MMD8P - General Tools And Instruments
Contents
1. Measurement Screen Display Option 1 e The current relative humidity RH percentage at lower left e The current ambient temperature TA at lower right SELECT A DISPLAY The MMD8P offers four options for displaying moisture level measurements with or without the environmental parameters temperature and RH that affect them Instead of the Full Measurement Screen above you can choose to show moisture measurements on an analog bar graph like the following To select the Analog Bar Graph Screen press the MODE button with gya Apitong Q the Full Measurement Screen on the OLED Note on the screen at right that the digital readout of moisture level has been replaced by F Hold an analog reading corresponding to the width of the white rectangle fi at left The linear scale below the rectangle indicates values from 5 3 a gm a mag mu mE 5EEN to 40 0 WME from left to right eR TAY Sb Bh Also note the addition of the small letters L and H at left and right respectively L indicates a measured moisture level below A typical Analog Bar Graph 5 3 WME and H indicates a measured moisture level above Screen Display Option 2 40 WME Finally note the presence of the word Hold in the middle of the display Hold indicates that the currently displayed level represents a held measurement To hold a measurement briefly press the button To release the hold unfreeze the display briefly press the button again Note A held reading on the Ful2. FOR TEMPERATURE The MMD8P allows you to compensate moisture measurements for the effect of ambient temperature This feature greatly improves the accuracy of readings To select and set the level of temperature compensation call up the Aana A screen shown below To do so press the MODE button until you see the View Delete Mem Screen and then press the MODE once more RRC E The default temperature for which all MMD8P measurements are compensated is 70 F Using the lt and pads of the joystick you can change the compensation temperature to any value from 0 to 255 F divisible by 5 In other words each press of the lt 4 or gt pad increases or decreases the compensation temperature The Temperature by 5 F Typically you adjust the compensation temperature until it Compensation Selection matches the ambient temperature Screen When you have finished adjusting the compensation temperature press the MR MC button which is directly below Save amp Exit on the above screen To pass through the Temperature Compensation Selection Screen without making a change press the MODE button which is directly below Exit on the above screen Whether you use the default compensation temperature of 70 F or another value of your choosing you can read the actual value applied on the three Display Option screens that show ambient temperature To display the compensation temperature TC instead of the ambient temperature TA pres
3. SWITCHES TO TEMPERATURE COMPENSATION SET MODE 7 PRESSED AGAIN SWITCHES TO DISPLAY OF REMAINING BATTERY CHARGE 8 PRESSED AGAIN SWITCHES BACK TO INITIAL DIGITAL DISPLAY PRESSED IN MEMORY STORE MEMORY VIEW AND TEMPERATURE COMPENSATION SET MODES ADVANCES TO NEXT DISPLAY MODE 5 PRESSED IN TEMPERATURE COMPENSATION MODE SAVES SELECTED TEMPERATURE JOYSTICK BATTERY COMPARTMENT ON BACK OF METER SETUP INSTRUCTIONS INSTALL BATTERY To open the battery compartment turn the meter over and lift the tab on the bottom of the battery compartment cover Remove the cover and set it aside Then plug the included 9V battery into the wired socket inside the compartment The terminals of the battery and the socket mate in only one way with the smaller male terminal plugging into the larger female terminal Close the battery compartment by replacing its cover and snapping it shut ADVANCED SETUP Before using the meter General recommends that you adjust five operating and housekeeping parameters to your preferences They are 1 The Auto Power Off APO time out trigger point and whether the function is enabled 2 The low threshold of the moisture level alarm beeper and whether the alarm is enabled 3 Whether the meter s memory is activated and if so the number of moisture measurement records to provide space for 4 Whether records are stored manually or automatically If automatic storage is
4. chosen how often readings are stored 5 The temperature measurement unit F or C It is not necessary to enter Advanced Setup mode if you are willing to use the default settings for each of the above five parameters The default settings are 1 APO ON with a 2 minute time out trigger point 2 minutes of inactivity at the front panel buttons 2 Moisture alarm OFF 3 Memory storage OFF 4 Memory timer MANUAL 5 Temperature unit F To enter Advanced Setup mode power on the meter in a special way by pressing and holding the MODE button as you press and hold the button The following setup screen will appear showing the default settings On the right side of the top APO line 2Mins will initially be flashing SETTING APO 2Mins Alarm OFF Store Mem OFF Mem Timer MANUAL Temp Unit F EXIT To change any of these operating and housekeeping settings A Navigate to its line by pressing the A and W pads of the joystick lt button When a setting is ready to be changed it will begin to flash B Use the lt and or pads to select a new value C Press the MODE button to save the selection or selections if you change more than one setting exit Advanced Setup Mode and enter real time measurement mode Following are the setting options for each of the five parameters 1 APO OFF or 1 to 99 minutes of front panel inactivity in 1 minute increments Be aware that by disabling the A
5. that the record is available for storage If you have enabled memory storage the Store Mem Screen shown above is added to the sequence of screens made available by pressing the MODE button It follows the Moisture Hygrometer Screen in the sequence There are two different procedures for storing moisture measurement records depending on whether you choose manual or automatic storage To store a record in manual mode 1 Make a measurement and view it on any of the four display screens 2 If necessary press the MODE button until you see the Moisture Hygrometer Screen 3 Press the MODE button once to display the Store Mem Screen The terms Record and Exit on the bottom line will both flash 4 Assuming that you have enabled manual storage press the MR MC button directly under Record once This stores the record in memory Note that pressing the button increments the record number counter at the upper right of the OLED tig gtupgkead 10 94WME ERA e ORK Saa a d GF EMP seord Exit ae emp 39 9 F A typical moisture measurement record ready for storage 5 To exit record storage mode and advance to the View Delete Mem screen press the MODE button directly under Exit To store one or more records in automatic mode 1 Make a measurement and view it on any of the four display screens 2 If necessary press the MODE button until you see the Moisture Hygrometer Screen 3 Press the MODE button once to display the S
6. GENERAL PRECISION MULTI SPECIES WOOD MOISTURE METER USER S MANUAL MMDSsP Please read this manual carefully and thoroughly before using this product TABLE OF CONTENTS introduction 252536 tects ce Ga RE eda eae ea ees 2 Key Features rrini ourien eesti oe aad foie toa atte 2 3 What s in the Package 0 00 ccc cece c cece e eens 3 Product OVOrVIOW aces eset ee eter ee eee Pee eae AN A 3 Setup Instructions 1 0 0 0 cece cece eee eee 4 5 Install Battery iiss ccd eet aneian ead deta tied vend Reds 4 Advanced Setup iii c cetrern Sty cates bei tae 4 5 Operating Instructions 00 cece cee cece eens 5 10 Select a DISpla V irinenn sacar tases coos as Siesta 6 7 Select a Species 00 c cece cece eens 7 8 Making Measurements 0cc cece cece cence ee eeaes 8 Storing RECOrdS cc cece cece eee eee 8 9 Recalling and Deleting Records 00 cece eee eeaes 9 Compensating for Temperature 0000e cence 9 10 Specifications 0 eee eee ees 10 11 Operating amp Maintenance TipS 0c cece eee eee eee 11 Warranty Information 00 00 c cece cece eee eee 11 12 Return for Repair Policy 0 0 cc cee eee eee eens 12 INTRODUCTION Thank you for purchasing General Tools amp Instruments MMD8P Precision Multi Species Wood Moisture Meter Please read this user s manual carefully and thoroughly before using the meter The MMD8P is tailored for use in woodwo
7. PO function you run the risk of discharging the meter s battery if you forget to power the meter off each time you finish using it 2 Alarm OFF or a repeating beep for any moisture reading above a threshold of 0 1 to 99 9 WME in increments of 0 1 3 Store Mem OFF or 1 to 100 memory records in 1 record increments As a practical matter there is no reason not to enable memory storage and no reason not to select the maximum memory capacity available 100 records 4 Mem Timer MANUAL on screen records can be stored manually by pressing the MR MC button or automatically at a sampling rate from once per second to once every 99 seconds in 1 second increments During setup these automatic storage options appear on screen as 1s AUTO 2s AUTO etc through 99s AUTO 5 Temp Unit F or C Advanced Setup Hints e Pressing and holding the lt or gt pad for more than 5 seconds increases the increment of change from one digit to 10 or more Doing so can make it faster to make a change to a new value far from an old one e You can use the lt and gt pads to wrap around the low or high end of a setting range making it faster to dial up a new value for selection For example pressing the lt pad four times with the APO trigger showing 2Mins would produce the following displays in turn 1Min OFF 99Mins and 98Mins e When pressing the lt and gt pads be sure not to apply any vertical force If the joystick de
8. able time out trigger e Separate indications of remaining battery charge and low battery charge e 1 year limited warranty WHAT S IN THE PACKAGE The MMD8P comes in a custom hard carrying case inside a white box along with a 9V battery and this user s manual PRODUCT OVERVIEW The figure shows all of the controls indicators and physical features on the front top and back of the MMD8P Familiarize yourself with their positions and functions before moving on to the Setup Instructions and Operating Instructions CALIBRATION PIN COVER CHECK HOLES TEMPERATURE TEST PINS amp RH SENSORS gozed ERT m s e OLED DISPLAY lt jUEE MODE SELECT MULTI FUNCTION BUTTON IN REAL TIME MEASUREMENT MODE WITH INITIAL DIGITAL DISPLAY 1 PRESSED ONCE SWITCHES TO ANALOG BAR GRAPH DISPLAY 2 PRESSED AGAIN SWITCHES TO FULL SCREEN DISPLAY OF MOISTURE LEVEL READING 3 PRESSED AGAIN SWITCHES TO DISPLAY OF MOISTURE LEVEL READING ABOVE AMBIENT MR MC SELECT MR MC MULTI FUNCTION lw BUTTON 1 PRESS AND HOLD TO POWER METER ON amp OFF 2 PRESS BRIEFLY TO HOLD READING 3 PRESSED IN MEMORY STORE MODE STORES DISPLAYED RECORD RH AND TEMPERATURE READINGS 4 PRESSED IN MEMORY VIEW MODE 4 PRESSED AGAIN SWITCHES TO MEMORY DELETES DISPLAYED RECORD STORE MODE 5 PRESSED AGAIN SWITCHES TO MEMORY VIEW MODE 6 PRESSED AGAIN
9. arp points Read the moisture level on any of the four screens described above as Display Options 1 through 4 General recommends that you check the calibration of the MMD8P prior to every measurement session To check the calibration 1 Select the Douglas Fir Species Code No 1 2 Make sure that the Compensation Temperature is set to the default value of 70 F see page 9 3 Remove the pin cover turn it over and insert the test pins into the holes on the top of the cap A reading of 15 9 3 WME indicates a properly calibrated meter STORING RECORDS If you enabled the meter s memory as part of the Advanced Setup procedure you can store and recall up to 100 moisture measurement records During Advanced Setup you can also choose how much memory to allocate for record storage As mentioned earlier as a practical matter there is no reason not to enable memory storage and no reason not to select the maximum memory capacity available 100 records Each moisture measurement record see example below right contains the following information e The record number 7 out of 100 available locations on the top line e The moisture level measurement itself MoistureRead in the example below e The number and name of the wood species tested No 3 SPF e The ambient temperature and relative humidity at the time Mem 7 100 of measurement 59 9 F and 60 0 RH Stare ia e Any temperature compensation applied 0 0 F e An indication Record at lower left
10. as the Temperature Compensation Selection Screen indicates a charge of 33 or less it s time to replace the 9V battery that powers the MMD8P although measurements will remain valid for several hours after the icon first appears To replace the battery follow the Setup Instructions on p 4 This equipment has been tested and found to comply with the limits for Class B digital devices pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio or television reception which can be determined by turning the equipment off and on The user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired
11. ental special consequential or punitive damages or for any cost attorneys fees expenses or losses alleged to be a consequence of any damage due to failure of or defect in any product including but not limited to any claims for loss of profits Register now at www generaltools com ProductRegistry to receive a 60 day extension to your warranty RETURN FOR REPAIR POLICY Every effort has been made to provide you with a reliable product of superior quality However in the event your instrument requires repair please contact our Customer Service to obtain an RGA Return Goods Authorization number before forwarding the unit via prepaid freight to the attention of our Service Center at this address General Tools amp Instruments 80 White Street New York NY 10013 212 431 6100 Remember to include a copy of your proof of purchase your return address and your phone number and or e mail address Specialty Tools amp Instruments GENERAL TOOLS amp INSTRUMENTS 80 White Street New York NY 10013 3567 PHONE 212 431 6100 FAX 212 431 6499 TOLL FREE 800 697 8665 e mail sales generaltools com www generaltools com MMD8P User s Manual Specifications subject to change without notice 2013 GENERAL TOOLS amp INSTRUMENTS NOTICE WE ARE NOT RESPONSIBLE FOR TYPOGRAPHICAL ERRORS MAN MMD8P 10 29 13
12. hrough record numbers However as in Setup mode you can use the lt and pads to wrap around the low and high ends of the range of stored record numbers To delete an individual record press the MR MC button which is directly below Delete on the View Delete Mem Screen with the record on screen The next screen will ask Are You Sure To Delete with the options Yes and Exit flashing on the bottom line Pressing the MR MC button to answer Yes takes you to another screen that asks All Delete and the options No and Yes flashing on the bottom line Pressing the MR MC button to answer No deletes only the selected record Note that doing so decrements decreases by one the number of stored records the number following the slash at upper right Deleting a single record does not change the number before the slash However that number now represents a different record the one you saved just before the record that you just deleted Pressing the MODE button to answer Yes to All Delete deletes all stored records and calls up a special View Delete Mem Screen with 1 no Record No Record Count display in the upper right corner 2 only the term Exit flashing in the lower right corner and 3 the message File not found in the middle of the screen Pressing the MODE button to Exit the View Delete Mem Screen opens the Temperature Compensation Adjustment Screen see next section COMPENSATING
13. l Measurement Screen is indicated by the flashing of the sign between the measured value and WME The third of the MMD8P s four measurement display options is the Large Numeric Screen shown at lower right To select the Large Numeric Screen press the MODE button with the Analog Bar Graph Screen on the OLED On this screen note the absence of any indications other than measured moisture level and remaining battery charge This display option is most useful for reading moisture levels from a distance As on the Full Measurement Screen held readings are indicated by the flashing of the sign to the right of the measured moisture value A typical Large Numeric Screen Display Option 3 The fourth and final measurement display option is the Moisture Hygrometer Screen shown at right To select the Moisture Hygrometer Screen press the MODE button with the Large Numeric Screen on the OLED On this screen note the absence of the wood species number and name and the I absence of the remaining battery charge icon As on the Full 60 0 F Measurement Screen and Large Numeric Screen held readings 4 are indicated by the flashing of the sign to the right of the A typical Moisture measured moisture value Hygrometer Screen Note When the MMD8P is powered on following a manual or Display Option 4 automatic APO triggered shutdown it will automatically resume operation with the last selected measurement display optio
14. n SELECT A SPECIES The MMD8P incorporates industry standard moisture resistance curves for 48 species of wood To select a particular species 1 Choose either the use the Full Measurement Screen or the Analog Bar Graph Screen because the species number and name are not shown on the Large Numeric Screen or Moisture Hygrometer Screen and 2 Use the A and W pads of the joystick to scroll through the species options until the number and name of the desired species appears at the top of the screen The following table shows the Code Nos and names of each of the 48 wood species whose moisture resistance curves are stored in the meter Species Code Chart 5 Aspen o O o S MerantarkRed e Basswood a2 oa SOSS o e S o e Note Unlike in Setup mode pressing and holding the lt or gt pad of the joystick will not increase the increment of change in Code Nos However as in Setup mode you can use the lt and gt pads to wrap around the low or high end of the code range Specifically pressing the lt pad with Code No 1 selected will change the selected code to Code No 48 and pressing the pad with Code No 48 selected will change the selected code to Code No 1 MAKING MEASUREMENTS To measure the surface moisture level of a wood sample first select its species using the instructions in the previous section Then carefully remove the cover protecting the test pins at the top of the meter Take care not to stab yourself with the sh
15. operation WARNING Any changes of modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Remove the battery when storing the meter for an extended period of time Never drop or disassemble the meter or immerse it in water WARRANTY INFORMATION General Tools amp Instruments General s MMD8P Precision Multi Species Wood Moisture Meter is warranted to the original purchaser to be free from defects in material and workmanship for a period of one year Subject to certain restrictions General will repair or replace this instrument if after examination the company determines it to be defective in material or workmanship The warranty period begins on the date of purchase You are encouraged to register your product online General will extend your warranty an additional 60 days if you register at www generaltools com ProductRegistry This warranty does not apply to damages that General determines to be from an attempted repair by non authorized personnel or misuse alterations normal wear and tear or accidental damage The defective unit must be returned to General Tools amp Instruments or to a General authorized service center freight prepaid and insured 11 Acceptance of the exclusive repair and replacement remedies described herein is a condition of the contract for purchase of this product In no event shall General be liable for any incid
16. rking and lumber purchasing Examples include e Measuring the moisture content of wood before painting wallpapering sealing treating or joining e Selecting dry lumber The meter infers the moisture level of a piece of wood by measuring the electrical resistance it presents between the meter s test pins The electrical resistance of any material can be used as a proxy for its moisture level The wetter a material the lower its resistance The measurements made by the MMD8P mostly represent surface moisture content because 1 Moisture close to the surface has a greater effect on a reading than moisture deep below it and 2 At a length of 0 2 in 5mm the pins at the top of the MMD8P are too short to be driven deep into a hard material KEY FEATURES e Readings are species specific derived from industry standard moisture resistance curves for 48 popular species of wood e Joystick makes species selection fast and easy e Also measures and displays ambient temperature in F or C and RH e Measurements can be compensated for ambient temperature improving precision e Super bright yellow OLED organic light emitting diode dot matrix display e 99 record memory with manual or automatic time based recording e Multiple display options including analog bar graph e Measurement hold button e Audible moisture alarm e Pin cover doubles as calibration checker e Replaceable pins e Auto power off function can be disabled with adjust
17. s the lt or gt pad of the joystick with the Full Measurement Screen Analog Bar Graph Screen or Moisture Hygrometer Screen on the OLED Doing so will cause TC and its value to replace TA and its value To return to showing TA and its value press the lt or gt pad again SPECIFICATIONS e Moisture Measurement O Range 5 3 to 40 WME Wood Moisture Equivalent Accuracy Resolution 3 of reading 5 digits 0 1 e Ambient Temperature Measurement O Range 0 to 176 F 18 to 80 C O Accuracy Resolution 1 8 F 1 C 0 1 e RH Measurement O Range 20 to 95 RH O Accuracy Resolution 5 of reading 1 e Temperature Compensation Range Resolution 0 to 255 F 18 to 124 C 5 F e Display Type Yellow OLED in 128 x 64 dot matrix format e Display Size 1 54 in 39mm diagonal e Number of Species Moisture Resistance Curves 48 e Memory Capacity 99 records e Auto Memory Recording Sampling Rate Adjustable from 1 to 99 seconds e Auto Power Off Trigger Adjustable from 1 to 99 minutes of front panel inactivity e Pin Length 0 2 in 5mm e Low Battery Indication lt 6 5VDC e Operating Temperature 32 to 122 F 0 to 50 C e Calibration Check Point 15 9 3 WME e Dimensions 6 6 x 2 7 x 1 25 in 168 x 69 x 32mm e Weight including battery 4 6 oz 130g e Power Source 1 9V battery included OPERATING amp MAINTENANCE TIPS When the battery icon visible on all four display screens as well
18. tects any vertical force the meter s firmware will assume that you want to switch to the parameter above or below the one currently flashing Once you have reset any or all of the five parameters remember to press the MODE button to save your selection s exit Advanced Setup Mode and enter real time measurement mode with the Full Measurement Screen see next section on the OLED OPERATING INSTRUCTIONS To power on the meter press the button and hold it for at least three seconds To power off the meter follow the same instruction You will know that the meter has powered on when f GENER AL you see the welcome screen at right Wood Moisture Meter MMDSP Two seconds after it appears the welcome screen will be replaced by the screen at right which indicates remaining battery charge for 2 seconds After 2 seconds the battery charge screen will be replaced by the screen directly below the first of four measurement display options On this screen note e The number of the selected wood species at upper left e The species name at its right NO Fir Douglas e An icon representing the remaining battery charge at upper right XUME a e The currently measured moisture level in the center of the screen On the screen shown 99 9 WME should not be 95 RH TA 15 9 C mistaken for an actual reading rather it indicates any 3 reading above the meter s maximum measurement level A typical Full of 40 WME
19. tore Mem Screen 4 Assuming that you have enabled automatic storage press the MR MC button once Doing so begins storing complete moisture measurement records at the sampling rate you selected during the Advanced Setup procedure Note that the record number at upper right will continue to increment automatically at the selected sampling rate Also note that the word Stop will appear at the lower left of the display directly above the MR MC button 5 To stop automatic recording press the MR MC button again In manual or automatic storage mode when the space allocated for records has been used up the Store Mem Screen will advise the following MEM FULL RECALLING AND DELETING RECORDS To recall one or more stored moisture measurement records 1 Use the MODE button to navigate to the View Delete Mem View Delete Mem 1 6 Screen see photo at right The terms Delete and Exit will Mpi gtureRead 99 9 WME flash on the bottom line Aspen urrent Temp 22 0 F 2 Use the lt and or pads to navigate to the record of urrent RH 60 RH interest The record number appears at the upper right of the Ee cn oe OLED In the example at right the record displayed is No 1 of a total of six stored indicated by 1 6 on the display A typical moisture To recall additional records use the lt and or pads Unlike in Measurement record Setup mode you cannot use the lt or pads to fast forward or during recall fast rewind t
Download Pdf Manuals
Related Search