General MM1E Manual de usuario

Please read this manual carefully and thoroughly before using this product.

PIN-TYPE LED BAR GRAPH

MOISTURE METER

USER’S MANUAL

MM1E

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

TABLE OF CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 3 –4

Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

What’s in the Blister Pack . . . . . . . . . . . . . . . . . . 4

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5

etup Instructions . . . . . . . . . . . . . . . . . . . . . . . . 6

Install Battery . . . . . . . . . . . . . . . . . . . . . . . . . 6

Operating Instructions . . . . . . . . . . . . . . . . . . 6 –8

pecifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . 9

Warranty Information . . . . . . . . . . . . . . . . . . . . . . 9

Return for Repair Policy . . . . . . . . . . . . . . . . . . . 10

INTRODUCTION

Thank you for purchasing General Tools & Instruments’ MM1E

Pin-Type LED Bar Graph Moisture Meter. Please read this

user’s manual carefully and thoroughly before using the

meter.

The MM1E is designed for applications in woodworking,

building construction and home inspection. Examples include:

• Checking for moisture on or below the surface of

carpets and sub-flooring

• Measuring the surface moisture content of wood,

and drywall before painting/wallpapering, sealing

or treating

• Locating water leaks in roofs, floors and walls

• Selecting dry lumber

The meter bases its measurements on the relationship

between the moisture content of a material and its electrical

conductivity. The wetter a material, the higher its conductivity.

The two replaceable steel pins at the top of the MM1E serve

as the electrodes of a conductance meter optimized for

measuring moisture content. The meter displays

measurements in the unit %WME (Wood Moisture Equivalent).

For hard materials like wood, the meter’s readings largely

reflect surface moisture content because:

1) Moisture close to a surface has a greater effect on a

reading than moisture deep below it; and 2) The pins of the

MM1E are only 3/8 in. (10mm) long and cannot be driven

deep into a hard material. For softer materials like soil, paper

or powders, readings are more likely to reflect the average

moisture level of the material between its surface and the

penetration depth of the pins (normally far less than 3/8 in.).

The MM1E’s front-panel bar graph of 10 LEDs measures

%WME (Wood Moisture Equivalent) over two different ranges:

7 to 15% (LOW), and 16 to 35% (HIGH). A slide switch on the

back of the meter requires the user to choose the right range

for the material under test. The same switch functions as the

power switch. Whenever the meter is powered on, the bar

graph momentarily indicates remaining battery life. After

powering on, the meter’s calibration can be checked by

inserting the test pins into holes in the pin protection cover.

The MM1E is powered by a “9V” battery included in the

blister pack.

KEY FEATURES

• 10-LED display

• 7 to 35% measurement range, with separate HIGH

and LOW scales

• Protective cap doubles as calibration checker

• Full Battery and Low Battery indications

WHAT’S IN THE BLISTER PACK

The MM1E comes in a plastic blister pack along with a “9V”

battery, a protective cover for the test pins and this user’s

manual.

PRODUCT OVERVIEW

The figure below shows all of the controls and indicators on

the front and the back of the MM1E, as well as the location of

the battery compartment on the back.

Protective

Cover

IG and

LOW scale

lights

Battery

compartment

Power/Scale

switch

10-LED

bar graph

Test pins

(replaceable)

Calibration

check holes

FRONT BACK

SETUP INSTRUCTIONS

INSTALL BATTERY

To open the battery compartment, turn the meter over and

push the flange on the bottom of the battery compartment

cover up with your thumb. Lift and remove the cover and set

it aside. 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.

OPERATING INSTRUCTIONS

To power on the MM1E, slide the Power/Scale switch on

the back of the meter to the HIGH position.

Moving the switch should cause some or all of the LEDs on

the front panel to illuminate in sequence from bottom to top.

If no LEDs light, you can assume that the battery is dead

and must be replaced.

The number of LEDs that light corresponds to remaining

battery life. If all eight LEDs light, that means the battery

is fully charged. If only a few light, the battery is weak

and should be replaced soon.

A few seconds after the LEDs light, they will go dark. If most

of the LEDs lit up at power on, the HIGH LED at upper right

will light and remain lit. If only a few LEDs lit up, the HIGH

light will blink, indicating a weak battery that should be

replaced.

To check the calibration of the MM1E, power on the meter

by sliding the Power/Scale switch to the HIGH position.

Remove the protective cap from the top of the meter, taking

care not to stab yourself with the two sharp pins beneath the

cap. Then turn the cap over and place its two holes over the

two pins. If the meter is calibrated, an LED at the 18%, 19%,

20%, 21%, 22% position on the HIGH scale will illuminate.

To measure the moisture level of a material, power on the

meter into the HIGH scale and place the test pins on the

material. If it has a moisture level between 16% and 35%,

one of the LEDs will light. The number at its right indicates

the moisture level in %WME.

If the material’s moisture level is higher than 35%, the bottom

(35%) LED will light. This indicates that the material’s

moisture level is beyond the range of the MM1E. If the

material’s moisture level is lower than 35%, no LED will light.

To determine whether the material’s moisture level is lower

than 16% or between 16% and 35%, slide the Power/Scale

switch on the back of the meter to the LOW position. If one

LED lights, the number at its left indicates the moisture level in

%WME. If no LED lights, the material’s moisture level is less

than 7% and beyond the measurement range of the MM1E.

ome measurement tips:

1. To locate the source of a leak behind wood, plaster, drywall

or a ceiling, make measurements at different locations. The

leak is located when the meter displays the highest

reading.

2. Never use force to drive the pins into a hard surface.

3. When measuring the moisture level of soil, surface

readings will be lower than readings with the test pins

deep in the soil. 7

4. Conductive or metallic objects will always light the lowest

LED on the bar graph, regardless of the selected scale.

5. Measurements of wood are skewed by two variables:

ambient humidity and the density of the wood species.

The best way to compensate for the effect of these

variables is to develop your own moisture level curves,

based on your experience working with different species

of wood on a day-to-day basis.

6. The MM1E has no auto power off function. To avoid

discharging the battery, manually power off the meter after

each measurement session by sliding the Power/Scale

switch on the back to the OFF position.

SPECIFICATIONS

Measurement Range 7 to 35% WME (Wood Moisture

Equivalent) over two scales: 7% to

15% (Low) and 16% to 35% ( igh)

Measurement Accuracy ±1 LED

Pin Length 3/8 in. (10mm)

Calibration Check Point 20% ±2 LED

Low Battery Alarm Level <7.5V

Operating Temperature 32° to 140°F (0° to 60°C)

@<80% R. .

Storage Temperature 23° to 140°F (-5° to 60°C)

Current Consumption <15mADC

Dimensions 6.5 x 2.7 x 1 in. (164 x 69 x 26mm)

Weight 3.2 oz. (91g)

Power Source “9V” battery (included)

REPLACEMENT PARTS

The only replacement parts available for the MM1E are

replacement test pins (Part No. PIND4E).

WARRANTY POLICY

General Tools & Instruments’ (General’s) MM1E Pin-Type

LED Bar Graph 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 it is determined by General to be defective

in material or workmanship.

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.

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,

attorneys’ fees, expenses, losses alleged to be a

consequence of damage due to failure of, or defect in any

product including, but not limited to, any claims for loss of

profits.

RETURN FOR REPAIR POLICY

Every effort has been made to provide you with a reliable

product of superior quality. owever, in the event your

instrument requires repair, please contact our Customer

Service Department. If the product is determined to require

repair under the General Tools & Instruments Warranty Policy,

you will be issued a Return Goods Authorization. The unit will

be sent 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.

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