Subject to change without notice
7
61010-1 correspond to this standard. It has left the factory in a safe
condition. This operating manual contains important information and
warnings that have to be followed by the user to ensure safe operation
and to retain the Curve Tracer in a safe condition. The case, chassis and all
measuring terminals are connected to the protective earth contact of the
appliance inlet. The instrument operates according to
Safety Class I
(three-
conductor power cord with protective ground conductor and a plug with
ground contact). The mains/line plug shall only be inserted in a socket
outlet provided with a protective ground contact. The protective action
must not be negated by the use of an extension cord without a protective
conductor.
The grounded accessible metal parts (case, sockets, and jacks) and the
mains/line supply contacts (line/live, neutral) of the instrument have been
tested against insulation breakdown with 2200V DC. Under certain
conditions, 50Hz or 60Hz hum voltages can occur in the measuring circuit
due to the interconnection with other mains/line-powered equipment or
instruments. This can be avoided by using an isolation transformer (Safety
Class II) between the mains/line outlet and the power plug of the device
being investigated.
Cathode-ray tubes normally emit X-rays. However, the dose equivalent
rate falls far below the maximum permissible value of 36 pA/kg (0.5mR/h).
Whenever it is likely that protection has been impaired, the instrument
shall be made inoperative and be secured against any unintended operation.
The protection is likely to be impaired if, for example, the instrument
-
shows visible damage,
-
fails to perform the intended measurements,
-
has been subjected to prolonged storage under unfavorable conditions
(e.g. in the open or in moist environments),
-
has been subject to severe transport stress (e.g. in poor packaging).
1. 4. Operating Conditions
The instrument has been designed for indoor use. The permissible ambient
temperature range during operation is +10°C (+50°F) ... +40°C (+104°F).
It may occasionally be subjected to temperatures b10°C (+50°F)
and -10°C (+14°F) without degrading its safety. The permissible ambient
temperature range for storage or transportation is -40°C (+14°F) ... +70°C
(+158°F).
The maximum operating altitude is up to 2200 m; the maximum relative
humidity is up to 80%. If condensed water exists in the instrument it
should be acclimatized before switching on. In some cases (e.g. instrument
extremely cold) two hours should be allowed before the instrument is put
into operation. The instrument should be kept in a clean and dry room and
must not be operated in explosive, corrosive, dusty, or moist environments.
The Curve Tracer can be operated in any position, but the convection cooling
must not be impaired. For continuous operation the instrument should be
used in the horizontal position, preferably tilted upwards, resting on the tilt
handle.
