WARNING: Read and understand all instructions. Failure to follow all instructions
listed below may result in electric shock, fire and/or serious personal injury.
SAVE THESE INSTRUCTIONS
Safety Instructions
DANGER: Laser Radiation, avoid direct eye exposure, serious eye injury can result.
• Do not use optical tools such as a telescope or transit to view the laser
beam.
• Position the laser so unintentional eye contact will be avoided.
• Do not operate the laser around children or allow children to operate the
laser.
• Do not disassemble. Modifying the product in any way can increase the risk
of laser radiation.
WARNING: Use of controls or adjustments or performance of procedures other than those
specified in this manual may result in hazardous laser radiation exposure.
• Do not operate in explosive atmospheres, such as in the presence of flammable liquids,
gases, or dust.
• Use only with the specifically designated batteries. Use of any other batteries may create a
risk of fire.
• Store idle product out of reach of children and other untrained persons. Lasers are
dangerous in the hands of untrained users.
• Use only accessories that are recommended by the manufacturer for your model.
Accessories that may be suitable for one laser, may create a risk of injury when used on
another laser.
• Repairs and servicing MUST be performed by a qualified repair facility. Repairs performed
by unqualified personnel could result in serious injury.
• Do not remove or deface warning labels. Removing labels increases the risk of exposure
to radiation.
• For indoor use only.
• This product is intended for use in a temperature range of 41°F(5°C) - 104°F(40°C).
WARNING: Shock Hazard. Always turn off power when working near electrical wires.
Drilling into or touching live wires can result in severe injury or death.
CAUTION: Material thickness, type of material, moisture content, and other variables
can effect sensing results. The sensor may detect electric wiring or pipes in the same
manner that studs are detected depending on their location to the wall surface. Use
caution when drilling, nailing or cutting into walls, floors and ceilings which may contain
electrical wiring or pipes. These items may be detected by the Stud Sensor in the same
manner in which studs are detected. Because studs are normally spaced 16 inches (406
mm) or 24 inches (610 mm) apart and are usually 1-1/2 inches (38 mm) wide, beware of
anything closer together or of a different width.
Liquid Crystal Display (First Aid Measures)
• If liquid crystal comes in contact with your skin:
Wash area off completely with plenty of water. Remove contaminated clothing.
• If liquid crystal gets into your eye:
Flush the affected eye with clean water and then seek medical attention.
• If liquid crystal is swallowed:
Flush your mouth thoroughly with water. Drink large quantities of water and induce
vomiting. Then seek medical attention.
Label Symbols
The label on your tool may include the following symbols.
V ..........................volts mW......................milliwatts
nm ........................wavelength in nanometers IIIa ......................Class IIIa Laser
Installing the Battery
Ensure on/off switch (F) is in the full “OFF” position. Remove the battery compartment
cover (G) by pressing down on the center of the cover and pulling back. Insert a fresh 9 volt
battery making sure to match (+) and (-) terminals correctly. Replace the battery
compartment cover and securely snap into place.
WARNING: Batteries can explode, or leak, and can cause injury or fire. To reduce this
risk: • Carefully follow all instructions and warnings on the battery label and package.
• Always insert battery correctly with regard to polarity (+ and -), marked on
the battery and the equipment.
VEA EL ESPAÑOL EN LA CONTRAPORTADA.
SAVE THIS MANUAL FOR FUTURE REFERENCE.
INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA DE GARANTÍA.
ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES DE USAR EL PRODUCTO.
INSTRUCTION
MANUAL
Cat No. BDSM400 Form # 624048-01 (SEPT-04) Copyright © 2004 Black & Decker Printed in China
BEFORE RETURNING THIS PRODUCT
FOR ANY REASON PLEASE CALL
1-800-54-HOW-TO (544-6986)
IF YOU SHOULD EXPERIENCE A PROBLEM
WITH YOUR BLACK & DECKER PRODUCT,
CALL 1-800-54-HOW-TO (544-6986)
BEFORE YOU CALL, HAVE THE FOLLOWING INFORMATION AVAILABLE, CATALOG No., TYPE No., AND
DATE CODE (e.g. 20000130M). IN MOST CASES, A BLACK & DECKER REPRESENTATIVE CAN
RESOLVE YOUR PROBLEM OVER THE PHONE. IF YOU HAVE A SUGGESTION OR COMMENT, GIVE
US A CALL. YOUR FEEDBACK IS VITAL TO BLACK & DECKER.
FEATURES
B. Laser Pointer
C. LCD Screen
D. READ Buttons
E. Mode Detection Switch
F. On/Off Switch
G. Battery Compartment Cover
Catalog No. BDSM400
2
3
A
4
5
6
KEYPAD DESCRIPTION
H.) SET - Select measurement reference
from front or back of unit or at 90° to unit
I.) FT/M - Select feet / inches or metric
measuring unit
J.) RCL - Memory Recall
K.) (X) - Multiply
L.) (
+) - Add
M.) (
-) - Subtract
N.) STORE - Memory In
O.) (=) - Sum
B
G
H
I
J
L
K
F
E
D
C
D
M
N
7
O
9
10
11
1
8
For your convenience and safety, the
following labels are on your product.
Pour des raisons de commodités et de
sécurité, les étiquettes suivantes sont
apposées sur ce produit.
Para su conveniencia y seguridad, las
siguientes etiquetas están en su producto.
12
Battery Cautions Cont’d.
• Do not short battery terminals.
• Do not charge batteries.
• Remove dead battery immediately and dispose of per local codes.
• Do not dispose of batteries in fire.
• Keep batteries out of reach of children.
• Remove battery if the device will not be used for several months.
Transporting batteries can possibly cause fires if the battery terminals inadvertently come in
contact with conductive materials such as keys, coins, hand tools and the like. The US
Department of Transportation Hazardous Material Regulations (HMR) actually prohibit
transporting batteries in commerce or on airplanes (i.e. packed in suitcases and carryon
luggage) UNLESS they are properly protected from short circuits. So when transporting
individual batteries, make sure that the battery terminals are protected and well insulated from
materials that could contact them and cause a short circuit.
Weak Battery Indicator
The upper left portion of the LCD screen will display a low battery symbol (Figure 1) when a
weak battery is detected. As the battery continues to weaken, the low battery indicator and the
detection mode will no longer display on the screen.
Operating Instructions
Measuring Length
1.) Move slide switch (E) to DISTANCE MEASUREMENT position (far right)
2.) Slide the on/off switch to the “ON” position, press “READ” button taking one
measurement to activate the unit.
3.) Press the “FT/M” button to select feet / inch units or metric measurement units as shown
in Figure 2.
4.) Press the “SET” button (for obtaining true wall to wall distance) to select measurement
from the front edge of the unit, back edge of the unit or at 90° to the unit see Figure 3.
5.) Point the unit perpendicular to the target and and press the “READ” button located on
either side of the unit. Use the laser pointer to insure that the unit is pointed at the object
that you want to measure for distance.
6.) When the distance is out of the detection range (2 feet to 50 feet / 61cm to 15 meters)
the unit will beep and display “E” for error.
7.) When the distance is within the detection range, the unit will beep and display the
distance for 15 seconds.
8.) Slide the on/off switch to the “OFF” position to turn the unit off.
9.) For “Continuous Measurement” operation, press and hold the “READ” button and walk
toward or away from the point being measured.
Adding, Subtracting and Multiplying Measurements
Adding
1.) After taking first measurement (or recalling measurement from memory by pressing the
“RCL” button), press the “+” button as shown in Figure 4 to add distances. Take the sec-
ond measurement then press the “=” button to get the total.
Subtracting
2.) After taking first measurement (or recalling measurement from memory by pressing the
“RCL” button), press the “-” button as shown in Figure 5 to subtract distances. Take the
second measurement then press the “=” button to get the total.
Multiplying
3.) After taking first measurement (or recalling measurement from memory by pressing the
“RCL” button), press the “x” button as shown in Figure 6 to multiply distances or obtain
the Area (Square Footage). Take the second measurement then press the “=” button to
get the total area or press “x” again and “=” to take a third measurement and calculate
Volume (Cubic Feet).
Notes:
• When using unit at a 90° angle be sure to fully lock the measurer into the 90° position as
shown in Figure 7. Not having the measurer at a full 90° will result in an inaccurate reading.
• For accuracy purposes, avoid moving after pressing the read button until the distance is
displayed.
• The measured object must have a flat hard surface and be in an open space void of any
obstacles in the measurement path in order to obtain accurate results.
• Distance detection may be sometimes affected by the environment. To insure a correct
reading repeat the detection until you get at least two of the same readings within three attempts.
• The LCD screen will go blank after 15 seconds of inactivity.
• The measurer cannot measure distance through glass.
• The laser is used to locate where the tool is pointed and is only “ON” when a measurement is
being taken.
Laser
DANGER: Laser Radiation, avoid direct eye exposure.
Scanning
Stud Mode
For stud sensing through up to 3/4 inches (19mm) thick drywall.
1.) Move slide switch (E) to STUD position (far left). Slide the on/off switch (F) to the “ON”
position. Hold unit straight up and down and place flat against wall as shown in Figure 8.
Press in on either of the read buttons (D) and continue holding in button.
2.) The unit will beep once while it is calibrating and will display the stud symbol on the
LCD screen.
3.) Slide unit slowly, Figure 9, across surface of wall without lifting or tilting. When a stud is
detected the LCD screen will begin to display a row of black boxes , slow down
and keep sliding until the beep sounds as shown in Figure 10. Mark this spot at the
middle of the unit.
4.) Continue holding button in and scan beyond the marked spot until the row of black boxes
disappears. Without releasing button, reverse direction to locate the other edge of the
stud. When the unit beeps again mark the spot. Center of stud is between two marks.
Metal Mode
For metal sensing through up to 2 inches (50mm) thick drywall.
1.) Move slide switch (E) to METAL position (middle left). Hold unit in air away from metal
objects. Slide the on/off switch (F) to the “ON” position. Scan both horizontally and
vertically against wall as shown in Figure 11. Press in on either of the read buttons (D)
and continue holding in button.
2.) The unit will beep once while it is calibrating and will display the metal symbol on the
LCD screen.
3.) Slide unit slowly, across surface of wall without lifting or tilting. When a metal object is
detected the LCD screen will begin to display a row of black boxes , slow down and
keep sliding until the LCD screen displays a full row of boxes and the beep sounds as
shown in Figure 10. Mark this spot at the middle of the unit.
Note: Because metal pipes or objects can be oriented both vertically and
horizontally behind a wall, you should scan both vertically and horizontally as
shown in Figure 11.
AC Wire Mode
For AC Wire sensing through up to 2 inches (50mm) thick drywall.
1.) Move slide switch (E) to the AC WIRE position (middle right). Hold unit in air away from
any electrical wiring. Slide the on/off switch (F) to the “ON” position.
2.) The unit will beep once while it is calibrating and will display the electrical symbol on
the LCD screen.
3.) Slide unit slowly, across surface of wall without lifting or tilting as shown in Figure 12.
When an AC voltage is detected the LCD screen will begin to display a row of black
boxes , slow down and keep sliding until the LCD screen displays a full row of boxes
and the beep sounds. Mark this spot.
The sensor detects AC voltage and will identify only “live” wires. If the unit is calibrated close
to AC wire, it may decrease AC wiring sensor sensitivity. Static charge may spread detection
12 inch (30.4cm) on both sides of wire.
WARNING: Occasionally, pipes and electrical wiring may not be detected by this
product. Observe caution when cutting or drilling into areas that may contain concealed
pipes or wiring. The sensor will not detect live wires inside metal pipe or metal conduit,
behind metallic wall covering, or behind some plywood or other dense materials.
Use caution if area has plywood, thick wood backing behind drywall, or thicker than normal walls.
WARNING: Always turn off the power when working near electrical wires,
electric shock may result.
Storage
Always store this product indoors, in a clean, dry area out of the reach of children.
Specifications:
Detecting distance: Stud: 3/4 inches (19mm)
Metal: 2.0 inches (50mm)
AC Wire: 2.0 inches (50mm)
Distance: (2 feet ~ 50 feet) 61cm ~15M
Indicators: Audio / LCD screen
Distance Measurement Accuracy: +/- 0.5% +/- 1digit @ 10 feet
Power consumption: 70mA
Power source: 9V
Temperature: 41°F(5°C) - 104°F(40°C)
Maintenance
Use only mild soap and damp cloth to clean the tool. Never let any liquid get inside the tool;
never immerse any part of the tool into a liquid.
IMPORTANT: To assure product SAFETY and RELIABILITY, repairs, maintenance and
adjustment (other than those listed in this manual) should be performed by authorized service
centers or other qualified service organizations, always using identical replacement parts.
Accessories
Recommended accessories for use with your tool are available from your local dealer or
authorized service center. If you need assistance regarding accessories, please call:
1-800-54-HOW-TO (544-6986).
WARNING: The use of any accessory not recommended for use with this tool could be
hazardous.
FCC Warning
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 undesirable
operation.
Service Information
All Black & Decker Service Centers are staffed with trained personnel to provide customers
with efficient and reliable power tool service. Whether you need technical advice, repair, or
genuine factory replacement parts, contact the Black & Decker location nearest you. To find
your local service location, refer to the yellow page directory under "Tools—Electric" or call:
1-800-54-HOW TO. (544-6986)
Full Two-Year Home Use Warranty
Black & Decker (U.S.) Inc. warrants this product for two years against any defects in material
or workmanship. The defective product will be replaced or repaired at no charge in either of
two ways.
The first, which will result in exchanges only, is to return the product to the retailer from
whom it was purchased (provided that the store is a participating retailer). Returns should be
made within the time period of the retailer’s policy for exchanges (usually 30 to 90 days after
the sale). Proof of purchase may be required. Please check with the retailer for their specific
return policy regarding returns that are beyond the time set for exchanges.
The second option is to take or send the product (prepaid) to a Black & Decker owned or
authorized Service Center for repair or replacement at our option. Proof of purchase may be
required. Black & Decker owned and authorized Service Centers are listed under "Tools-
Electric" in the yellow pages of the phone directory.
This warranty does not apply to accessories. This warranty gives you specific legal rights
and you may have other rights which vary from state to state. Should you have any
questions, contact the manager of your nearest Black & Decker Service Center. This product
is not intended for commercial use.
FREE WARNING LABEL REPLACEMENT: If your warning labels become illegible or are
missing, call 1-800-544-6986 for a free replacement.
• Weak battery.
• Distance measurement
is less than 2 feet (0.6m)
or greater than 50 feet
(15m).
• Unit is not pointed
perpendicular to the
target.
• Objects or obstacles
could be in the
measurement path.
• Replace with fresh battery.
• Distance measured must be over
2 feet (0.6m) or under 50 feet
(15m).
• Point unit perpendicular to target.
• Move unit to an open space void
of any obstacles in the
measurement path.
• Distance measurement
is inaccurate or
inconsistent.
• Place a piece of cardboard in front
of surface. Measured object must
be a flat surface and be
perpendicular to the detector in
order to obtain an accurate result.
• Distance measured must be over
2 feet (0.6m) or under 50 feet
(15m).
• “E” displayed on LCD
screen.
• Measured object does
not have a good
reflective surface.
• Distance measurement
is less than 2 feet (0.6m)
or greater than 50 feet
(15m).
Possible Cause
• Weak battery.
• Nothing to detect in that
area.
• Check mode. May
have been calibrated
over a stud.
Solution
• Replace with fresh battery.
• Start again moving farther to either
side.
Problem
• LCD screen does not
illuminate
TT
TT
RR
RR
OO
OO
UU
UU
BB
BB
LL
LL
EE
EE
SS
SS
HH
HH
OO
OO
OO
OO
TT
TT
II
II
NN
NN
GG
GG
• Replace with fresh battery.
• If a switch controls an outlet, make
sure the it is ON for detection.
• You suspect electrical
wires, but do not detect
any.
• Weak battery.
• If wires are shielded
behind metallic wall
coverings, or in metal
conduit, the sensor will
not be able to detect
them.
• The wires may not be
“live”.
• Wires may be too deep
to sense.
• Use caution if area has
plywood, thick wood
backing behind drywall,
or thicker than normal
walls.
• Replace with fresh battery.
• Avoid calibrating over metal and
always calibrate in the air for best
sensitivity.
• Difficulty detecting
metal.
• Weak battery.
• Unit calibrated over
metal.
• Metal objects are too
deep.
See ‘Tools-Electric’
– Yellow Pages –
for Service & Sales
Imported by
Black & Decker (U.S.) Inc.,
701 E. Joppa Rd.
Towson, MD 21286 U.S.A.
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