility for accidents occurring following repairs carried out outside its after sales department or approved maintenance network 6 1 Changing the battery The battery must be replaced as soon as the low batt LED lights up Remove the yellow protective casing without removing the prod protection cover the instrument remains switched off Unscrew then remove by pushing the battery lid backwards Replace the old battery with a 9V battery 6LR61 or 6LF22 type 6 2 Cleaning the casing Clean the unit with a cloth and a little soapy water Clean off with a damp cloth AN Do not use solvents 6 3 Metrological Checks A It is essential that all measuring instruments are regularly calibrated For checking and calibration of your instrument please contact our accredited laboratories list on request or the Chauvin Arnoux subsidiary or Agent in your country 6 4 Repair For all repairs under guarantee or outside guarantee please return the device to your distributor 7 TO ORDER GA BIT een P01 1563 02Z Supplied with a shockproof cover a 9V battery and these operating instructions Spare parts ON batte ios o od CLE P01 1007 32 8 APPENDIX
5. moisture equivalent which is the level of moisture reached by wood equal to that of the material being measured Interpretation of the measurement is facilitated since the threshold per centage for transition from a dry to a humid condition is the same between 16 and 2096 3 DESCRIPTION See the Appendix in Chapter 8 at the end of operating instructions measurement prods to be inserted into the material protective cover protects the prods and switches the instrument off on light which shows when the instrument is on or off low batt light which indicates when the battery is low 20 moisture level indicator lamps scale graduated as a of moisture in wood or W M E associated with a coloured barchart that shows the difference between a dry and humid condition lamp indicating a level of gt 23 when indicator lamp 7 is lit you should press the red button to obtain a correct reading oUPOD lt 4 USE 4 1 Procedure 1 Remove the protective cover from the prods Then switches the instrument on you will notice the on indicator lamp lights up Note that the measuring prods may cause injury if not handled with caution 2 Insert the prods firmly into the material and read the measurement result For wood insert the prods so that the current circulates parallel to the wood fibres If the material moisture level is less than 6 none of the LEDs light up If the percentage is between 6 and 23
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