Extech EM100 Operating Manual

User's Guide

Energy Logger

Model EM100

Introduction

Congratulations on your purchase of the Extech EM100 Energy Logger. The EM100
monitors and displays the cost of powering loads such as household appliances, power
tools, industrial machinery, and many other types of electrical and electronic equipment.
The EM100 Energy Logger has been EMV-tested for safety and corresponds with the
requirements of valid European and national guidelines.

In order to maintain the integrity of this instrument and to ensure safe operation, please
read and follow the instructions in this operating manual. This instrument is shipped fully
tested and calibrated and, with proper use, will provide years of reliable service.

Proper Use

The measurement range of the EM100 Energy Logger is 1.5W to 1400W. Measurements
outside this range should be considered unreliable; if the instrument is over-loaded,
instrument damage may result.

The EM100 Energy Logger can monitor and measure electrical loads. Although the EM100
Energy Logger is very accurate, it is not officially certified for usage by power companies
and users for measuring power expenditures.

- The EM100 Energy Logger is certified for 120V AC 50/60 Hz operation only

- Only power loads with a power supply of 120V AC 50/60 Hz may be connected

- The maximum power of any connected load may not exceed 1400W (max. current
12A)

- Operation of the EM100 Energy Logger is permitted in dry, interior spaces only. This
device must not be used outdoors

- Always observe the declarations on the identification labels of connected power loads

Uses other than the ones described in this manual may lead to product damage and are
associated with hazards such as short circuits, fire, electric shock, etc. The instrument
must not be converted or modified in any way. Strictly observe the safety instructions in the
following section.

Caution! Exceeding 1400W (12A) will damage the device

Caution! For use on 120V 50/60Hz power lines. Do not use converters to adapt the

device for 220/240 power lines

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EM100 V2.0 07/09

Safety Information

Extech Instruments does not assume any liability for damages to items or persons caused
by improper handling or non-compliance with the safety notices. Any warranty claim will
become null and void in such cases.

• Do not bypass the conductive ground wire; this can pose a lethal hazard in the event

of a malfunction

• Keep this device out of the hands of children

• Only connect the EM100 Energy Logger to certified protected contact outlets (120V

AC 50/60 Hz) that include a ground connection

• The connected load may not exceed 1400W (12A)

• The recommended operating temperature range is 50 to 122°F (10 to 50°C). High

temperature, especially occurring during the measurement of high power loads, can
lead to overheating and permanent instrument damage

• Avoid operating this instrument near flammable gases, vapors and dust

• Never operate this instrument when it is wet or in a damp environment

• When cleaning or servicing the instrument, disconnect it from any source of voltage.

Note that capacitors in the device may still be charged even if the device is
disconnected from all voltage sources

• In schools, training facilities, hobby and work-shops, qualified personnel must

supervise the operation of this instrument

• In commercial institutions, observe the accident prevention regulations of the

commercial trade organization for electric installations

• Do not insert any objects into this device

Meter Description

1. 120V socket

2. LCD Display

3. MIN/▼ button

4. MAX/▲button

5. MODE button

6. SD Card Slot

7. ►button

8. 120V plug

9. Battery compartment

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EM100 V2.0 07/09