General MSV100 Manual de usuario

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

3-IN-1 STUD/VOLTAGE/METAL

DETECTOR

USER’S MANUAL

MSV100

TABLE OF CONTENT

Intro uction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 –3

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

Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Pro uct Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 –5

Setup Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

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

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

Detecting Woo Stu s, Joists an Frames . . . . 6 –7

Detecting Metal Stu s, Pipes an Frames . . . . . . . 8

Detecting AC Voltage . . . . . . . . . . . . . . . . . . . . . . . 8

Operating & Maintenance Tips . . . . . . . . . . . . . . . . . . . . . . 9

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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

INTRODUCTION

The MSV100 exploits two electrical phenomena to 1) accurately locate wood

studs and joists and metal behind walls or inside furniture and 2) detect

energized AC outlets and “live” wires carrying AC voltage behind walls or

ceilings.

The first phenomenon—the so-called fringing field effect—refers to the

change in the capacitance of a material produced by its slight spreading of a

local electric field. n the case of the MSV100 (and most pinless moisture

meters), this field is generated by the instrument itself. When you power on the

MSV100 (by pressing the PUSH button on its left side), two plates behind its

rear panel are charged with opposite polarity and pulsed at a high frequency.

This causes current to flow, creating a three-dimensional electromagnetic wave

that extends about 2 in. (50mm) perpendicular to the instrument. When the

back of the MSV100 is placed against a wall, ceiling or fabric, the increased

capacitance of that material (as well as any material behind it) distorts the

wave’s electric field to a measurable extent.

The distortion of the field is sensed by a coil in the MSV100. nduction—the

second phenomenon—causes current to flow in the instrument in direct

proportion to how much the wave is distorted. The MSV100 uses the

relationship between current flow and the presence (or absence) of material

within the instrument’s local field to make two precise determinations. One is

the thickness of the surface behind the back of the instrument when placed

against it. This inferred measurement of thickness is used to adjust the

sensitivity of the MSV100’s induction circuit, in effect calibrating the detector to

the test environment. Different baseline sensitivities are used for wood and

metal.

Once you have calibrated the detector in this way, you continue holding the

back of the instrument against the surface and continue pressing the PUSH

button while slowly moving the detector to the left in an area where a stud, joist

or metal rod may be. There will be an abrupt change in the level of induced

current as you pass the edge of any hidden wood or metal. This is the second

determination—the position of the right edge of a wood or metal object.

Repeat the procedure, but now moving to the right, and the MSV100 will again

detect a change in induced current. However, this time the change will be at the

left edge of the hidden wood or metal. By using a pencil and the MSV100’s

marker slot and “peak” central arrow to mark the left and right edges, you can

precisely locate the center of any wood or metal stud or frame, wood joist, or

metal pipe or conduit.

Using induction alone, the MSV100 can also identify “live” (energized) AC

outlets and locate hidden “hot” wires and outlets. This is not only convenient,

but essential to safety. On jobs ranging from installing a through-the-wall air-

conditioner to renovating a house with new wiring and plumbing, it is vital to

know the locations of existing electrical cables and wires and metal pipes

carrying water or gas. Without access to the building’s construction drawings,

there is no way to be sure that an action as simple as driving a nail into a wall

will not produce an electric shock—or far worse.

Regardless of which mode it is operating in, the MSV100 will display the

familiar Ꮨicon whenever it detects AC voltage. t’s critical to realize that AC

voltages as weak as 50V can be hazardous to your health.

KEY FEATURE

• Detects wood joists/studs, live wires and pipes/cables behind walls or

ceilings

• Also detects wood furniture frames

• Automatically compensates for wall thickness in all three detection modes

• n AC voltage mode, automatically compensates for distance to live wire

• Center arrow and beeper indicate edge of detected material

• Marking slot on top of unit

• Big, bright backlit LCD

• Powered by “9V” battery

• 1 year warranty

AFETY IN TRUCTION

• Before using the instrument to detect wood and metal on the same side of

a wall as a live AC wire, de-energize the appropriate circuit.

• Before penetrating a wall, ceiling or floor, detect whether there are wires or

pipes behind it.

PRODUCT OVERVIEW

The two figures below show the MSV100’s controls, indicators and display

icons. Familiarize yourself with their positions and functions before moving on

to the Setup nstructions and Operating nstructions.

A. Mar er slot. For inserting pencil

to mark left and right edges of wood

or metal structure. Mark is directly

above central arrow indicating peak

change in induced current.

B. Mode switch. Optimizes sensitivity

for detecting wood, AC voltage or

metal. Switch positions are labeled

STUD, AC WIRE and METAL.

ABED

C. PUSH button. Activates backlight and powers on instrument. When on,

instrument generates local electromagnetic field and measures current

induced by distortion of field by wood or metal. When released, PUSH button

powers off instrument.

D. LCD. ndicates detection mode and strength of change in induced current.

E. Beeper holes. Enable beeper to be heard.

F. “Live” wire indicator

G. Indicator of a nearby object. The closer the object, the more bars will light,

from the outside in.

H. Wood detection mode indicator

I. AC wire detection mode indicator

J. Metal detection mode indicator

K. Central arrow. When lit, indicates that detector is at edge of an object

L. Low battery indicator

HIJ

ETUP IN TRUCTION

INSTALL BATTERY

To open the battery compartment, turn the MSV100 over and lift the tab on the

bottom of the battery compartment cover. Remove the cover and set it aside.

Then insert the included “9V” battery into the compartment, orienting the

battery so its + and – terminals (anode and cathode) line up with the + and –

markings in the compartment below the flanges. Don’t forget to place the black

fabric strap under the battery before you install it to make the battery easy to

remove later.

OPERATING IN TRUCTION

DETECTING WOOD STUDS, JOISTS AND FRAMES

1. Slide the Mode switch on the front panel (Callout B on p. 4) to the STUD

position. The Wood detection mode indicator arrow (Callout H on p. 5)

will illuminate.

2. Hold the back of the MSV100 against an area of the wall, ceiling or

upholstery behind which you would not expect to find a stud, joist or

frame. What you are looking for is a section of the surface with nothing

but air behind it.

3. Press and hold the PUSH button on the left side of

the instrument with your right thumb while moving

the MSV100 a few inches to the left and right, and

then a few inches up and down.

f the beeper sounds for several seconds and then

stops, you have chosen an area with nothing but

air behind it and successfully calibrated the

instrument’s sensitivity to the thickness of the

wall, ceiling or fabric. DO NOT release the PUSH

button yet.

f the beeper fails to stop sounding as you move the instrument, there is

something distorting the field behind the area that you have chosen.

Release the PUSH button, choose another area, and repeat this step until

you have successfully calibrated the MSV100 to the thickness of the

surface.

4. Keeping the PUSH button pressed, hold the back of the MSV100 against

the surface while moving the instrument slowly to the left at the same

height. As you begin, the only icon on the green backlit LCD should be the

black Wood detection mode indicator arrow (Callout H). When the

instrument comes within 1.5 in. (38mm) of the right edge of a wood stud,

joist or frame, black vertical bars will begin appearing on both the left and

right sides of the display. The nearer you get to the wood object, the more

bars will appear, from the outside in.

5. Continue to press and hold the PUSH button while moving the MSV100

slowly to the left until the central arrow (Callout K) lights up and the

beeper sounds. The right edge of the wood stud, joist or frame is now

directly behind or below the center of the instrument. Mark this position

on the surface by placing the tip of a pencil in the marker slot on the top

of the MSV100 (Callout A on p. 4). To verify that an edge has been

detected, continue moving the instrument slowly to the left; the beeper

should stop sounding and the black bars should disappear.

6. Without releasing the PUSH button, repeat Steps 4 and 5 above, but this

time moving the MSV100 slowly to the right. When the instrument detects

the left edge of the wood stud, joist or frame, mark that position on the

surface with a pencil.

7. Draw a line between the marks representing the right and left edges.

The center of the wood stud, joist or frame is directly behind or below the

center of this line.

Notes:

• f you accidentally release the PUSH button during any step, you must

repeat the entire procedure, beginning with the calibration steps.

• For the calibration steps (#2 and #3), do not choose an area whose

surface is wet or freshly painted.

• f the “Live wire” indicator appears during any step, mark the position of

the MSV100 on the surface for later reference.

DETECTING METAL STUDS, PIPES AND FRAMES

1. Slide the Mode switch on the front panel (Callout B on p. 4) to the METAL

position. The Metal detection mode indicator arrow (Callout J on p. 5) will

illuminate.

2. Repeat Steps 2 through 7 on pages 6 and 7. As with wood, you will

calibrate the MSV100 for surface thickness, mark the right and left edges

of detected metal, and locate the center of a hidden metal stud, pipe or

frame.

3. Read the three Notes below the procedure for detecting wood. They apply

to detecting metal as well.

DETECTING AC VOLTAGE

1. Slide the Mode switch on the front panel (Callout B on p. 4) to the

AC WIRE position. The AC wire detection mode indicator arrow (Callout )

will illuminate.

2. Repeat Steps 2 through 5 in the “Detecting Wood Studs, Joists and

Frames” section on pages 6 and 7. As with wood and metal, you will first

calibrate the sensitivity of the MSV100’s induction circuit to the thickness

of the surface. The difference in AC voltage detection mode is that the

detector’s calibration also takes into account the distance to the live wire

from the back of the wall or ceiling.

t is not necessary to perform Steps 6 and 7 of the wood/metal detection

procedure because pinpointing the right edge of a thin voltage-bearing

wire or cable is sufficient to locate it.

3. Read the first two Notes below the procedure for detecting wood. They

apply to detecting voltage as well.

OPERATING & MAINTENANCE TIP

• The MSV100 requires a fully charged battery to function accurately. When

the battery becomes low on charge, the display icon will appear and

begin to blink continuously. To replace the battery, follow the instructions

on p. 6.

• To avoid affecting the operation of the MSV100, do not hold its upper half

in your hand. Hold the lower half of the instrument with one hand and keep

your other hand at least 6 inches away.

• The MSV100 will not detect DC circuits (doorbell and twisted-pair

telephone lines, for example) as live wires. t also cannot detect live AC

wires inside metal pipes or conduit.

• Walls covered with metallic wallpaper and drywall with aluminum foil

backing will prevent the MSV100 from detecting wood, metal or AC

voltage.

• Do not use the MSV100 near a strong electromagnetic field or in the

presence of high-frequency radiation.

• Remove the battery whenever you do not expect to use the MSV100 for an

extended period of time (months).

• Do not immerse or get water on the instrument. To clean its housing, use a

soft cloth.

PECIFICATION

Maximum Wall Thickness for Wood Detection: 3/4 in. (19mm)

Maximum Detection Range for ron or Copper Pipe: 1.5 in. (38mm)

Maximum Detection Range for AC Voltage: 2 in. (50mm)

Operating Temperature: 40° to 104°F (5° to 40°C)

Dimensions: 7.1 x 3.0 x 1.2 in. (180 x 75 x 30mm)

Weight: 7.3 oz. (207g)

Power Source: (1) “9V” Alkaline battery

Battery Life: 1 year normal use

WARRANTY INFORMATION

General Tools & nstruments’ (General’s) MSV100 3-in-1 Stud/Voltage/Metal

Detector 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.

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 & nstruments 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. n 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.

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 & nstruments

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.

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