Sperry Marine Rudder Angle Indicator System, Руководство по эксплуатации, установке и обслуживанию

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RAIS 056357/B
vii
General Safety Information for Service Personnel
DANGER
Life danger through electrical shock
Certain alarm devices may operate with hazardous voltages, switched
by the alarm relay output contacts.
NEVER connect live wires to the unit’s terminals, when wiring up the
Rudder Angle Calibrator.
ALWAYS make sure that any external device or power supply to be con-
nected to the alarm relay outputs is de-energized and safeguarded
against accidental switching-on.
CAUTION
Risk of damage of electrostatic-discharge-sensitive components
Components on the Rudder Angle Calibrator PCB are sensitive to static
discharge.
While wiring up the Rudder Angle Calibrator, take the necessary precau-
tions to prevent electrostatic discharges.
CAUTION
Risk of damage of electrostatic-discharge-sensitive components
The
Rudder Angle Calibrator
contains electrostatic sensitive components.
Electrostatic discharge may permanently damage components.
When configuring the
Rudder Angle Calibrator
, take precautions to prevent
electrostatic discharge. Avoid touching any of the electronic circuitry.
WARNING
Risk of personal injury
To calibrate the feedback input, the rudder has to be moved over its
entire range. Always make sure that the steering gear is operative and
that the rudder may be actuated safely without any risk of personal
injury or damage to equipment, especially when the vessel is drydocked
and works are carried out by shipyard personnel.
Always inform the shipboard or shipyard personnel in charge of your
intention to actuate the rudder and obtain permission to operate the
steering gear for calibration purposes, before moving the rudder.
Note The calibration procedures require that tasks are carried out at different
locations on the vessel.
If possible, use voice communication to instruct one or more helpers to
report the actual rudder angle indications as read from the rudder stock
scale and indicated at the RAIs respectively.
WARNING
Risk of injury
Connecting the RAC to a rudder angle feedback unit in parallel with the
steering gear feedback loop bears the risk of malfunction of the steering
gear in case of wire breaks or short-circuits resulting in possible injury
and/or damage.
Under no circumstances must the RAC be connected to a rudder angle
feedback unit potentiometer in parallel with the steering gear feedback
loop.