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5

Inspecting the Toggle Switch

After several years of use, the gray rubber seal around the ON/OFF toggle switch may crack, tear, or otherwise 
lose its ability to properly seal the switch. If this happens, water may enter the unit, potentially doing 
permanent damage. Examine this seal regularly for any signs of splitting, tearing, or incomplete sealing 
around the toggle lever when it is moved to the two extremes. If such damage is noticed, the unit should be 
immediately returned to NK.

Battery Life 

The life of your battery depends upon many things: the age of the battery pack, the volume and used by the 
coxswain and the extent of charge. Here are some performance guidelines that should help you plan your 
Cox-Box use.

•  A fully charged battery will power a Cox-Box with NO audio (volume turned all the way down) for 16 hours.

•  With the volume turned all the way up, the battery can supply power for 50 minutes of continuous talk.

•  Therefore, with an average volume setting and a coxswain talking less than half the time, a fully charged 

Cox-Box will provide at least two to three hours of power, and usually more.

•  Having the Coxswain turn the volume down as low as possible will help prolong the battery life.

•  A fully drained Cox-Box battery requires 12 hours on charge to attain maximum capacity. 

•  It is not necessary to try to discharge the Cox-Box batteries fully between charging — there is virtually no 

memory effect in modern nickel cadmium batteries.

•  If your Cox-Box unit is more than three years old, the battery performance will decrease. Simply return the 

unit to NK for a new battery replacement. If you would like to determine the age and/or repair history of a unit, 
please send an e-mail to [email protected]

Avoid overcharging your Cox-Box. NK chargers are current-limiting and help prevent battery damage from 
overcharging. However, leaving the unit plugged in for many days or weeks (past full charge) may still cause 
damage. Please be sure to unplug and store your units during your off season breaks.

TROUBLESHOOTING

A Cox-Box system consists of four major components: the Cox-Box unit, the microphone, the wiring and the 
speakers. All of these components must function for your system to work properly. If you are having a problem 
with your system, the best diagnostic tool is to swap out each component, one at a time, with a working 
component. When the problem disappears, you know you have pinpointed the trouble area.

If problems persist after checking the unit against this guide, please call our Repairs Department on 

02 6553 2473 or e-mail [email protected]

Summary of Contents for CoxBox

Page 1: ...s NK CoxBox PLEASE take a moment to review these instructions before installiation use Your CoxBox system should provide you with years of trouble free service but we are always here to help if a prob...

Page 2: ...t will store stroke rates in the memory The data will not store if the unit is in HOLD mode If any of these functions do not work properly review each step of the installation checking all distances a...

Page 3: ...NK to have new batteries installed We expect our batteries to need replacement after three years of normal full season use Care of Your Microphone Your microphone is shipped attached to a headband and...

Page 4: ...f these exist contact NK about repairing them 4 Apply silicone grease to the outside of the rubber plug on the Cox Box This helps to minimize the damage done by repeatedly removing the unit from the b...

Page 5: ...ill help prolong the battery life A fully drained Cox Box battery requires 12 hours on charge to attain maximum capacity It is not necessary to try to discharge the Cox Box batteries fully between cha...

Page 6: ...ollowing test Obtain a multimeter almost any type will do Turn the multimeter on and set it at 20 VDC After plugging the charger in be VERY careful the charger is ON place the positive lead from the m...

Page 7: ...el as the other sockets Use the Socket Maintenance Kit NK Part No 0242 to clean any imbedded dirt or debris from the sockets and inject a small amount of Nyogel into the sockets to prevent corrosion a...

Page 8: ...ext season Memory Effect It is not necessary to try to discharge the CoxBox batteries fully between charging there is virtually no memory effect in modern nickel cadmium batteries Avoid Overcharging N...

Page 9: ...to a number of crews at once or by switching channels to just one crew individually Charge your Cox Box from any car or truck cigarette lighter Great when traveling to regattas CAR CHARGER NK PART 02...

Page 10: ...or the sensor and magnets to be centered between the rails as shown in Figure 1a They may be positioned off center as shown in Fig 1b It is essential however that the magnet passes directly over the s...

Page 11: ...side of the seat plate You can install the sensor and magnets semi permanently by using the 3M VHB Very High Bond tape supplied Should you wish to make a temporary installation use the screws provide...

Page 12: ...n The plug in feature of NK speakers makes replacement very easy 1 Install the speakers using 6 x 1 2 panhead screws and the metal bracket attached to the speaker We have supplied SIX screws you will...

Page 13: ...time recalled from memory is the time at which the timer was stopped 7 Now turn the COX BOX off then back on again the memory is not lost To clear memory you must press the toggle switch down and hold...

Page 14: ...hree simple pieces Even add on pieces as your budget allows Affordable modules eliminate the need for repairs simply plug in a new section if needed Plug in rate sensor for instant repairs and trouble...

Page 15: ...tionally we can replace the can with a STAINLESS STEEL one for increased durability 50 00 inc GST Should your Aluminium can be excessively dented then we must replace it with a stainless steel unit as...

Page 16: ...E Marc Douez David McGrath Contact Info Delivery Address Please send all parcels to this address Nielsen Kellerman Australia Pty Ltd Remo 206 Cowans Lane Oxley Island NSW 2430 AUSTRALIA Email info nk...

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