PRECISION MULTI-SPECIES
WOOD MOISTURE METER
USER’S MANUAL
MMD8P
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
Please read this manual carefully and thoroughly before using this product.
TABLE OF CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Key Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 –3
What’s in the Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Setup Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 –5
Install Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Advanced Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 –5
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 – 10
Select a Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 –7
Select a Species . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 –8
Making Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Storing Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 –9
Recalling and Deleting Records. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Compensating for Temperature . . . . . . . . . . . . . . . . . . . . . . . . 9 – 10
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 – 11
Operating & Maintenance Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 – 12
Return for Repair Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
INTRODUCTION
Thank you for purchasing General Tools & 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 woodworking and lumber purchasing. Examples include:
• Measuring the moisture content of wood before painting, wallpapering, sealing,
treating or joining
• 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
• Readings are species-specific, derived from industry-standard moisture-resistance
curves for 48 popular species of wood
• Joystick makes species selection fast and easy
• Also measures and displays ambient temperature (in °F or °C) and RH
• Measurements can be compensated for ambient temperature, improving precision
• Super-bright yellow OLED (organic light-emitting diode) dot matrix display
2
• 99 record memory with manual or automatic (time-based) recording
• Multiple display options, including analog bar graph
• Measurement hold button
• Audible moisture alarm
• Pin cover doubles as calibration checker
• Replaceable pins
• Auto power off function (can be disabled) with adjustable “time-out” trigger
• Separate indications of remaining battery charge and low battery charge
• 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
TEST PINS
OLED DISPLAY
(MR MC) MULTI-FUNCTION
BUTTON
1. PRESS AND HOLD TO POWER METER
ON & OFF
2. PRESS BRIEFLY TO HOLD READING
3. PRESSED IN MEMORY STORE MODE,
STORES DISPLAYED RECORD
4. PRESSED IN MEMORY VIEW MODE,
DELETES DISPLAYED RECORD
5. PRESSED IN TEMPERATURE
COMPENSATION MODE, SAVES
SELECTED TEMPERATURE
BATTERY COMPARTMENT
(ON BACK OF METER)
JOYSTICK
TEMPERATURE
& RH SENSORS
FULL
66%
33%
LOW
BATTERY
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
RH AND TEMPERATURE READINGS
4. PRESSED AGAIN, SWITCHES TO MEMORY
STORE MODE
5. PRESSED AGAIN, SWITCHES TO MEMORY
VIEW MODE
6. PRESSED AGAIN, 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
3
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 moisturemeasurement records to provide space for
4. Whether records are stored manually or automatically. If automatic storage is 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:
2. Moisture alarm:
3. Memory storage:
4. Memory timer:
5. Temperature unit:
To enter Advanced Setup mode
MODE
showing the default settings. On the right side of the top (APO) line,
flashing.
ON
, with a 2-minute “time out” trigger point (2 minutes of inactivity at the front-
panel buttons)
OFF
OFF
MANUAL
°F
, power on the meter in a special way by pressing and holding the
button as you press and hold the button. The following setup screen will appear,
2Mins.
SETTING
APO. 2Mins.
Alarm OFF
Store Mem. OFF
Mem. Timer MANUAL
Temp Unit °F
EXIT
will initially be
To change any of these operating and housekeeping settings:
A. Navigate to its line by pressing the ▲ and ▼ pads of the joystick ( button). When a
setting is ready to be changed, it will begin to flash.
B. Use the and/or pads to select a new value.
MODE
C. Press the
one setting), exit Advanced Setup Mode, and enter real-time measurement mode.
4
button to save the selection (or selections, if you change more than
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 APO 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%
Store Mem.: OFF
3.
matter, there is no reason
, or 1 to 100 memory records, in 1-record increments. As a practical
not
to enable memory storage, and no reason
not
to select
the maximum memory capacity available—100 records.
Mem. Timer: MANUAL
4.
(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
5. T
emp Unit:
°F or °C
1s(AUTO), 2s(AUTO)
, etc. through
99s(AUTO)
.
Advanced Setup Hints:
• Pressing and holding the or 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.
• You can use the and 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
pad four times with the APO trigger showing
displays in turn:
1Min., OFF, 99Mins
and
98Mins.
2Mins.
would produce the following
• When pressing the and pads, be sure not to apply any vertical force. If the
joystick detects any vertical force, the meter’s firmware will assume that you want to
switch to the parameter above or below the one currently flashing.
MODE
Once you have reset any or all of the five parameters, remember to press the
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
you see the “welcome” screen at right.
Two seconds after it appears, the welcome screen
will be replaced by the screen at right,
(which indicates remaining battery charge)
for 2 seconds.
5
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:
• The number of the selected wood species at upper left
• The species name at its right
• An icon representing the remaining battery charge at upper
right
• The currently measured moisture level in the center of the
screen. (On the screen shown,
99.9%WME
should not be
mistaken for an actual reading; rather, it indicates any
reading above the meter’s maximum measurement level
of 40%WME.)
• The current relative humidity (RH) percentage at lower left
TA.
• The current ambient temperature (
) at lower right
A typical Full
Measurement Screen
(Display Option 1)
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
the Full Measurement Screen on the OLED. Note on the screen at
right that the digital readout of moisture level has been replaced by
an analog reading corresponding to the width of the white rectangle
at left. The linear scale below the rectangle indicates values from 5.3
to 40.0%WME from left to right.
L
Also note the addition of the small letters
L
respectively.
5.3%WME, and
indicates a measured moisture level below
H
indicates a measured moisture level above
and Hat left and right,
A typical Analog Bar Graph
Screen (Display Option 2)
40%WME.
Finally, note the presence of the word
currently displayed level represents a held measurement.
Hold
in the middle of the display.
To hold a measurement
Hold
indicates that the
, briefly press
the button. To release the hold (“unfreeze” the display), briefly press the button again.
%
Note: A held reading on the Full Measurement Screen is indicated by the flashing of the
WME
between the measured value and
.
sign
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)
6
The fourth and final measurement display option is the Moisture-
Fir,Douglas
Pine,Southern
SPF
Alder
Apitong
Aspen
Ash,White
Basswood
Birch
Cedar,Eastern Red
Cedar,Incense
Cherry
Cottonwood
Cypress
Elm,American
Fir,Red
Fir,White
Gum,Black
Gum,Red
Hemlock,Western
Hackberry
Hickory
Keruing
Larch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Magnolia
Mahogany,African (also Khaya)
Mahogany,H ondu ras
Mahogany,P hili ppin e
Maple,Hard/Soft
Meranti,Dark Red
Oak,Red
Oak,White
Pecan
Pine,Longleaf
Pine,Ponderosa
Pine,Shortleaf
Pine,Sugar
Pine,White
Poplar,Yellow
Ramin
Radiata Pine
Redwood
Spruce,Sitka
SPF, CO FI
Teak
Virola
Walnut,Black
Western Hemlock-COFI
Sp e ci es Cod e Char t
Co d e N o.Woo d S p ec ie s
Wo o d Sp ec ie s
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Co d e N o.
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
absence of the remaining battery charge icon. As on the Full
Measurement Screen and Large Numeric Screen, held readings
are indicated by the flashing of the
%
sign to the right of the
measured moisture value.
Note: When the MMD8P is powered on following a manual or
A typical MoistureHygrometer Screen
(Display Option 4)
automatic (APO-triggered) shutdown, it will automatically resume
operation with the last selected measurement display option.
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 ▲ and ▼ 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.
7
Note: Unlike in Setup mode, pressing and holding the or pad of the joystick will
can
the increment of change in Code Nos. However, as in Setup mode, you
use the and
not
increase
pads to “wrap around” the low or high end of the code range. Specifically, pressing the 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 sharp 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:
• The record number (7 out of 100 available locations) on the top line
• The moisture level measurement itself (
MoistureRead.
• The number and name of the wood species tested (
in the example below)
No. 3 SPF
)
• The ambient temperature and relative humidity at the time
59.9°F
and
of measurement (
60.0%RH
• Any temperature compensation applied (
• An indication (
Record
at lower left) that the record is available
)
0.0°F
)
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.
A typical moisture
measurement record,
ready for storage
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
3. Press the
Exit
MODE
on the bottom line will both flash.
4. Assuming that you have enabled manual storage, press the (
directly under
Record
MODE
button until you see the Moisture-Hygrometer Screen.
button once to display the Store Mem. Screen. The terms
MR MC
) button—
— once. This stores the record in memory. Note that pressing
Record
and
the button increments the record number counter at the upper right of the OLED.
8
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
3. Press the
MODE
4. Assuming that you have enabled automatic storage, press the (
MODE
button until you see the Moisture-Hygrometer Screen.
button once to display the Store Mem. Screen.
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
Stop
sampling rate. Also note that the word
MR MC
directly above the (
) button.
5. To stop automatic recording, press the (
will appear at the lower left of the display,
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
Screen (see photo at right). The terms
MODE
button to navigate to the View/Delete Mem
Delete
and
Exit
will
flash on the bottom line.
2. Use the and/or pads to navigate to the record of
interest. The record number appears at the upper right of the
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).
To recall additional records
, use the and/or pads. Unlike in
Setup mode, you cannot use the or pads to fast-forward or
A typical moisture
measurement record
during recall
fast-rewind through record numbers. However, as in Setup mode,
can
you
use the 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
Pressing the (
MR MC
Delete?” and the options
Pressing the (
MR MC
Yes
and
Exit
, flashing, on the bottom line.
) button to answer “Yes” takes you to another screen that asks “All
No
and
Yes
, flashing, on the bottom line.
) 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
found!
in the middle of the screen.
Pressing the
MODE
Exit
, flashing, in the lower right corner; and 3) the message
File not
button to Exit the View/Delete Mem Screen opens the Temperature
Compensation Adjustment Screen (see next section).
9
COMPENSATING 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
MODE
screen shown below. To do so, press the
the View/Delete Mem Screen, and then press the
The default temperature for which all MMD8P measurements are
compensated is 70°F. Using the 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
or pad increases or decreases the compensation temperature
by 5°F. Typically, you adjust the compensation temperature until it
matches the ambient temperature.
When you have finished adjusting the compensation temperature, press the (
(which is directly below
Compensation Selection Screen without making a change, press the
directly below
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 (
the or pad of the joystick with the Full Measurement Screen, Analog Bar Graph Screen or
Moisture-Hygrometer Screen on the OLED. Doing so will cause
and its value.
To return to showing
Exit
Save & Exit
on the above screen).
TA.
and its value, press the or pad again.
on the above screen). To “pass through” the Temperature
button until you see
MODE
once more.
The Temperature
Compensation Selection
Screen
MODE
button (which is
TC.
) instead of the ambient temperature (
TC.
and its value to replace
MR MC
TA.
) button
), press
TA.
SPECIFICATIONS
• Moisture Measurement:
Range: 5.3 to 40%WME (Wood Moisture Equivalent)
Accuracy/Resolution: ±(3% of reading + 5 digits)/0.1%
• Ambient Temperature Measurement:
Range: 0° to 176°F (-18° to 80°C)
Accuracy/Resolution: ±1.8°F (1°C)/ 0.1°
• RH Measurement:
Range: 20 to 95%RH
Accuracy/Resolution: ±5% of reading/ 1%
• Temperature Compensation Range/Resolution: 0° to 255°F (-18° to 124°C)/ 5°F
• Display Type: Yellow OLED in 128 x 64 dot matrix format
• Display Size: 1.54 in. (39mm) diagonal
• Number of Species Moisture-Resistance Curves: 48
• Memory Capacity: 99 records
• Auto Memory Recording Sampling Rate: Adjustable from 1 to 99 seconds
• Auto Power Off Trigger: Adjustable from 1 to 99 minutes of front-panel inactivity
10
• Pin Length: 0.2 in. (5mm)
• Low Battery Indication: <6.5VDC
• Operating Temperature: 32° to 122°F (0° to 50°C)
• Calibration Check Point: 15.9% ±3%WME
• Dimensions: 6.6 x 2.7 x 1.25 in. (168 x 69 x 32mm)
• Weight (including battery): 4.6 oz. (130g)
• Power Source: (1) “9V” battery (included)
OPERATING & MAINTENANCE TIPS
When the battery icon (visible on all four display screens as well 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 operation.
WARNING:
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.
Any changes of modifications to this unit not expressly approved by the party
WARRANTY INFORMATION
General Tools & 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 & 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 incidental,
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:
Remember to include a copy of your proof of purchase, your return address, and your phone
number and/or e-mail address.
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
Specifications subject to change without notice
©2013 GENERAL TOOLS & INSTRUMENTS
NOTICE - WE ARE NOT RESPONSIBLE FOR TYPOGRAPHICAL ERRORS.
MAN# MMD8P
10/29/13
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