BR146 V2.0 9/08

2

Introduction

Congratulations on your purchase of the Extech BR146. This product is used for

inspection of areas generally inaccessible to the naked eye, such as internal inspection

of engines, gear train components, interior structures of walls, and industrial applications.

Illumination is provided by two solid state LEDs which are controlled by a three position

switch, giving low, off, and high output. Lighting is powered by 4 “AA” batteries located in

the handle. The adjustable eyepiece focus allows the user to fine tune for object distance.

The scope comes in a protective case for storage. An accessory mirror allows the user

to see 90 degrees to the axis of the shaft. The Magnet accessory will pick up approx 1/4

lb. This device is shipped fully tested and, with proper use, will provide years of reliable

service

Safety

STOP IMPORTANT:

PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE

OPERATIONAL REQUIREMENTS, WARNINGS AND CAUTIONS. USE THIS

PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT

IS INTENDED. FAILURE TO DO SO COULD CAUSE DAMAGE AND/OR

PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. PLEASE KEEP

THESE INSTRUCTIONS FOR FUTURE USE.

•

DO NOT use flexible inspection scope if damaged

•

Do not point the tip toward the Sun or other intense source of light while viewing.

Permanent eye damage may occur.

•

Maintain your scope in new condition as detailed in MAINTENANCE for long service

•

Be aware of your surrounding environment while using your inspection scope

•

Account for all tools and parts being used or serviced and do not leave loose parts

near moving parts of an engine

Specifications

Viewing distance:

0.4”(10mm) to infinity

Viewing Angle

48°

Side View Adaptor:

90°

Tip Diameter

0.39” (10mm)

Working Length:

46” (1168mm)

Maximum bend radius

3” (7.62cm)

Optical system:

fiber optic (7400 fibers)

Illumination

LED (2) (High/Low intensity selection)

Max probe temperature

158°F / 70°C

Shaft material

HDPF

Housing material

Nylon

Compatibility

Water, diesel, gasoline, brake

fluid, antifreeze, motor oil, gear oil and other liquids

Power

4 AA batteries

Weight:

1.15lb (0.52kg)

Carrying Case Dimensions:

17 x 13 x 4.5” (432mm x 330mm x 114mm)