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12 

3.3 

Manual dilution calibration 

procedures 

Cannonball 3 instruments with dilution 
capability have five different manual 
calibration options in the Calibration 
Menu: FRESH AIR, O2 ZERO, SPAN 
CAL, DIL FRESH and DIL SPAN.

 

3.3.1  Fresh air calibration in dilution 
mode 

While in dilution mode, manual fresh air 
calibrations include calibrations with and 
without the dilution pump. 

To perform a fresh air calibration: 

1.  Enter the Calibration Menu. 

 

CALIBRATION MENU 

 

GAS VALUES 

SPAN CAL 

HISTORY O

2

 ZERO CAL 

DIL. SPAN 

FRESH AIR

 

DIL. FRESH 

REMINDER 

 EXIT 

 

 

2.  Use the navigation arrows to highlight 

FRESH AIR as shown above.  Press 
the MODE button to confirm the 
selection.   

 
 

Do Fresh Air Cal Now? 

 

YES

    NO 

 

 

 

 

 

 

 

3.  Press the MODE button with YES 

highlighted to begin the fresh air 
calibration. 

The dilution pump will be automatically 
disabled by the instrument during the first 
stage of the fresh air calibration. 

 
 

Fresh Air Calibration 

 

Please Wait….        14 

 

 

 

 

 

 

 

After the completion of the fresh air 
calibration without the dilution pump, the 

instrument will re-enable the dilution 
pump and automatically proceed to the 
fresh air calibration with the dilution 
pump. 

 
 

Fresh Air Calibration 

 

Please Wait….        29 

 

DILUTION PUMP ON 

 

 

 

↓

 

 
 

Fresh Air Calibration 

 

Completed 

 

 

 

 

 

 

 

3.3.2  O2 zero calibration in dilution 
mode 

In dilution mode, the O

2

 zero calibration 

includes two separate calibration 
routines.  The first calibration routine 
calibrates the oxygen sensor to zero with 
the dilution pump disabled.  The second 
routine enables the dilution pump and 
sets the O

2

 zero point for use with the 

dilution pump enabled. 

The O

2 

zero calibration adjustment in the 

Cannonball 3 should not be confused 
with the fresh air calibration adjustment 
of the oxygen sensor.  The O

2

 zero 

calibration adjustment is used to calibrate 
the oxygen sensor in an atmosphere 
containing no oxygen, while the fresh air 
calibration adjustment calibrates the 
oxygen sensor in an atmosphere 
containing 20.9% Oxygen. 

To perform the O

2

 zero calibration while 

in dilution mode: 

1.  Turn the Cannonball 3 on and wait at 

least three minutes to allow sensor 
readings to stabilize fully before 
initiating any calibration procedures. 

2.  Enter the Calibration Menu. 

Summary of Contents for Cannonball 3

Page 1: ...0 Dilution Manual Cannonball 3 Multi Gas Detector http www gastech com au 24 Baretta Rd Wangara Western Australia 6065 GasTech Australia Pty Ltd Fax 1800 999 903 Tel 1800 999 902 ...

Page 2: ...HERIC CONDITIONS IT IS ESSENTIAL THAT THE INSTRUCTIONS IN THIS MANUAL BE READ FULLY UNDERSTOOD AND FOLLOWED AVERTISSEMENT LIRE ATTENTIVEMENT LES INSTRUCTIONS AVANT DE METTRE EN MARCHE Cannonball 3 Operation Manual Version 1 10 Copyright 2005 by Biosystems Middletown Connecticut 06457 All rights reserved No page or part of this operation manual may be reproduced in any form without written permissi...

Page 3: ...n mode 12 3 3 2 O2 zero calibration in dilution mode 12 3 3 3 Manual span calibration in dilution mode 14 3 3 4 Dilution fresh air calibration 15 3 3 5 Dilution span calibration 16 Appendix A Calibration Frequency 18 Biosystems Standard Warranty Gas Detection Products 19 Signal Words The following signal words as defined by ANSI Z535 4 1998 are used in the Cannonball 3 Dilution and Reference Manua...

Page 4: ...ntration test gas determines that accuracy has been restored and the instrument is once again fit for use 7 Do not reset the calibration gas concentration unless you are using a calibration gas concentration that differs from the one that is normally supplied by Biosystems for use in calibrating the Cannonball 3 Customers are strongly urged to use only Biosystems calibration materials when calibra...

Page 5: ... the inert sample with a fresh air sample This method provides enough oxygen to the LEL sensor to allow it to respond to the combustible gas The Cannonball 3 s microprocessor then calculates the level of combustible gas in the sample by dividing the LEL sensor s response by the percentage of flow taken from the sample pump versus the amount of flow taken from dilution pump Note The Cannonball 3 mu...

Page 6: ...Enabling the dilution option Cannonball 3 instruments with dilution capability can be easily distinguished from those without by the current gas readings screen which will contain a separate line noting the status of the dilution pump in dilution capable instruments Note If the dilution pump status line does not appear in the current gas readings screen and a dilution pump has been installed in th...

Page 7: ... OFF Time 6 15 RT 1 04 1 Press the right and left navigation arrows simultaneously Release the buttons when prompted by the instrument If enabling the dilution pump the following screen will then be shown Turn Dilution Pump On YES NO 2 Press the MODE button with YES highlighted to enable the dilution pump Checking for Dilution Pump Setting O2 Alarms For Dilution Mode LOW CEIL O2 OFF 5 0 MODE Ackno...

Page 8: ...fy the current setting When the alarm adjustment is completed press the MODE button to enter the new setting CURRENT ALARM SETTINGS LOW CEIL O2 DIL OFF 6 0 Save Changes YES NO CANCEL 6 Press the MODE button with YES highlighted to save the new alarm settings 3 Calibration in dilution mode To ensure O2 sensor accuracy at levels approaching 0 0 Vol oxygen calibration procedures in dilution capable i...

Page 9: ...e the instrument is located in an area where the air is known to be fresh 4 Press the MODE button three times within two seconds This will wake up the instrument from normal operation and initiate the auto calibration sequence A screen will briefly display the message One Button Auto Calibration ONE BUTTON AUTO CALIBRATION The instrument will then proceed to the following screen and begin a 5 seco...

Page 10: ...he calibration balloon of all gas prior to inflation with calibration gas may result in inaccurate and potentially dangerous readings Make sure the calibration balloon is filled with the appropriate calibration gas before attempting to calibrate the Cannonball 3 Use of improper calibration gas or failure to nearly fill the calibration balloon may lead to inaccurate and potentially dangerous readin...

Page 11: ...Data Saving CO Sensor Data Saving H2S Sensor Data After shut down immediately remove all calibration fittings from the Cannonball 3 Press the MODE button to turn the instrument on and resume normal operation Note If the MODE button is pressed at any time prior to completion of the calibration the calibration procedure will be cancelled and the instrument will return to normal operation Wait at lea...

Page 12: ...f calibration gas during calibration it is necessary to purge the calibration balloon and refill it with new calibration gas between span adjustments In this case the display will indicate the type and concentration of the next cylinder of calibration gas to be applied If the initial span calibration covered above fails to calibrate the LEL sensor or any of the toxic sensors the Cannonball 3 will ...

Page 13: ...ut the dilution pump the instrument will re enable the dilution pump and automatically proceed to the fresh air calibration with the dilution pump Fresh Air Calibration Please Wait 29 DILUTION PUMP ON Fresh Air Calibration Completed 3 3 2 O2 zero calibration in dilution mode In dilution mode the O2 zero calibration includes two separate calibration routines The first calibration routine calibrates...

Page 14: ...annonball 3 Continue to allow gas from the calibration cylinder to fill the balloon while calibrating If using a demand flow regulator flow gas to the sensors O2 Sensor Reading 20 9 Press MODE to calibrate 6 The oxygen reading will drop immediately and should approach a reading of 0 0 The sensor should stabilize in approximately 2 minutes Press the MODE button once the oxygen reading stabilizes to...

Page 15: ...adings to stabilize fully before initiating the manual span calibration procedure 2 Enter the Calibration Menu CALIBRATION MENU GAS VALUES SPAN CAL HISTORY O2 ZERO CAL DIL SPAN FRESH AIR DIL FRESH REMINDER EXIT 3 Use the navigation arrows to highlight SPAN CAL and press the MODE button SPAN CALIBRATION LEL 0 CO 0 H2S 0 SO2 0 0 EXIT 4 Use the up and down navigation arrows to highlight the sensor th...

Page 16: ...t calibrations Failure to fully deflate the calibration balloon between calibrations may lead to inaccurate and potentially dangerous readings SPAN CALIBRATION LEL 0 CO 0 H2S 0 SO2 10 0 EXIT 8 When all sensors requiring calibration have been successfully calibrated use the navigation arrows to highlight EXIT and press the MODE button to exit and save the new calibration settings SAVE CHANGES YES N...

Page 17: ... sensor selection by pressing the MODE button DILUTION SPAN CALIBRATION LEL 0 CO 0 H2S 0 SO2 0 0 EXIT 5 Once the sensor type has been selected fill the calibration balloon with the appropriate calibration gas and connect the balloon assembly to the inlet coupling on the front of the Cannonball 3 or use a demand flow regulator to deliver the gas Make sure the regulator cylinder seating surfaces and...

Page 18: ...eflate the calibration balloon fully before filling it with new gas for subsequent calibrations Failure to fully deflate the calibration balloon between calibrations may lead to inaccurate and potentially dangerous readings DILUTION SPAN CALIBRATION LEL 0 CO 0 H2S 0 SO2 0 0 EXIT 8 Repeat steps 5 6 and 7 until all sensors have been calibrated When finished use the navigation arrows to highlight EXI...

Page 19: ...tems procedures closely follow these guidelines If your operating procedures do not permit daily checking of the sensors Biosystems recommends the following procedure to establish a safe and prudent accuracy check schedule for your Biosystems instruments 1 During a period of initial use of at least 10 days in the intended atmosphere check the sensor response daily to be sure there is nothing in th...

Page 20: ...e instrument is in service ToxiPro MultiPro 2 years from date of purchase ToxiLtd 2 years after activation or 2 years after the Must Be Activated By date whichever comes first Mighty Tox 90 days after activation or 90 days after the Must Be Activated By date whichever comes first Mighty Tox 2 Prorated credit is given towards repair or purchase of a new unit of the same type 0 6 months of use 100 c...

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