Technical Manual
Page 2
1. Safety Precautions
ALWAYS EMPLOY SAFE WORKING
PRACTISE AND PROCEDURES
WARNING:
Risk of Danger
WARNING:
Risk of Electric Shock
WARNING:
Risk of High Pressure
WARNING:
Consult Manual
When installing, commissioning, operating or
carrying out service or maintenance on a product,
personnel must use safe working practise and
observe all relevant local health and safety
requirements and regulations. Attention of users in
the UK is drawn to the Health and Safety at Work
Act, 1974, and to the Regulations and
Recommendations of the Institution of Electrical
Engineers (IEE).
Lethal voltages are used within the product. Use
extreme caution when carrying out electrical checks.
Isolate the power supply before starting any
maintenance work.
It is not possible to anticipate every circumstance
that might represent a potential hazard. If the user
employs an operating procedure, an item of
equipment or a method of working which is not
specifically recommended the user must ensure the
product will not be damaged or made unsafe and
that there is no risk to persons or property. Failure to
observe safety precautions or implement safe
working practises may be considered dangerous
practice or misuse of the product.
1.2 Installation
Installation work must only be carried out by a
competent person under qualified supervision.
A fused isolation switch must be fitted between the
main power supply and the product.
The product should be mounted in such a location
as to allow operational and maintenance access
without obstruction or hazard and to allow clear
visibility of indicators at all times.
If raised platforms are required to provide access to
the product they must not interfere with normal
operation or obstruct access. Platforms and stairs
should be of grid or plate construction with safety
rails on all open sides.
1.3 Operation
The product must only be operated by competent
personnel under qualified supervision.
Never remove or tamper with safety devices, guards
or insulation materials fitted to the unit.
The product must only be operated at the supply
voltage and frequency for which it is designed.
When mains power is switched on, lethal voltages
are present in the electrical circuits and extreme
caution must be exercised whenever it is necessary
to carry out any work on the unit.
Do not open access panels or touch electrical
components while voltage is applied unless it is
necessary for measurements, tests or adjustments.
This work must only be carried out by a qualified
electrician or technician equipped with the correct
tools and appropriate protection against electrical
hazards.
All air compressors and/or other machine equipment
connected too, and controlled by, the product should
have a warning sign attached stating ‘THIS UNIT
MAY START WITHOUT WARNING' next to the
display panel.
If an air compressor and/or other machine
equipment connected too, and controlled by, the
product is to be started remotely, attach warning
signs to the machine stating ‘THIS UNIT CAN BE
STARTED REMOTELY’ in a prominent location,
one on the outside of the machine, the other inside
the machine control compartment.
1.3 Service Maintenance and Repair
Service, maintenance, repairs or modifications must
only be carried out by competent personnel under
qualified supervision.
If replacement parts are required use only genuine
parts from the original equipment manufacturer, or
an alternative approved source.
Carry out the following operations before opening or
removing any access panels or carrying out any
work on the product :-
• Isolate from the main electrical power supply.
Lock the isolator in the 'OFF' position and
remove the fuses.
• Attach a label to the isolator switch and to the
product stating ‘WORK IN PROGRESS - DO
NOT APPLY VOLTAGE'. Do not switch on
electrical power or attempt to start the unit if
such a warning label is attached.
Ensure that all instructions concerning operation
and maintenance are strictly followed and that the
complete product, with all accessories and safety
devices, is kept in good working order.
The accuracy of sensor devices must be checked
on a regular basis. They must be renewed when
acceptable tolerances are exceeded. Always ensure
any pressure within a compressed air system is
safely vented to atmosphere before attempting to
remove or install a sensor device.
The product must only be cleaned with a damp
cloth, using mild detergents if necessary. Avoid the
use of any substances containing corrosive acids or
alkalis.
Do not paint the control facial or obscure any
indications, controls, instructions or warnings.
