UNAOHM
EP2500 (Rev. 0)
5
1.2 GENERAL WARNINGS
• Do not expose the instrument to strong magnetic or electric (motors, transformers, solenoids) fields.
• All precautions have been taken to prevent foreign object, even very small, from getting into the
instrument. However this is still a frequent cause for internal shortcircuit. Therefore, we highly
recommend not to cut coaxial cables on top of the instrument since even very small pieces of wire
from the shielding braid could fall into it and cause occasional shortcircuiting which may even be
difficult for service and repair technicians to locate.
1.3 MAINTENANCE
The only maintenance permitted is: the connection or replacement of the battery, and fitting internal
accessories as specified in the manual.
Opening of the instrument and any further servicing must be carried out exclusively by qualified
personnel or, in any case, operator’s who have basic technical qualifications and electrical safety
knowledge.
• For instruments equipped with a battery please refer again to note 1.1.
• Do not come into contact with electrical parts which maintain an electric charge (such as capacitors)
even when not powered.
• Take appropriate measures against the build up of electrostatic charges. Do not touch internal
circuits unless wearing a special anti-static strap.
• To clean the outside surfaces:
1. Use a soft cloth and non aggressive liquid detergents avoiding petrol-based products.
2. Make sure liquids or other substances do not penetrate into the instrument.
1.4 NOTES
• The figures of accuracy quoted refer to the temperature reached by the instrument approx. 10÷15
minutes after turn on.
• Avoid falls and strong shocks to the instrument; make sure that the instrument is not subject to
shaking and vibrations during transport by placing it on an upholstered support.
• Before using the instrument we recommend you carefully read the instructions in this manual.
• To operate the instrument in a vertical position, instead of a horizontal one, lean it on its rear panel.
• A periodical operational check of the instrument is recommended at least on a yearly basis,
accompanied, if necessary, by an overall calibration. This will ensure years of trouble free operation.
Likewise, never allow the bag and the strap to wear off too much. Safety considerations require that
the bag and the strap are replaced when the first signs of tear and wear are about to arise. See 1.1.
for more details.
The level of the ionised rays emitted by the CRT is within EN 61010-1 norms. The radiation emitted by
this instrument is lower than 5µSv/h at a distance of 5cm from the CRT surface. Since the radiation
level mainly depends on the characteristics of the CRT and its related low and high voltage power
supply circuits, they must not be modified with respect to the original conditions as otherwise, safety
requirements will not be met.
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