GE CL 5, Руководство по эксплуатации

Страница: 9 / 93

CL 5 Issue 01, 04/05 0-7
Important Notice
being measured. This effect, commonly known as
“doubling,” can occur below the minimum specified
range of the transducer. If the transducer being used is
worn, doubling is possible at a thickness greater than
the minimum of the specified range.
When using a new transducer, any reading which is
less than twice the minimum specified range of the
transducer may be a “doubled” reading, and the
thickness of the material being tested should be
verified by the use of other methods. If the transducer
shows any sign of wear, doubling may occur at a
second echo or other echo signal combinations may
produce a readable signal. The instrument reading and
apparent thickness are up to about twice the actual
value, resulting in a thickness greater than twice the
minimum of the specified range. This thickness should
be determined by calibrating the instrument/transducer
combination on reference blocks that represent the
complete range of possible thicknesses that may be
encountered in testing. This is particularly important
when the test piece is being ultrasonically measured for
the first time or in any case where the history of thick-
ness of the test specimen is unknown.
Safety Information
Attention:
The CL 5 is an instrument for materials testing. Any
use for medical applications or other purposes is not
allowed.
The CL 5 may only be used in industrial environments.
The CL 5 can be operated with batteries or while
plugged into an electrical outlet using the AC charger.
The power supply unit has the electrical safety class II.
Batteries:
For the battery operation of the CL 5, we recommend
the use of a lithium-polt battery pack provided.
Operation using alkaline batteries, NiMH or NiCAD
cells is possible. You should only use the products
recommended by us for the battery operation. Do not
attempt to use any lithium batteries that are not
provided with the instrument. Do not attempt to charge
the provided batteries on an outside charger.
CL 5 Issue 01, 04/05 0-7
Important Notice
being measured. This effect, commonly known as
“doubling,” can occur below the minimum specified
range of the transducer. If the transducer being used is
worn, doubling is possible at a thickness greater than
the minimum of the specified range.
When using a new transducer, any reading which is
less than twice the minimum specified range of the
transducer may be a “doubled” reading, and the
thickness of the material being tested should be
verified by the use of other methods. If the transducer
shows any sign of wear, doubling may occur at a
second echo or other echo signal combinations may
produce a readable signal. The instrument reading and
apparent thickness are up to about twice the actual
value, resulting in a thickness greater than twice the
minimum of the specified range. This thickness should
be determined by calibrating the instrument/transducer
combination on reference blocks that represent the
complete range of possible thicknesses that may be
encountered in testing. This is particularly important
when the test piece is being ultrasonically measured for
the first time or in any case where the history of thick-
ness of the test specimen is unknown.
Safety Information
Attention:
The CL 5 is an instrument for materials testing. Any
use for medical applications or other purposes is not
allowed.
The CL 5 may only be used in industrial environments.
The CL 5 can be operated with batteries or while
plugged into an electrical outlet using the AC charger.
The power supply unit has the electrical safety class II.
Batteries:
For the battery operation of the CL 5, we recommend
the use of a lithium-polt battery pack provided.
Operation using alkaline batteries, NiMH or NiCAD
cells is possible. You should only use the products
recommended by us for the battery operation. Do not
attempt to use any lithium batteries that are not
provided with the instrument. Do not attempt to charge
the provided batteries on an outside charger.