User Manual
Contents
1. 721 A EEN 7 09 AM Bl 1 Fini Combustible Gas Leak Detector Instruction Manual 721 manual_082208 qxd 11 11 2008 TABLE OF CONTENTS 7 09 AM ge 2 A INTRODUCTION A INTRODUCTION 1 Congratulations 2 Product Description SAFETY CONSIDERATIONS TECHNICAL DATA 1 Features and Benefits 2 Product Applications 3 Specifications MEASUREMENT TECHNIQUES 1 Controls and Functions 2 Step by Step Procedures ADDITIONAL FEATURES TROUBLE SHOOTING GUIDE MAINTENANCE 0 ee ACCESSORIES 1 Congratulations dnd 3 Thank you for purchasing TPI products The 721 is easy 3 to use and is built to last It is backed by a 3 year limit ed warranty Please remember to complete and return your product warranty registration card loge 4 2 Product Description The ergonomically designed 721 is a hand held com a 5 bustible gas leak detector It is capable of finding com 5 bustible gas leaks in pipes fittings regulators etc Additional features include the capability to display saagiks 6 LEL leak level in ppm and user adjustable alarm point 7 The 721 comes complete with the following accessories 9 Carrying Pouch A780 da Instruction Manual 12 Battery amp Sensor Installed amp Calibrated eae 15 Pee 15 sa 15 721 manual_082208 qxd 11 11 2008 7 092. AM ge 4 B SAFETY CONSIDERATIONS C TECHNICAL DATA WARNING Please follow manufacturers test 1 Features and Benefits A procedures whenever possible Do not place the Auto Zero Automatically sets the sensor to sensor cage located on the end of the gooseneck on hot or in hot locations zero at start up LEL Displays the percentage lower explosive GENERAL GUIDELINES limit LEL PPM Displays the amount of leakage in ALWAYS parts per million ppm e Turn your detector on in a clean air environment away Mute Mutes the speaker and earphone alarm from the test location e Inspect the sensor cage to ensure it is securely attached Zero Manually sets the sensor to zero Adjustable Alarm point can be set as required NEVER Alarm e Place the detector or sensor cage in or on a hot item Visual Alarm LED s located on the front and Alarm in the sensor cage tip Auto Off When enabled the 721 turns off after approximately 20 minutes to saves battery life Can be disabled 2 Product Applications Perform the following tests and or measurements with the 721 leak detector e Locate combustible gas leaks in joints and fittings e Determine Lower Explosive Limit percentage e Determine the combustible gas leak level in ppm parts per million EN a a 721 manual_082208 qxd 11 11 2008 7 09 AM 3 Specifications Leak Detection Sensitivity methane 10ppm Gases Detected partial listing Acetone Acetylene Alcohol A
3. cause the 721 to display sensor error and turn off Sensor cage containing Measurement Procedure the sensor and visual alarm indicator 1 Turn the 721 on by pressing the key The 721 will begin a 30 second countdown and wait will display During this countdown the sensor is being self tested and set to zero 2 After the countdown is complete the 721 will display 0 and a a Gooseneck tic rate will begin y 3 At this point the display mode can be selected Once the dis Display On Indicator play mode is selected the 721 will turn on in the same mode Earphone Jack Keypad mar CED each time unless changed If the display mode does not need to be changed proceed to step 8 Tick adjust wheel 4 To change the display mode press and hold the O key for approximately 3 seconds to enter menu mode The following will be displayed 5 Press the key to proceed to the display mode screen 721 manual_082208 qxd 11 11 2008 7 09 AM pe 10 Step by Step Procedures continued Step by Step Procedures continued 6 Depending on the last display mode selected one of the 7 Once the desired display mode is selected press the Ory following displays will be seen The display modes can be and the following display will be seen changed by using the oO key to cycle between them 8 Press the Ory again to exit menu mode and return to nor REAL mode will display leak levels in ppm parts per
4. million mal operation 9 Turn the thumbwheel on the side and set a consistent tic rate If necessary the BD key can be used to zero the display Enter the area and begin testing As a leak is found the tic rate will increase and depending on the display mode selected the con centration will be displayed on the LCD in ppm LEL or LEL will display leak levels in LEL Lower Explosive Limit stepped ppm 10 To locate the source of a leak use the thumbwheel to nullify the increase in tic rate and move along the pipe fitting etc being tested 11 Continue to nulify any increases in tic rate and move along the item being tested until the leak source is located Oppm ud ud under will display leaks in steps The steps are Oppm ud 500ppm ud 1000ppm ud 3000ppm ud 5000ppm ud 9999ppm 12 If the leak concentration is above the alarm level the alarm will sound and LED s located in the front panel and sensor cage will flash a 721 manual_082208 qxd 11 11 2008 7 09 AM pe 12 E Additional Features Additional Features continued Alarm Level Adjustment Auto Power Off The alarm level can be adjusted by performing the following steps The auto power off feature can be enabled or disabled as required 1 After the 721 has been turned on and has gone through the 1 After the 721 has been turned on and has gone through the warm up period press and hold the key for approximately warm up period press and ho
5. test to end then press the GD key Battery Indicator The battery indicator is located in the upper right corner of the display and monitors the condition of the battery lt Battery indi cator The battery indicator will show full capacity JHD half capacity CH one quarter capacity and replace C F Trouble Shooting Problem SENS ERR in display Tick rate inconsistent Weak LCD display Corrective Action Replace sensor Replace batteries sensor Replace Batteries G Maintenance Battery Replacement Depress the latch on the back housing and slide the cover down Replace batteries 2 x C alkaline and reattach the cover Sensor Replacement Turn the 721 off Turn the sensor cage counter clockwise and remove it Unplug the old sensor and discard Replace sensor and sensor cap Cleaning your 721 Use a mild detergent and slightly damp cloth to clean the surfaces of the 721 For factory service please return your 721 to TPI Attn Service 9615 SW Allen Blvd Suite 104 Beaverton OR 97005 H Accessories Replacement Sensor A739 Soft Pouch A780 Earphone A710 a 721 ene eee 7 09 AM ea 16 Test Products International Inc 9615 SW Allen Blvd Ste 104 Beaverton OR 97005 Tel 503 520 9197 Fax 503 520 1225 www tpi thevalueleader com Test Products International Ltd 342 Bronte Road South Unit 9 Milton Ontario Canada L9T5B7 Tel 905 693 8558 Fax 905 693 0888 4
6. ld the O for approximately 3 seconds to enter menu mode The following will be displayed 3 seconds to enter menu mode The following will be displayed 2 Press the key to proceed to the display mode screen 3 Press the key to proceed to the alarm adjustment screen 2 Press the reo key to enable ys or disable no the auto power The following will be displayed off feature 3 Press the key to proceed to the display mode screen Press the key to proceed to the alarm adjustment screen 5 Press the key to return to normal operation Display Backlight The backlight can be activated at any time as required 4 Press the key to increase the alarm level or the zero key After the 721 has been turned on and has gone through the warm up to decrease the alarm level The alarm can be adjusted from period press and hold the key for approximately 3 seconds to 100ppm to 5000ppm in increments of 100ppm Press the activate the backlight The backlight will remain on for approximately key when finished 20 seconds a E En 721 manual_082208 qxd 11 11 2008 7 09 AM pe 14 Additional Features continued Mute Function When the 721 encounters a gas concentration above the alarm set point the alarm will begin to sound Pressing the key will silence the alarm Zero Function If the 721 fails to auto zero the zero key can be used to zero the dis play Turn the 721 on in a clean air environment wait for the sensor
7. mmonia Benzene Butane Ethanol Ethylene Oxide Gasoline Hexane Hydrogen Methane Naphtha Natural Gas Paint Thinners Propane Solvents Display Type Dual display with backlight Display Modes Real ppm Leak Level stepped ppm LEL Ranges Real ppm 0 to 9999ppm Stepped ppm 0 500 1000 3000 5000 9999ppm LEL 0 to 19 9 Audible Leak Indication Adjustable tic rate via side thumb wheel Alarm Indication Visual and audible User adjustable alarm level Sensor Test and Zero Automatic at start up Goose Neck 16 long with visual alarm indicator in sensor housing Operating Temperature 32 to 122 0 to 50 Gooseneck Length 16 inches Battery Type C size Alkaline 2 Size 9 4 x 2 9 x 2 2 240mm x 74mm x 55mm Weight 1 Ib 454g ge 6 D MEASUREMENT TECHNIQUES 1 Controls and Functions Push Buttons Short Press Turns the 721 on Long Press 3 seconds Turns the 721 off Short Press Silences the alarm Long Press 3 seconds Activates Menu Mode Short Press Activates sensor zero Long Press 3 seconds Turns the backlight on and off Controls speed of tick rate 006 Thumb Wheel 721 manual_082208 qxd 11 11 2008 7 09 AM pe 8 D MEASUREMENT TECHNIQUES D MEASUREMENT TECHNIQUES 1 Controls and Functions continued 2 Step by Step Procedures Instrument Layout WARNING Turn the 721 in a clean air environment away from the test area Failure to do so may
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