Clockaudio CU 2 User manual

PROFESSIONALMICROPHONESYSTEMS
CU 2
An Intelligent battery managementsystemdesigned foruse with Clockaudio CW 9004T, CW 9005T and
CW 9006Twirelessbase transmitters.
CAUTION:Always
turn offthe wireless
microphone
transmitter before
putting the
transmitter intothe
charger.
Place
transmitter in
to charging
bay
Processor controlled
Built-in activemonitoringsystem
Temperaturesensor
Dedicated compartments for
charging twoCW 9004T, CW
9005T orCW 9006T
Must be used with AC power
adaptor suppliedwith each CU2.
RedLED
(Checking
battery)
RedLED
flashing
(FAULT -
battery)
Red LED flashing
(FAULT - safety
time limit
exceeded)
User Guide
1) Insert oneortwo wirelessmicrophone transmitters intothe charger with the metal charging
pointsfacingdown. Seefig1
2) There aretwo LEDs. TheLED closest tothe powersupply input isforthe charging bayonthe
right. TheLED furthest away from the powersupply input isforthe charging bayonthe left.
The LED will light upredto show that the transmitter in that charging bayis charging. Seefig2
3) The transmitters are chargedindependently. Each transmitter may take upto8 hours to charge
depending onthe capacity ofthe batteries andhow flat the batteries are.
4)TheLED will light up greenwhen the transmitter in that charging bayis fully charged. Seefig3
5) The fully-charged transmitter canbe removed and replaced with another transmitter that
requirescharging,even if there isa charging transmitter inthe otherchargingbay.
Fig 1
Fig 2
www.clockaudio.com
Fig 3

FAULTS WITH ONEOFTHE TRANSMITTERS
Battery Fault
Do notuseany other types of batteries inthe models CW9004T CW9005T CW9006T otherthan the
supplied GP2700 batteries. The suppliedbatterieshavebeenmatched for optimumperformance for
both theCU2 charger and transmitter. Failure tousethe correctrechargeablebatteries may giverise
to faulty charging and substandard operation ofthe radio transmitter. Replacement batteries are
available fromClockaudiopleasecontactyouragentshould you requirereplacementbatteries.
• Red flashing light will show immediately if alkaline or other non rechargeablebatteries have
beenused. The intelligent charger will automaticallystop any charging of thesebatteries
therebypreventing any harm to both the charger or battery pack. Recommended rechargeable
batteries are NiMH2700.
• During the charging process theRed flashing light willshow ifoneofthe batteries have
failed/become faulty and charging ofthe batterieswillautomatically be stopped. Asyou will
not be able to tell which oneofthe batteries has failed, itis important to replaceboth ofthe
batteries atthe same time.
•Red flashing light may show ifthe batteries are totally flat. Rechargeablebatteriesshould
neverbecome totally flat and usually this will render the batteriesunusable. Try removing the
batterypack for30 seconds,thenreconnecting the battery pack tothe charger as some times
itmaybe possible to recoverthesebatteries.Otherwisereplacebothbatteries.
Safety Time Limit Exceeded
The LED will flash redto indicate that_the charger has exceeded the charging time safety limit for that
charging bay.This can indicate that there isa faultwith the batteries inthe transmitter. Replace the
batteries inthe transmitter andtry charging the transmitteragain.
•Red flashing light may show ifthe battery has been charging for manyhours(over 16 hours)
and a failsafecircuitwilloperate and stop the chargingprocess.This maybedueto following
extreme cases:
1. Very flat batteries may requirelongerthannormal to fully charge. A safetycircuitwill
activatepreventingcharging tothe battery pack.
2. Battery that is intermittently becomingfaulty.
3. The battery / charging unit has beenmoved or sustained shock / vibration causing a brief
disconnectionbetween the charger / batterypack.
4. Battery or chargercontactshave become contaminated and requirecleaning. Using a
cotton bud dipped into Isopropyl alcohol or mentholated spirits gentlyclean the battery
and chargercontacts.
5.The supply tothe charger may have brieflyreceived a noisy or spikedsupply. The charger
contains a failsafe circuit preventing any damage
occurring tothe Batteries / wireless circuitry.
IMPORTANT:Afterchecking all above remove the batterypack and wait for30 seconds
before reconnecting the battery pack tothe charger. Thered light should no longer be
flashing.