Lebel Audio PWL III User manual
PWL III
48 V phantom mic power supply
www.lebel-audio.com
entreprise individuelle - nicolas boyer
5 rue de la défense
92130 Issy-les-Moulineaux Moulineaux
2/10 PWL III
About PWL III
•ultra compact
About the size of a AA battery
•very light
PWL III less than 150g with a battery
•ultra low battery consumption
PWL III is designed to work a day with a battery
(11 hours mini with a 1.2V Nimh 2850mAh @20°C @5mA)
•fast battery reloading
The battery holder is accessible and quickly opened
•rugged construction and EMC shielded
All cast and machined aluminium housing
•wet and dust resistant (IP6 )
•easy to use
No button, automatic ON/OFF with the transmitter
•fit on a boom with Cinela® or Rycote® mic suspensions
•mecanically safe
All connectors are locking tight
•adapt to all existing wireless transmitters
•high end audio electronics
Include a Neutrik transformer for audio conversion
•protected against all shorts, misuses and over-discharge
•affordable
Lebel Audio www.lebel-audio.com
3/10 PWL III
PACKAGE CO TE TS
1 - PWL III
2 -Transmitter cable
3 - Instruction manual
SAFETY I STRUCTIO S
•Take care that the cable will not produce background noise.
•If the PWL III will not be used for an extended period, remove the
battery.
•Do not flush the PWL III with solvents.
Lebel Audio www.lebel-audio.com
/10 PWL III
Product description
Battery holder cap
8V / battery status indicator
output 3 pin mini-xlr male connector for audio transmitter
input for microphone, 3 pin XLR with locking nut
Mini XLR3M
1 ground/shield 2 audio + 3 audio -
(for unbalanced output connect pins 1&3)
Lebel Audio www.lebel-audio.com
5/10 PWL III
START UP
I SERT BATTERIES
The PWL III is powered by one 1.5V AA (LR6) battery
Open the battery holder by rotating the cap over a quarter turn left. You can
use a small coin.
Insert the battery. Place the ''-'' side of the battery at the bottom.
Fit the cap in place, and close by pushing and rotating it a quarter turn right.
ASSEMBLE THE PWL III TO THE CO ECTOR OF THE MICROPHO E
SUSPE SIO OR CABLE
Unscrew completely the nut on the XLR connector of the PWL III, then insert it
to the male XLR connector. Lock it by complete screwing.
Lebel Audio www.lebel-audio.com
Locking nut
6/10 PWL III
Insert the cable and lock it on the PWL III
Install the audio transmitter. (no transmitter holder is provided).
Connect the cable to the transmitter.
Adjust the transmitter sensibility.
Verify that all elements are firmly assembled.
SWITCHI G O /OFF
There is no on/off switch on the PWL III.
The audio transmitter automatically powers on and off PWL III.
After switching on the transmitter, PWLIII enters a fast initialisation mode by
flashing red then blue LED. Then the 48V ''BLUE'' LED should blink slowly as
the microphone is powered.
LED DISPLAY
OFF - the transmitter is off.
BLUE slow blinking (3sec.)- the microphone is powered with 8V.
RED slow blinking (3sec.)- the battery is low, 1 hour left .
RED fast blinking (1 sec.)- the battery is very low, 15 mn left.
Times given may vary upon type of battery and microphones used.
RED full – The battery is too low to power the microphone. PWLIII stops the
power conversion to preserve Nimh battery from over-discharge.
Lebel Audio www.lebel-audio.com
7/10 PWL III
TECH ICAL DATA
Connectors :
microphone : 3-pin XLR female
audio-transmitter : 3-pin TA3 mini XLR male
Compatibility to audio-transmitter :
Full compatible to all wireless transmitters.
Compatibility to condenser-microphones :
Full compatible to all Phantom 48V mics.
Dimension and weight :
Dimensions : 115 x 36 x 26mm ( .5x1.6x1 In.)
Weight : 120gr (without battery) 0.26 lb
Housing : aluminium profile housing, anodized and painted.
Electrical data :
Current supply : 1.5V, 1xAA (LR6) battery
use only heavy duty alkaline, lithium or rechargeable NimH batteries.
Over 2000mAh is recommended.
Power consumption : 5uA in sleep mode
15mA without microphone connected
over 100mA when a microphone is connected,
depending on the microphone specs.
Capacity : PWL III can delivers 5mA, up to 10mA with a lithium
battery
Lebel Audio www.lebel-audio.com
8/10 PWL III
Audio :
Function : balanced/unbalanced passive conversion with 1:1 ratio transformer
Max level: 0dBu @ 1% THD
Noise floor : -78dBu (C weighting)
Bandwidth : 50Hz-20kHz (+1dB/-3dB)
Mesurement made with a 200 Ohms source, connected to a 10k Ohms load,
powered.
Lebel Audio www.lebel-audio.com
9/10 PWL III
WIRI G I FORMATIO
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10/10 PWL III
TROUBLESHOOTING
•PWL III doesn't power on
Verify the battery, verify the connectors, verify the microphone
and the transmitter.
•It makes noise when used on a boom
Verify all mountings.
•The battery doesn't last as expected
The cap must be clean and locked on the battery holder.
Test battery charge. Verify mic specs.
Use only high power AA. (over 2000mAh capacity )
imh batteries loose power over time, even without use.
Recharge them just before use.
At low temperature, alkalines and rechargeable batteries
may also loose a lot of their nominal capacity.
If temperature go lower than 10°C, use lithium batteries.
•Sound is distorded
Adjust correctly the input level on the transmitter.
PWL III can accept levels up to 1Vrms (+2 dbU).
Lebel Audio www.lebel-audio.com
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