EZ40 V1.0 05/06

4

Maintenance

Caution! Storing in a damp environment will damage the sensor!

Battery Replacement

If the green READY LED flashes or does not illuminate, the batteries need

to be replaced. The battery compartment is located at the rear of the EZ40.

Replace the three “C” batteries by sliding the battery compartment door and

accessing the battery compartment. Ensure that the compartment cover is

securely fastened when finished.

Cleaning and Storage

Wipe the meter only with a damp cloth as needed. Do not apply abrasive,

solvents, or other cleaners to the surface of the meter or sensor. Store with the batteries

removed and avoid extreme temperature and humidity.

Specifications

Gases Detected

Natural Gas, Methane, Ethane, Propane, Butane, Acetone,

Alcohol, Ammonia, Gasoline, Jet Fuel, Hydrogen Sulfide,

Smoke, Industrial Solvents, Lacquer Thinner, Naphtha,

Carbon Monoxide (indication only, not to quantify),

Sensitivity

50 ppm methane

Sensor

Solid State

Alarm

Visual and Audible at minimum 10% LEL (40% max) for

Methane

Warm-up

Approx. 5 minute

Response Time

Less than 2 seconds (up to 40% LEL)

Duty Cycle

Intermittent

Power supply

3 x “C” 1.5V alkaline batteries

Battery life

Approx. 8 hours continuous use typical

Operating Temperature

32 to 122

Storage Temperature

-22 to 140

Operating Humidity

10 to 90% RH (non condensing)

Approvals

CE

Dimensions

8.7 x 2.83 x 1.8” (221 x 72 x 46mm); gooseneck 16” (40cm)

Weight

18.4oz (520g)

Calibration and Repair Services

Extech offers repair and calibration services for the products we sell. Extech also provides

NIST certification for most products. Call the Customer Service Department for information

on calibration services available for this product. Extech recommends that annual

calibrations be performed to verify meter performance and accuracy.