USER`S MANUAL MODEL 407777 Heavy Duty - Cole

USER`S MANUAL MODEL 407777 Heavy Duty - Cole
USER'S MANUAL
MODEL 407777
Heavy Duty Moisture Meter
Introduction
Congratulations on your purchase of Extech's Heavy Duty Moisture Meter. This meter
measures the moisture content of wood. Measurements are made using the supplied
remote intrusive sensor.
Warranty
EXTECH INSTRUMENTS CORPORATION warrants the basic instrument to be free of
defects in parts and workmanship for three years from date of shipment (a six month
limited warranty applies on sensors and cables). If it should become necessary to return
the instrument for service during or beyond the warranty period, contact the Customer
Service Department at (781) 890-7440 for authorization. A Return Authorization (RA)
number must be issued before any product is returned to Extech. The sender is
responsible for shipping charges, freight, insurance and proper packaging to prevent
damage in transit. This warranty does not apply to defects resulting from action of the
user such as misuse, improper wiring, operation outside of specification, improper
maintenance or repair, or unauthorized modification. Extech specifically disclaims any
implied warranties or merchantability or fitness for a specific purpose and will not be
liable for any direct, indirect, incidental or consequential damages. Extech's total liability
is limited to repair or replacement of the product. The warranty set forth above is
inclusive and no other warranty, whether written or oral, is expressed or implied.
Calibration and Repair Services
Extech offers complete repair and calibration services for all of the products we sell. For
periodic calibration, NIST certification or repair of any Extech product, call customer
service for details on services available. Extech recommends that calibration be
performed on an annual basis to insure calibration integrity.
(
Tech Support Hotlines
781-890-7440 ext. 200
[email protected]
www.extech.com
Copyright © 2001 Extech Instruments Corporation.
All rights reserved including the right of reproduction in whole or in part in any form.
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Specifications
General Specifications
Circuit
Display
Measurement Range
Memory Table
Data Hold
Sample Rate
Sensor Structure
Memory Record / Recall
Power off
Data Output
Operating Temperature
Operating Humidity
Power Supply
Power Current
Weight
Size
Custom LSI microprocessor circuit
Dual function 0.5" (13mm) 1999 count LCD display
9% to 30% Moisture Content
9 memory groups for approx. 150 species of wood
Front Panel push-button
Approx. 0.8 seconds
Remote two-prong intrusive sensor
Records Max/Min readings for later recall
Auto shut off after 10 minutes
RS 232 PC serial interface
32°F to 122°F (0°C to 50°C)
Max. 90% RH
9V battery
Approx. DC 5.8 mA.
0.73 lbs (330g) (including batteries & probe)
Main instrument: 7.1 x 2.8 x1.3" (180 x 72 x 32 mm)
Probe: 0.9 diameter x 6.54" (23 x 165mm)
Spare pins (10) and protective rubber holster
Accessories
Range Specifications
Measurement
Range
Resolution
Moisture content
9 to 30%
0.1 %
Temperature compensation 32°F to 122°F (0°C to 50°C)
Accuracy
± (4% + 5d)
Meter Description
Sensor input
RS-232 input
Sensor pins
LCD Display
Keypad
Sensor
Handle
Rubber
holster
Battery compartment
(on rear)
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Operating Instructions
Preparation
1. Insert the sensor into the sensor input jack on the meter top
2. Ensure that a fresh 9V battery is installed by powering the unit, observing that the
LCD illuminates, and that the "LBT" (low battery indicator) is not illuminated on the
LCD.
3. Remove the rubber pin protector on the sensor tips before measurements are
performed.
Auto Shutoff Feature
The meter will automatically turn OFF if no function button is pressed in any 10 minute
period. To disable this feature, press the RECORD key to engage the record function.
Measurement Procedure Selection
Follow the procedure below that most suits your application. Procedure I is used when the
wood under test is of a known type. Procedure II is used when the wood type under test is
unknown.
Measuring Procedure I (for use on known wood species)
1. Turn ON the meter.
2. Select the material group (1 through 9) by pressing the Material Select button. Refer
to the Appendices at the end of this manual for groups and species listings.
3. According to Table I in the Material Group Appendix, select Material Groups 1 through
9 for the general woods listed or Group 9 for Chipboard (for unknown materials with
paper or paint covering, refer to Procedure II).
4. Insert the sensor's test pins into the wood under test.
5. Insertion should be to at least a 2mm depth for highest accuracy. If this is not
possible, carefully insert the test pins as far as possible without using undue force.
6. The meter display will now indicate moisture content in %.
7. If the moisture content is greater then 30% the display will indicate: " - - - - - - -"
8. If the moisture content is less than 9% the display will indicate: "_ _ _ _ _ "
Measuring Procedure II (for use on unknown wood sources)
1. Turn ON the meter.
2. Select Material Group 1 by pressing the Material Select button.
3. Insert the sensor's test pins into the material under test.
4. Insertion should be to at least a 0.08" (2mm) depth for highest accuracy. However, if
this is not possible, carefully insert the test pins as far as possible without using
undue force.
5. The meter display will now indicate moisture content in %.
6. This method is useful for reference only and cannot match the higher accuracy
provided by Method I. However, a fair approximation is obtained for measuring
materials whose make up is not known or not on the lists provided in this manual's
appendices.
Temperature Compensation
This meter is calibrated for use at ambient temperature: 68oF (20oC). When the ambient
temperature is above or below this value, manual temperature compensation should be
performed to maintain accuracy. Follow these steps to manually compensate for ambient
temperature differences:
1. Check that the RECORD function is not engaged (REC/MAX/MIN icons are not on the
display).
2. Press the left TEMP. ADJ key to increase or the right key to decrease the
temperature display from the 20oC default to the new ambient temperature (in oC).
The temperature can be adjusted in 1 degree steps.
3. The value will be stored after 4 seconds. Temperature compensation adjustments are
not stored in memory when the meter is turned OFF however.
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Data Hold
Press the DATA HOLD key to freeze the displayed value on the LCD. Press the HOLD key
again to release the data hold function.
MIN / MAX Recording
When selected, the RECORD function records the Minimum and Maximum readings.
To begin recording:
1. Press the RECORD key once. The REC indicator will appear on the display. Now
begin to take measurements.
2. Press the RECALL key after measurements have been taken to enter the MAX mode.
The MAX indicator along with the maximum measurement value will appear on the
LCD display.
3. Press the RECALL key again and the MIN indicator along with the minimum
measurement value will appear on the LCD display.
4. To return to normal operation, press the RECORD key again. The display indicators
REC/MAX/MIN will disappear.
Maintenance
Battery Replacement
The LBT (low battery) icon appears when the battery is weak. To replace the battery:
1. Remove the meter's rubber protective holster.
2. Remove the battery compartment cover on the rear of the meter using a small coin or
screwdriver.
3. Replace the 9V battery.
4. Reinstall the battery compartment cover and holster.
Sensor's Test Pin Replacement
10 Spare pins are provided with the meter. If the Test Pins are damaged (oxidized, bent,
etc.) they must be replaced in order to continue obtaining reliable readings. Follow the
replacement steps below:
1. Loosen the lock nuts at the base of the test pins.
2. Remove and replace the existing pins and tighten the lock nuts.
RS-232 PC Interface
The meter's RS-232 serial port (3.5mm phono jack) is located at the top of the meter next
to the sensor input jack. This interface is for use with the Extech Data Acquisition
Software/Hardware kit (Part Number 407000). For more information, contact Extech or
refer to the 407000 user's manual for details on the PC interface.
Meter Calibration Check
1. Ensure that the RECORD" function is not engaged.
2. Select Material Group 1 using the Material Select button.
3. Press and hold both the CALIBRATION and + buttons.
4. The display will begin to count down from 5 to 1.
5. If the meter's existing calibration is correct, the LCD will display "good"
6. If the meter's existing calibration is incorrect, the LCD will display "Err".
7. If the calibration is incorrect follow the steps in the next section to recalibrate.
Meter Recalibration
1. Remove the Meter's protective rubber holster.
2. Select Material Group 1 via the Material Select button.
3. Remove the rear battery compartment cover and locate the VR1 potentiometer that
sits inside the battery compartment on the left side.
4. Press and hold the “+ ” Calibration button.
5. Adjust VR1 for a display of "18.0".
6. For any problems with calibration contact the Extech Repair Department.
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Appendix 1 - Alphabetized Table of Material Groups (Material & Group)
Abura
4 Erimado
5 Meranti, Red (light or 2 Pine, Ponderosa 3
dark)
Afara
1 Fir, Douglas
2 Meranti, white
2 Pine, Radiata
1
Afrormosia
6 Fir, Grand
1 Merbau
2 Pine, Carribean,
3
pitch
Afzelia
4 Fir, Noble
8 Missanda
3 Poplar, Black
1
Agba
8 Gegu, Nohor
7 Muhuhi
8 Pterygota, African 1
Amboyna
6 Greenheart
3 Muninga
6 Pyinkado
4
Ash. European
1 Guarea, Black
8 Musine
8 Queensland
3
Walnut
Ash. Japanese
1 Guarea, White
7 Musizi
8 Queensland Kauri 8
Ash. American
2 Gum, American Red 1 Myrtle, Tasmanian 1 Ramin
6
Ayan
3 Gum, Saligna
2 Niangon
3 Redwood, Baltic
1
(Europe)
Baguacu, Brazilian
5 Gum, Southern
2 Oak, Japanese
1 Redwood,
2
Californian
Balsa
1 Gum, Spotted
1 Oak, Tasmanian
3 Redwood, Baltic
1
(Europe)
Bange Wanga
1 Gurjun
1 Oak, Turkey
4 Rosewood, Indian 1
Basswood
6 Hemlock, Western
3 Oak, American Red 1 Santa Maria
7
Bech, European
3 Hickory
5 Oak, American white 1 Sapele
3
Berlina
2 Hyedunani
2 Oak, European
1 Seraya, Red
3
Binvang
4 Iroko
5 Obeche
6 Silky Oak, African 3
Birch, European
8 Ironbank
2 Odoko
4 Silky Oak,
3
Australian
Birch, Yellow
4 Jarrah
3 Okwen
2 Spruce, Norway 3
(European)
Bisselon
4 Jelutong
3 Olive E. African
2 Spruce, Sitka
3
Bitterwood,
5 Kapur
1 Olivillo
6 Sterculia, Brown 1
Blackbutt
3 Karri
1 Opepe
7 Stringybar, Yellow 3
Bosquiea
1 Kauri, New Zealand
4 Padang
1 Stringybark,
3
Messmate
Boxwood, Maracaibo 1 Kauri, Queensland
8 Padauk, African
5 Sycamore
5
Cahoma
1 Keruing
5 Panga Panga
1 Tallowwood
1
Camphorwood, E.
3 Kuroka
1 Persimmon
6 Teak
5
African
Canarium, African
2 Larch, European
3 Pillarwood
5 Totara
4
Cedar, West Indian
8 Larch, Japanese
3 Pine, Maritime
2 Turpentine
3
Cedar, Western Red
3 Larch, Western
5 Pine, Nicaraguan
3 Utile
8
Pitch
Cherry, European
8 Lime
4 Pine, American Long 3 Walnut
3
Leaf
Queensland
Chestnut
3 Loliondo
3 Pine, Corsican
3 Walnut, European 3
Chipboard
9 Mahogany, West
2 Pine, Yellow
1 Walnut, African
8
Indian
Coachwood
6 Mahogany, African
8 Pine, Hoop
3 Walnut, N. Guinea 2
Cordia, American light 5 Makore
2 Pine, Kauri
4 Walnut, American 1
Cypress, E. African
1 Mansonia
2 Pine, Huon
2 Wandoo
8
Danta
3 Maple, Pacific
1 Pine, Scots
1 Wawa
6
Douglas Fir
2 Maple, rock
1 Pine, Lodgepole
1 Whitewood
3
Elm, English
4 Maple, Queensland
2 Pine, Sugar
3 Yew
3
Elm, Rock
4 Maple, Sugar
1 Pine, New Zealand, 2
White
Elm, White
4 Matai
4 Pine, Parana
2
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Appendix 2 - Table of Materials Alphabetized by Group
Afara
1 Canarium, African
2 Pine, Hoop
Ash. European
1 Douglas Fir
2 Pine, Carribean,
pitch
Ash. Japanese
1 Fir, Douglas
2 Pine, Sugar
Balsa
1 Gum, Saligna
2 Pine, Nicaraguan
Pitch
Bange Wanga
1 Gum, Southern
2 Pine, Corsican
Bosquiea
1 Hyedunani
2 Pine, American
Long Leaf
Boxwood, Maracaibo
1 Ironbank
2 Queensland Walnut
Cahoma
1 Mahogany, West Indian 2 Sapele
Cypress, E. African
1 Makore
2 Seraya, Red
Fir, Grand
1 Mansonia
2 Silky Oak, African
Gum, American Red
1 Maple, Queensland
2 Silky Oak ,
Australian
Gum, Spotted
1 Meranti, Red (light or
2 Spruce, Norway
dark)
(European)
Gurjun
1 Meranti, white
2 Spruce, Sitka
Kapur
1 Merbau
2 Stringybar, Yellow
Karri
1 Okwen
2 Stringybark,
Messmate
Kuroka
1 Olive E. African
2 Turpentine
Maple, Pacific
1 Pine, New Zealand,
2 Walnut Queensland
White
Maple, rock
1 Pine, Huon
2 Walnut, European
Maple, Sugar
1 Pine, Maritime
2 Whitewood
Myrtle, Tasmanian
1 Pine, Parana
2 Yew
Oak, Japanese
1 Redwood, Californian
2 Abura
Oak, American white
1 Walnut, New Guinea
2 Afzelia
Oak, American Red
1 Ayan
3 Binvang
Oak, European
1 Bech, European
3 Birch, Yellow
Padang
1 Blackbutt
3 Bisselon
Panga Panga
1 Camphorwood, E.
3 Elm, White
African
Pine, Lodgepole
1 Cedar, Western Red
3 Elm, Rock
Pine, Yellow
1 Chestnut
3 Elm, English
Pine, Scots
1 Danta
3 Kauri, New Zealand
Pine, Radiata
1 Greenheart
3 Lime
Poplar, Black
1 Hemlock, Western
3 Matai
Pterygota, African
1 Jarrah
3 Oak, Turkey
Redwood, Baltic (Europe) 1 Jelutong
3 Odoko
Redwood, Baltic (Europe) 1 Larch, European
3 Pine, Kauri
Rosewood, Indian
1 Larch, Japanese
3 Pyinkado
Sterculia, Brown
1 Loliondo
3 Totara
Tallowwood
1 Missanda
3 Baguacu, Brazilian
Walnut, American
1 Niangon
3 Bitterwood,
Ash. American
2 Oak, Tasmanian
3 Cordia, American
light
Berlina
2 Pine, Ponderosa
3 Erimado
7
3 Hickory
3 Iroko
5
5
3 Keruing
3 Larch, Western
5
5
3 Padauk, African
3 Pillarwood
5
5
3
3
3
3
3
Sycamore
Teak
Afrormosia
Amboyna
Basswood
5
5
6
6
6
3 Coachwood
6
3 Muninga
3 Obeche
3 Olivillo
6
6
6
3 Persimmon
3 Ramin
6
6
3
3
3
4
4
4
4
4
4
Wawa
Gegu, Nohor
Guarea, White
Opepe
Santa Maria
Agba
Birch, European
Cedar, West Indian
Cherry, European
6
7
7
7
7
8
8
8
8
4
4
4
4
4
4
4
4
4
4
5
5
5
Fir, Noble
Guarea, Black
Kauri, Queensland
Mahogany, African
Muhuhi
Musine
Musizi
Queensland Kauri
Utile
Walnut, African
Wandoo
Chipboard
8
8
8
8
8
8
8
8
8
8
8
9
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