Extech BR146 Operating Manual

User's Guide

Flexible Borescope

Model BR146

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 eyepie ce fo cus a llows the user to fin e tune for obje ct 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

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

STOP IMPORTANT:

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

Power 4 AA batteries
Weight: 1.15lb (0.52kg)
Carrying Case Dimensions: 17 x 13 x 4.5” (432mm x 330mm x 114mm)

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

2

BR146 V2.0 9/08