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14.01 PRODUCT SAFETY
This product is manufactured with the highest standards and is double checked in our quality control department for reliability
in the "HIGH VOLTAGE" section.
CAUTION
Never remove any panels, or open this equipment. No user serviceable parts inside. Equipment power supply must be grounded
at all times.
Only use this product as described, in user manual or brochure.
Do not operate this equipment in high humidity or expose it to water or other liquids. Check the AC power supply cable to
assure secure contact.
Have your equipment checked yearly by a qualified dealer service center. Hazardous electrical shock can be avoided by
carefully following the above rules.
EXTRA CAUTION FOR LIVE SOUND
Ground all equipment using the ground pin in the AC power supply cable. Never remove this pin.
Ground loops should be eliminated only by use of isolation transformers for all inputs and outputs. Replace any blown fuse with
the same type and rating only after equipment has been disconnected from AC power. If problem persists, return equipment
to qualified service technician.
PLEASE READ THE FOLLOWING INFORMATION VERY CAREFULLY
Especially in sound equipment on stage the following information is essential to know.
An electrical shock is caused by voltage and current, actually it is the current that causes the shock. In practice the higher the
voltage the higher the current will be and the higher the shock.
But there is another thing to consider and it is resistance.
When the resistance in Ohms is high between two poles, the current will be low and visa versa. All three of these; voltage,
current. and resistance are important in determining the effect of an electrical shock.
However, the severity of a shock primarily determined by the amount of current flowing through a person.
A person can feel a shock because the muscles in a body respond to electric Current can also be fatal when it causes the
chest muscles to contract and stop breathing. At what potential is current dangerous.
Well the first feeling of current is a tingle at 0.001 Amp of current. The current between 0.1 Amp and 0.2 Amp is fatal.
Imagine that your home fuses of 20 Amp can handle 200 times more current than is necessary to kill. How does resistance
affect the shock a person feels.
A typical resistance between one hand to the other in "dry" condition could be well over 100,000 Ohm.
If you are playing on stage your body is perspiring extensively and your body resistance is lowered by more than 50%. This is
a situation in which current can easily flow.
PRODUCT SAFETY
Current will flow when there is a difference in ground potential between equipment on stage and in the P,A. system. Please
do check if there is any potential between the housing of the mikes and the guitar synth amps, which will be linked by your
body on stage.
Imagine, a guitar in your hand and your lips close to the mike! A ground potential difference of above 10 volts is not unusual,
in improperly wired buildings it can possibly be as high as 240 volts. Although removing the ground wire sometimes cures a
system hum, it will create a very hazardous situation for the performing musician.
Always earth all your equipment by, the grounding pin in your mains plug Hum loops should be only cured by proper
wiring and isolation input/output transformers.
Replace fuses always with the same type and rating after the equipment has been turned off and unplugged. If the fuse blows
again you have an equipment failure, do not use it again and return it to your dealer for repair.
And last but not least be careful not to touch a person being shocked as you, yourself could also be shocked. Once removed
from the shock, have someone send for medical help immediately
Always keep the above mentioned information in mind when using electrically powered equipment.
D&R ELECTRONICA B.V. WEESP
HEAD OFFICE
D&R Electronica Weesp b.v. Rijnkade 15B
1382 GS WEESP
THE NETHERLANDS
Phone: +31 (294) 418 014* Fax: +31 (294) 416 987
Website:
http//www.d-r.nl E-mail: info@d-r.nl
Vision manual page:35
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