Hameg HM8040-3, Руководство пользователя, Страница: 17 / 22

17 Subject to change without notice
STOP STOP
STOP
STOP
Safety regulations require that the mainframe be only operated
from mains outlets with a safety ground connector or via an
isolation transformer of safety class 2. No special orientation of
the instrument is prescribed, however, sufficient air circulation
must be ensured. Continuous operation will require a horizontal or
slightly tilted (front feet extended) position.
The ventilation holes must not be obstructed
Specifications with tolerances are valid after a 30 minute warm-
up period and at 23 degrees C.
Specifications without tolerances are typical values of an average
instrument.
Warranty
HAMEG instruments are subjected to rigid quality controls. Each
instrument will pass a 10 hr burn-in prior to leaving the factory.
This test with intermittent operation will detect most early failures.
Following the burn-in the instrument will be tested for function
and quality in all operating modes in order to ensure the fulfillment
of its specifications.
Inspite of these tests an instrument may fail after substantial use.
Therefore a 2 year warranty applies to all instruments which have
not been tampered with. Also the warranty will be voided for any
instruments damaged by negligence or by unsuitable transport
packaging. Only the original packaging may be used for transport
by post, rail or transport companies.
In case of a warranty claim please attach a note to
the instrument case describing the nature of the
problem and carrying your name, address and phone
(extension) number. This will speed up the repair work.
Maintenance
This instrument needs no special maintenance if porperly used. A
moist cloth will clean it. Use a soft detergent (water plus 1 %
detergent) for the removal of persistent dirt. Remove grease with
benzine (petrol ether). Displays and display windows may only be
cleaned with a moist cloth.
Use no alcohol, solvents or abrasives! Under no cir-
cumstances any fluid must enter the instrument. Other
than the specified cleaning materials may affect plastic
or lacquered surfaces.
Overtemperature protection
If an internal temperature of 75 .. 80 degrees C is exceeded the
outputs and the displays will be turned off. This will be indicated
by 3 blinking dashes in the left and right displays. As soon as the
displays return to the normal display of the values set the
instrument will again be ready to operate. The outputs will remain
disabled until the pushbutton OUTPUT
is depressed.
Important hints