EXTECH EZ40 EzFlex Combustible Gas Leak Detector User Manual

: June 13, 2024
: EXTECH

Table of Contents

Introduction
Description
Operation
Maintenance
Specifications
Two-year Warranty
Calibration and Repair Services
Contact Customer Support
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

EXTECH EZ40 EzFlex Combustible Gas Leak Detector User Manual

EXTECH EZ40 EzFlex Combustible Gas Leak Detector User
Manual

Introduction

Congratulations on your purchase of the Extech EZ40 Combustible Gas Leak Detector. The EZ40 detects the presence of combustible gas and nuisance vapours (Natural Gas, Methane, Ethane, Propane, Butane, Acetone, Alcohol, Ammonia, Steam, Gasoline, Jet Fuel, Hydrogen Sulfidic, Smoke, Industrial Solvents, Lacquer Thinner, Naphtha) in concentrations as low as 10% LEL for Methane and alerts the user with audible and visual alarms. The 16″ (406mm) flexible gooseneck provides easy access in difficult to reach locations. This meter is shipped fully tested and calibrated and with proper use will provide years of reliable service.

Description

Probe clip
Sensor tip guard & sensor
Alarm light
Ready light (Power-on)
On/Off slide switch
Earphone jack
Tick rate (sensitivity) adjustment
Note: Battery compartment is on rear of unit

EXTECH EZ40 EzFlex Combustible Gas Leak Detector User Manual - Product
Overview

Operation

⚠ WARNING! Always turn the meter on in an atmosphere free of combustible gas. Read and understand this manual before using the meter. Do not replace the batteries in an explosive atmosphere. Frequently check meter operation using an unlit gas burner or lighter

Warm-up

In a gas free atmosphere, slide the ON/OFF switch to the right to power on the detector.
Hold the EZ40 in the clean ambient air during its 5 minute (typical) warm-up, self-zero cycle.
Some intermittent ticking and warbling alarm tones may be experienced for a short time as the meter warms up.
The alarm will slowly decrease and a steady ticking rate will indicate that the EZ40 ready for use. If the meter is in an area where combustible gas is present, the alarm may not decrease.
Note: Warm-up time will vary depending on when the last time the meter was used.

Zero The EZ40 will automatically zero itself on activation. If the sensor was overexposed, the EZ40 will enter into an automatic cycle to reset. In this instance, the unit will alarm at peak level and decrease to zero.

Earphone Jack In an area with high levels of background noise, an earphone can be plugged in to the EZ40. In addition, the speaker is disabled when an earphone is connected so the ticking and alarm will not disturb others in the general area.
Caution: Tick and alarm sounds through the earphone are very loud.

% LEL, a definition: The LEL of a flammable gas is the minimum concentration of that gas, at normal ambient conditions, at which it will burn if there is a source of ignition present. At a concentration below the LEL, the gas will not burn. Gas detectors for flammable gases are calibrated in the range 0-100% LEL

Leak Detection

Adjust the sensitivity to establish a slow constant tick rate
Trace the sensor around the source of the suspected leak. When leaking gas is detected the tick rate will increase.
If the level of gas is approximately at 10% LEL of Methane, the Alarm LED will blink and the warbling tone will increase in pitch with increasing gas concentration.
In areas of high gas concentration, the tick rate can be readjusted to pinpoint the location of the leak.
Turn the sensitivity dial counterclokwise to reset the tick to a lower rate. 6. The tick will increase as you get closer to the source of the leak.

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.
Safety: Please dispose of batteries responsibly; never dispose of batteries in a fire, batteries may explode or leak. If the meter is not to be used for 60 days or more, remove the battery and store separately.

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

EXTECH EZ40 EzFlex Combustible Gas Leak Detector User Manual -
Specifications

Two-year Warranty

Teledyne FLIR LLC warrants this Extech brand instrument to be free of defects in parts and workmanship for two years from date of shipment (a six-month limited warranty applies to sensors and cables). To view the full warranty text please visit: http://www.extech.com/support/warranties.

Calibration and Repair Services

Teledyne FLIR LLC offers calibration and repair services for the Extech brand products we sell. We offer NIST traceable calibration for most of our products. Contact us for information on calibration and repair availability, refer to the contact information below. Annual calibrations should be performed to verify meter performance and accuracy. Product specifications are subject to change without notice. Please visit our website for the most up-to- date product information: www.extech.com.