Extech FG100 - Manual

FG100-en-US v2.2 7/14

User's Guide

Model FG100

Gas Leak Detector

Introduction

Congratulations on your purchase of the Extech FG100 Gas Leak Detector. The FG100
detects the presence of propane or natural gases. Careful use of this detector will provide
years of reliable service.

Description

Specifications

Measurement ranges

Propane: 500 to 6500 ppm; Natural gas: 1000 to 6500 ppm

Power

2 x ‘AAA’ 1.5V batteries; 200mA consumption; 4 hour battery life

Operating conditions

50 to 122

o

F (10 to 50

o

C); < 95% RH non-condensing

Storage conditions

41 to 131

o

F (5 to 55

o

C); < 95% RH (non condensing)

Dimensions

7.1” Length; 0.8”: diameter” (180mm length; 21mm diameter)

Weight

1.6 oz (46g)

Application

This device can be used to detect gas leaks from small liquid gas containers such as camping
cartridges, lighters, soldering torches, etc. This device is not suitable for continuous operation,
industrial use, or complex systems such as heaters and ovens.

Safety



Do not get the sensor wet. Avoid extreme dampness



Do not expose the device to high temperature, high humidity, or strong vibration



Avoid mechanical stress to the device. Do not touch the sensor



Clean with a soft, dry cloth or brush. Do not use liquid, abrasives, solvents, etc.

Battery Installation/Replacement

When the status indicators fail to light with the ON-OFF switch in the ON position, replace the
two (2) ‘AAA’ batteries. Slide the battery compartment cover off (rear of the detector) to access
the batteries. Replace the batteries observing polarity and close the compartment. Remove the
batteries if the detector is to be stored for long periods of time.

Operation

Static Electricity

The metal conductor protruding from the back of the detector is used for static tests. Before
detecting a leak (and at a safe distance from the testing area), touch the conductor with one
hand and, at the same time with the other hand, touch an earth grounded metal object such as a
heater or cold water pipe. If the user is statically discharged, the yellow indicator will light for a
short period. If there are strong charges present, gas detection measurements should not be
taken since discharges could ignite leaking gas.

Leak Detection

1. Remove the protective sensor cap.
2. Slide the ON/OFF switch to the ON position. The Red indicator will light and the audible tone

will sound for a short period of time and then the Green indicator will light.

3. Perform the static electricity test.
4. Trace the sensor around the source of the suspected leak.

Indicators



Yellow

used for static electricity tests.



Red

lights when gas is detected (along with an audible beep).



Green

lights in clean ambient air

When Gas is Detected

When a leak is detected, the red indicator will light and an audible tone will sound. Open all
doors and windows. Avoid open fire and sparks, leave the room, and do not operate any
electrical switches (light switches, etc.). If possible, turn off the gas supply. When the
concentration of gas falls below detectable limits, the red indicator and audible tone will no longer
activate when tests are taken. Note that false alarms are possible due to the presence of aerosol
sprays, tobacco smoke, etc.

Testing the Gas Leak Detector

Hold a gas lighter close to the sensor and allow the unlit lighter to leak a small amount of gas. If
the detector is working correctly, the red indicator will light and the audible tone will sound. If the
light and sound do not activate, the batteries may be weak or the unit is defective.

Note on Liquefied Gases

Liquefied gases are heavier than air and therefore settle on the floor. For this reason, the highest
concentration of gas is close to the ground.

Warranty

 

FLIR

 

Systems,

 

Inc.

 

warrants

 

this

 

Extech

 

Instruments

 

brand

 

device

 

to

 

be

 

free

 

of

 

defects

 

in

 

parts

 

and

 

workmanship

 

for

 

one

 

year

 

from

 

date

 

of

 

shipment

 

(a

 

six

 

month

 

limited

 

warranty

 

applies

 

to

 

sensors

 

and

 

cables).

 

If

 

it

 

should

 

become

 

necessary

 

to

 

return

 

the

 

instrument

 

for

 

service

 

during

 

or

 

beyond

 

the

 

warranty

 

period,

 

contact

 

the

 

Customer

 

Service

 

Department

 

for

 

authorization.

 

Visit

 

the

 

website

 

www.extech.com

 

for

 

contact

 

information.

 

A

 

Return

 

Authorization

 

(RA)

 

number

 

must

 

be

 

issued

 

before

 

any

 

product

 

is

 

returned.

 

The

 

sender

 

is

 

responsible

 

for

 

shipping

 

charges,

 

freight,

 

insurance

 

and

 

proper

 

packaging

 

to

 

prevent

 

damage

 

in

 

transit.

 

This

 

warranty

 

does

 

not

 

apply

 

to

 

defects

 

resulting

 

from

 

action

 

of

 

the

 

user

 

such

 

as

 

misuse,

 

improper

 

wiring,

 

operation

 

outside

 

of

 

specification,

 

improper

 

maintenance

 

or

 

repair,

 

or

 

unauthorized

 

modification.

 

FLIR

 

Systems,

 

Inc.

 

specifically

 

disclaims

 

any

 

implied

 

warranties

 

or

 

merchantability

 

or

 

fitness

 

for

 

a

 

specific

 

purpose

 

and

 

will

 

not

 

be

 

liable

 

for

 

any

 

direct,

 

indirect,

 

incidental

 

or

 

consequential

 

damages.

 

FLIR’s

 

total

 

liability

 

is

 

limited

 

to

 

repair

 

or

 

replacement

 

of

 

the

 

product.

 

The

 

warranty

 

set

 

forth

 

above

 

is

 

inclusive

 

and

 

no

 

other

 

warranty,

 

whether

 

written

 

or

 

oral,

 

is

 

expressed

 

or

 

implied.

 

 
 

Copyright

 

©

 

2014

 

FLIR

 

Systems,

 

Inc.

 

All

 

rights

 

reserved

 

including

 

the

 

right

 

of

 

reproduction

 

in

 

whole

 

or

 

in

 

part

 

in

 

any

 

form

 

www.extech.com