Extech MC108 Operating Manual

User's Guide

Mini Microscope

Model MC108

Introduction

Congratulations on your purchase of this Extech Meter. This digital microscope with 7 to
27X optical magnification, 4X digital zoom, image capture and real time mode via the PC
USB interface, is ideal for quality control, engineering and hobbyist applications. Features
include rechargeable batteries, split screen comparison mode, light level adjustment, four
image processing modes and digital camera operation. This meter is shipped fully tested
and calibrated and, with proper use, will provide years of reliable service.

Safety

• The microscope is not-waterproof. Please keep it dry. Do not use in areas with high
humidity

• Use the microscope only within its operating temperature range: (23°F to 122°F / -5°C to
50°C) .

• Sudden varied temperatures changes may cloud the lens.

• Do not let the lens face directly into sunlight or intense light for an extended period of

time. Strong light can damage the light-sensitive electronic circuits.

• Avoid touching the lens.

• Caution! The white LEDs have strong luminosity. Avoid directly staring at them. The light

may damage your eyes.

• If the transparent protector in front of the lens contacts any toxic materials or
contaminated materials, remove the protector and disinfect it.

• Do not remove power/batteries when Microscope is on. Doing so may cause information
loss or circuit damage.

• To dispose of the battery, follow local regulations regarding lawful disposal of hazardous
materials.

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Operation

Power Supply

• The unit includes three Ni-MH rechargeable batteries.

• The unit can run from the batteries or from USB power when

the USB cable is connected to a PC or to the power adaptor.

• The Ni-MH batteries will recharge automatically when the

microscope is connected, with the USB cable, to a PC or to the
USB power adapter.

• When the recharger is in the power-off mode, the white LEDs will

flash twice every three seconds. If the recharger is in power-on
mode, the

• After completely charging in the power-off mode, the white LEDs will

flash once every three seconds. After completely charging in the
power-on mode, the

• Recharge Ni-MH batteries every few months, even if the system is

not used to maintain battery strength, this is suggested to extend battery longevity.

• For lengthy storage periods, remove batteries to prevent damage due to battery

leakage/ discharge.

• The unit may also use alkaline batteries. Do not mix battery types in use and do not

recharge alkaline batteries.

Powering the Unit

• Press the power button for 2 seconds and then enter the normal observation Mode.

The magnified images should now be shown on the screen.

• By placing the observed object below the aiming mark located on the back of the case,

the screen will display the observed image desired.

• You may adjust the transparent protector in front of the lens protector in order to

provide focus.

• Press the save button, or zoom wheel, to capture images for purposes of recording.

Controls

1. Optical zoom/focus

2. Aiming mark

3. Display

4. Zoom/ Snapshot

5. Return/Preview

6. Special effects/Up

7. Power

8. Tools

9. Brightness

10. Set/Save/Compare

11. Indicator

Optical Zoom/Focus dial

icon will be shown on screen.

icon will be shown on screen.

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