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Rev. 2.0 

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6.  Contact Us 
 
 

 

By Telephone: 
For technical or operational questions about Pocket CO, you may 
contact the Transducer Technology Division of KWJ Engineering 
directly at: (510) 791-0951. 
 
For other questions, or sales information, you may call our toll-
free customer service line at (877) 794-4296. 
 
Both phone numbers are answered between the hours of 7:00 
a.m. and 5:00 p.m., Pacific Time. 
 
By Email: 

Support: [email protected] 
 
Sales: [email protected] 

 
On the Web: 
 

http://www.kwjengineering.com 

 
By Mail: 

Transducer Technology Division 

KWJ Engineering 

8440 Central Ave. Suite # 2D 

Newark, CA  94560 

 

 

 

 

 

 

 

Summary of Contents for Pocket CO 300

Page 1: ...enough to be transported in your pocket However Pocket CO should not be operated while in your pocket To detect CO Pocket CO must be well exposed to your surrounding environment e g on your key chain attached to your dashboard or uniform or worn around your neck In the beginning of 2007 the manufacturer of Pocket CO Transducer Technology Inc was merged into KWJ Engineering Inc The two companies ha...

Page 2: ... Backlight 6 3 4 Viewing Dosimetry Information 6 3 5 Understanding Alarms 6 3 6 Understanding Dosimetry TWA Warnings 9 3 7 Replacing the Battery 11 3 8 Using the Menu 13 3 9 Calibration 14 3 10 Additional Usage Information 15 4 Glossary of Terms 16 5 Care and Maintenance 17 6 Contact Us 18 7 Warranty 19 8 CO Health Effects Inside back cover ...

Page 3: ... 125 PPM CO should be avoided Seek clean air ventilation or any other means to eliminate exposure Get more information online at http www kwjengineering com and at http www detectcarbonmonoxide com Pocket CO Model 300 is a stand alone unit and because of its small size can be carried on a key ring clipped to a worker s shirt pocket or attached to the dashboard of a vehicle or piece of equipment Po...

Page 4: ...ed Low battery warning BATT displayed Sampling method Gaseous diffusion Interferences None significant except hydrogen Periods of Operation 12 Hour and Always On Display Digital LCD with backlight in increments of 1 ppm User interface Single button operation Dosimetry 12 Hour Detection period only Calculates and records MAX maximum exposure ppm TIME time of max exposure minutes since turned on TE ...

Page 5: ...Rev 2 0 4 Display with backlight Buzzer Button Red LED Alarm Rear entry holes for gas Do not block Screw for battery compartment cover Side entry holes for gas Do not block ...

Page 6: ...twice The display will show ON The instrument will perform a brief self test and then show the current CO reading PPM The display will update with a new reading of CO every 5 seconds and will continue to do so until turned off by the user This mode is useful if protection from CO is required over a prolonged period of time such as on a trip or long drive Note that dosimetry information is not reco...

Page 7: ...ing time RUN in minutes Pocket CO will save this information until Detection Mode is entered again For a more detailed discussion of TE and TWA see Section 3 6 To view the dosimetry information during normal operation quickly push and release the button two times the backlight will turn on after the first push The dosimetry information will be displayed after a moment starting with the word DOSM A...

Page 8: ...ed to repeatedly pulse all of these alarms when the CO exposure reaches or exceeds certain limits These limits are pre programmed at the following levels CO level between 50 PPM and 124 PPM Alarm beeper LED Vibrator pulse once every 20 seconds CO level between 125 PPM and 399 PPM Alarm beeper LED Vibrator pulse once every 10 seconds CO level exposure at or above 400 PPM Alarm beeper LED Vibrator p...

Page 9: ...an be found and addressed The 50ppm is an optional low concentration alarm which can be disabled using the Menu see Section 3 8 The Pocket CO will also pulse its alarms during the following non CO related situations Self Test One alarm pulse is normal and expected during the Self Test Temperature above 50o C 122o F or below 0o C 32o F Alarm pulses plus HOT or COLD on the display Sensor Malfunction...

Page 10: ...ere exposed to 25ppm for 5 hours and then 10 ppm for 1 hour your Total Exposure would be Total Exposure 25ppm x 5 hours 10ppm x 1 hour 135 ppm hours Time Weighted Average exposure TWA gives you an idea of how much CO on average you ve been exposed to and is calculated as follows TWA Total Exposure to CO in ppm hrs 8 hours Example If your total exposure was 135 ppm hours as in the first example you...

Page 11: ...g if your current TWA puts you on track for exceeding this limit in 8 hours This warning consists of 2 pulses of the alarm along with the messages WARN TWA shown on the display Table 1 summarizes these warnings Hours Since Turned On Warning if TWA Exceeds This Value 1 3 1 ppm 2 6 2 ppm 3 9 3 ppm 4 12 5 ppm 5 15 6 ppm 6 18 7 ppm 7 21 8 ppm 8 or more 25 ppm Table 1 Hourly TWA Warnings Note that when...

Page 12: ... CO will let you know that the battery is weak by either Displaying BATT during the Self Test Sounding the alarm and displaying BATT for several seconds during normal operation When you see the BATT warning you have some time left before the battery dies but you should take action soon to replace the battery When the battery becomes too low for Pocket CO to operate Pocket CO will display The batte...

Page 13: ... 6 Replace cover as shown Cover will snap into place Replace screw Figure 1 Replacing the Battery Note that immediately after replacing the battery the display may show SNSR or high levels of CO This is a normal effect and the instrument will again function normally after several minutes When changing the battery always check the inside of the battery cover to see when the next calibration due dat...

Page 14: ...the name of the item and the current setting as summarized in Table 2 Menu Item Display Shows Value 1 Value 2 Value 3 1 Vibrator VIBR ON Vibrator On OFF Vibrator Off N A 2 Buzzer Sound BUZZ BZ 1 3 loud beeps BZ 2 Combination low high pitch BZ 3 3 soft beeps 3 50 PPM Alarm A 50 ON 50 PPM Alarm On OFF 50 PPM Alarm Off N A Table 2 Menu items and values available in the Pocket CO menu To change the va...

Page 15: ...attery cover indicates the date of the next recommended calibration Check this date every time you change the battery and replace this sticker if you perform a calibration yourself Calibration can be performed through our mail in calibration service or by ordering a home calibration kit The home calibration kit is safe easy to use and comes with simple instructions Information on this kit and our ...

Page 16: ...organic vapors such as fumes from paints solvents or alcohol a small amount of sensor drift above 0 ppm may occur even when no CO is present If this is observed relocate your Pocket CO to an area known to be free of these vapors and of CO until the reading returns to 0 ppm Depending on the length of the exposure this may take from minutes to days If the reading does not return to 0 ppm within 5 da...

Page 17: ...ured during use TIME Time in minutes when the maximum CO level occurred after turning on RUN Total time in minutes that has elapsed since turning on HIGH Concentration is above maximum measurement of 500ppm EXCD Shown if TE has exceeded 9 999 ppm hrs if TIME has exceeded 9 999 minutes or if RUN has exceeded 9 999 minutes HOT Temperature is more than 50o C 122o F COLD Temperature is less than 0o C ...

Page 18: ...optimum lifetime and use keep the device away from extremes in temperature and humidity and store it in a clean place away from solvents chemicals disinfectants pesticides and cleaners For maximum lifetime of electronics and sensors store and operate in moderate environmental conditions such as temperatures between 40 80o F 4 27o C RH between 40 85 and atmospheric pressure It is recommended that y...

Page 19: ...uestions or sales information you may call our toll free customer service line at 877 794 4296 Both phone numbers are answered between the hours of 7 00 a m and 5 00 p m Pacific Time By Email Support pocket_support kwjengineering com Sales sales kwjengineering com On the Web http www kwjengineering com By Mail Transducer Technology Division KWJ Engineering 8440 Central Ave Suite 2D Newark CA 94560...

Page 20: ... or unauthorized repairs KWJ Engineering may elect to replace the unit at no extra cost with the same or a similar unit rather than repair it KWJ guarantees many years of use from your Pocket CO We also offer a discounted replacement Pocket CO should you damage your instrument such that it can no longer be used If a defect covered by this warranty should occur promptly return the product at your e...

Page 21: ... from sources like gas powered furnaces and water heaters portable generators clogged fireplaces and chimneys cars running in an attached garage and burning of fuels indoors such as a gas or charcoal grill Travelers staying in hotels are in danger from CO leaked into their room from nearby faulty heaters and boilers Campers RV ers and trailer owners are at risk from gas heaters or stoves left runn...

Page 22: ...1 2 hours 125 PPM Second Pocket CO ALARM starts every 10 seconds 200 PPM Dizziness naseau fagitue headache after 2 3 hours of exposure 400 PPM Headache and nausea after 1 2 hours of exposure Life threatening in 3 hours Third Pocket CO ALARM starts every 5 seconds 800 PPM Headache nausea and dizziness after 45 minutes collapse and unconsciousness after 1 hour of exposure Death within 2 3 hours 1000...

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