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Blue Ocean® Megaphone : Support
Instructions
WARNING! THE BLUE OCEAN MEGAPHONE IS LOUD. AMPLIFIED SOUND OR LOUD FEEDBACK MAY CAUSE DAMAGE TO A PERSON'S EARS OR HEARING. DO NOT OPERATE THIS MEGAPHONE IN CLOSE PROXIMITY TO A PERSON'S EARS. USE EXTRA CAUTION WHEN OPERATING NEAR FULL VOLUME OR WHEN TRIGGERING THE HORN OR SIREN MODES.
- NOTE the alignment guides on the battery pack - two on one end, one on the other.
- Align the battery pack guides with the matching grooves on the Blue Ocean Megaphone and insert the battery pack. DO NOT FORCE the pack into the charger.
- Turn battery pack knob until it clicks.
- Turn knob clockwise until you hear a 'click' to power on the Blue Ocean Megaphone.
- Continue turning knob to higher numbers to increase volume.
- Turn knob counterclockwise to reduce volume.
- Continue turning knob until you hear a 'click' at the power symbol to power off.
Note: FOR MAXIMUM BATTERY LIFE, TURN OFF WHEN NOT IN USE USE (30 HOURS STANDBY TIME).
- After turning the Blue Ocean Megaphone on, push the talk trigger to activate the Blue Ocean Megaphone for speaking. For maximum battery life, push the talk trigger only when speaking.
- Hold your mouth close to and in line with the foam microphone screen. Use a normal to slightly increased speaking volume to maximize clarity.
- Adjust the volume to a level where there is no feedback (howling, squeaking or squealing sounds). This level will differ depending upon the openness of the area of operation and the volume of your speaking voice.
- To maximize volume and clarity, point the megaphone directly to- ward your listeners from a safe distance.
- To reduce feedback, do not aim the Blue Ocean Megaphone directly at solid surfaces or the water.
Your Blue Ocean Megaphone is equipped with a directional noise- canceling microphone element. Because of the extreme volume and proximity of the Blue Ocean Megaphone speaker unit, this micro- phone is designed to isolate your voice and prevent feedback. For the best sound quality, position your mouth close to the microphone port when using the internal microphone. To reduce fatigue and the need to position your mouth when speaking, consider plugging in an NK Microphone for hands free operation.
- Plug an NK Blue Ocean Microphone into the microphone connector to enable hands-free operation.
- The Blue Ocean Megaphone amplifier is always "on" when the mi- crophone is plugged in. It is not necessary to push the talk trigger.
- Depending on conditions, you may be able to use a higher volume setting when using the external microphone without experiencing feedback. Use of the external microphone is recommended when maximum volume and range is desired.
Note: AVOID EXCESS BENDING OF THE MICROPHONE CABLE AND CONNECTOR WHEN PLUGGED IN.
- The siren and fog horn modes are always available and do not re- quire activation of the talk trigger.
- Push the S/H button up towards "S" to activate the siren. Release to turn off.
- The siren and foghorn are always at "Max" volume and the volume is not adjustable.
Note: TO AVOID HEARING DAMAGE, DO NOT ACTIVATE THE SIREN OR HORN NEAR A PERSON'S EARS.
Your Blue Ocean® Megaphone is completely waterproof and will not be harmed by use in the rain. However, if the wind screen foam in- side of the microphone port becomes saturated with water, the water will inhibit sound from reaching the microphone and result in poor, or even no, sound transmission. Accordingly, we recommend that you avoid allowing rain to fall directly into the microphone port. If the port does become saturated with water, you can clear it by holding the megaphone battery side down and shaking it, or by blowing once or twice directly into the microphone port until your voice is clear again. It is not necessary for the wind screen to be completely dry. Do not attempt to poke or squeeze the wind screen dry as this may damage the waterproof membrane at the base of the micro- phone port, destroying the waterproof seal of your unit.
The status LED indicates the Blue Ocean Megaphone operating status and capacity of the installed battery pack as follows:
| Any light | Megaphone power is "On" |
| Solid Green | 26 to 100% capacity |
| Solid Yellow | 11 to 25% capacity |
| Solid Red | 6 to 10% capacity |
| Flashing Red | Less than 6% capacity |
| Flashing: Green Yellow Red | Unit is overheated or has an error
- Turn the unit off and put it in a cool place. It should return to normal operation when cooled down.
- To clear an error, turn the unit off, remove the battery, reinsert the battery and turn on again. If the error persists, try re-charging the battery in the charging dock. If the error light persists after these steps, remove the battery and contact NK for support.
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- Charge your battery pack ONLY with an NK or Blue Ocean battery charger following these instructions. You may also safely use an NK Cox Box following the provided instructions if available.
- Plug the charger into a standard wall outlet. NOTE: The battery charger is capable of accepting all world currents. If traveling, you need only obtain an inexpensive adapter plug for your destination's outlet configuration to use your battery charger.
- NOTE the alignment guides on the battery pack - two on one end, one on the other.
- Align the battery pack guides with the matching grooves on the Charger and insert the battery pack. DO NOT FORCE the pack into the charger.
- Turn the battery pack knob until it clicks. The battery will begin charging.
- Charging Time: Charging a fully depleted battery to 100% requires 12 hours. A partially discharged battery will recharge more quickly.
- Operating Capacity & Standby Time: A fully-charged battery will provide 8 hours of typical operation, defined as speaking 35% of the time at volume level 6, and 30 hours of standby time. Hours of operation will vary significantly depending on the volume, continuity of operation, and microphone use.
- Charge Retention: A charged battery will retain its charge for up to two months if left in the Blue Ocean Megaphone and six months if stored separately.
- Cycle Life: An NK Blue Ocean battery pack can be expected to provide 80% of its rated capacity after 300 charge/discharge cycles and 60% after 500 cycles. Storing, transporting or using your battery pack at temperatures exceeding 115°F/45°C will substantially reduce the cycle life of your battery pack.
- Do not ever subject to fire or high temperatures (> 140°F / 160°C).
- Do not charge, use, transport or store above 115°F/45°C.
- Do not charge below 32°F/0°C
- Do not puncture or open the battery pack.
- Do not use a pack that has been damaged or has be dis- played repeated charging errors.
- Stop charging or use immediately and remove the megaphone or battery charge if you see smoke or smell fumes.
- If battery pack is damaged, avoid contact with batty electro- lyte which may be irritating to skin, eyes and mucous mem- branes.
- In case of battery fire, evacuate the area to avoid inhalation of fumes. If possible, over the battery with sand to extinguish the fire or use a dry ABC type extinguisher.
- Clean your Blue Ocean Megaphone with plain water or a neutral detergent. Avoid contact with solvents and/or gasoline.
- Always keep a protective bumper installed to minimize impact damage. Order a replacement bumper from NK if torn or damaged.
- Clean and maintain the rubber microphone plug and sockets with the NK Maintenance Kit. Keep the sockets free of debris and cor- rosion by cleaning with a fine drill bit (figure a) and lubricating with electrical contact grease (figure b). Lubricate the outside of the rubber plug with silicone grease (figures c and d).
Limited Warranty
Nielsen-Kellerman Co. ("NK") guarantees the NK Blue Ocean Megaphone to be free of defects in materials and workmanship for a period of TWO YEARS from your date of purchase. NK will repair or replace any defective product or part when notified within the warranty period, and will return the
product via domestic ground shipping or NK's choice of method of international shipping at no charge.
The following issues do not result from a manufacturing defect and are not covered under this warranty:
- Damage due to improper use or neglect (including corrosion)
- Damage resulting from severe impact, crushing or mechanical harm
- Modifications or attempted repairs by someone other than an authorized NK repair agent
- Normal wear and tear
- Diminished battery capacity within normal range for the number of charge/discharge cycles
Your warranty period will be measured from your date of purchase. Ensure full warranty coverage by REGISTERING your NK product promptly at www.nkhome.com. We keep your registration information in strict confidence and do not sell it, share it, or use it for anything but product-related information bulletins (which you may decline receiving). If you do not register and cannot provide proof of purchase, your warranty period will be measured from our date of manufacture by serial number. Removing or defacing the serial number voids this warranty.
Except for the warranties set forth herein, NK disclaims all other warranties, expressed, implied or statutory, including, but
not limited to, the implied warranties of merchantability or
fitness for a particular purpose. Any implied warranties that may be imposed by applicable law are limited to the term of this warranty. In no event shall NK be liable for any incidental, special or consequential damages, including, but not limited to, loss of business, loss of profits, loss of data or use, whether in an action in contract or tort or based on a warranty, arising out of or in connection with the use or performance of an NK product, even if NK has been advised of
the possibility of such damages. You agree that repair, and (upon availability) replacement, as applicable, is your sole and exclusive remedy with respect to any breach of the NK Limited Warranty set forth herein. All product liability and warranty options are governed exclusively by the laws of the Commonwealth of Pennsylvania.
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