Service
• Diagnostic instrument service must be performed
only by qualified repair personnel. Service or main-
tenance performed by unqualified repair personnel
could result in injury.
• When servicing a tool, use only identical replace-
ment parts. Follow instructions in the Maintenance
Section of this manual. Use of unauthorized parts or
failure to follow maintenance instructions may create a
risk of electrical shock or injury.
• Follow instructions for changing accessories.
Accidents are caused by poorly maintained tools.
• Provide proper cleaning. Remove battery before
cleaning. Do not use liquid cleaners or aerosol clean-
ers. Use a damp cloth for cleaning.
• Conduct a safety check. Upon completion of any ser-
vice or repair of this product, ask the service technician
to perform safety checks to determine that the product
is in proper operating condition.
• Damage to the product that requires service. Refer
servicing to qualified service personnel under any of
the following conditions:
• If liquid has been spilled or objects have fallen into
product;
• If product does not operate normally by following the
operating instructions;
• If the product has been dropped or damaged in
any way;
• When the product exhibits a distinct change in per-
formance.
CAUTION
Remove batteries entirely before shipping.
If you have any questions regarding the service or repair
of this machine, call or write to:
Ridge Tool Company
Technical Service Department
400 Clark Street
Elyria, Ohio 44035-6001
Tel: (800) 519-3456
E-mail: TechServices@ridgid.com
On the Web: www.ridgid.com
In any correspondence, please give all the information
shown on the nameplate of your tool including model
number and serial number.
Specific Safety Information
Read this operator's manual carefully before using
the SR-20. Failure to understand and follow the
contents of this manual may result in electrical
shock, fire and/or severe personal injury.
Call the Ridge Tool Company, Technical Service De-
partment at (800) 519-3456 if you have any questions.
Important Notice
The SR-20 is a diagnostic tool that senses electromag-
netic fields emitted by objects underground. It is meant
to aide the user in locating these objects by recognizing
characteristics of the field lines and displaying them on
the screen. As electromagnetic field lines can be dis-
torted and interfered with, it is important to verify the lo-
cation of underground objects before digging.
Several utilities may be underground in the same
area. Be sure to follow local guidelines and one-
call service procedures.
Exposing the utility is the only way to verify its ex-
istence, location, and depth.
Ridge Tool Co., its affiliates and suppliers, will not be
liable for any injury or any direct, indirect, incidental
or consequential damages sustained or incurred
by reason of the use of the SR-20.
Specifications and
Standard Equipment
Specifications
Weight w/batteries.........4 lbs. (1.8 kg.)
Weight w/o batteries......3.3 lbs. (1.5 kg.)
Dimensions:
Length ...........................11.2" (28.4 cm.)
Width .............................4.3" (1.3 cm.)
Height ............................31.1" (78.9 cm.)
Power Source................4 C-size batteries, 1.5V
Power Rating:................6V, 550mA
Signal Strength..............Non-linear in function. 2000 is
Ridge Tool Company
SeekTech SR-20
WARNING
Alkaline (ANSI/NEDA 14A,
IEC LR14) or 1.2V NiMH or
NiCad rechargeable batteries
10x higher than 1000, 3000 is
10x higher then 2000, etc.
3