Atten AT6011 Руководство пользователя - Страница 5

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To view the screen from the best angle, there

are three different positions (C, D, E) for

setting up the instrument. If the instrument is

set down on the floor after being carried, the

handle automatically remains in the upright

carrying position (A). In order to place the

instrument onto a horizontal surface, the

handle should be turned to the upper side of

the Spectrum Analyzer (C). For the D position

(10 inclination), the handle should be turned

to the opposite direction of the carrying

position until it locks in place automatically

underneath the instrument. For the E position

(20 inclination), the handle should be pulled

to release it from the D position and swing

backwards until if locks once more. The

handle may also be set to a position for

horizontal carrying by turning it to the upper

side to lock in the B position. At the same time,

the instrument must be lifted, because

otherwise the handle will jump back.

Safety

This instrument has been designed and tested

in accordance with IEC Publication 1010-1,

Safety requirements for electrical equipment

for measurement, control, and laboratory

use. The CENELEC regulations EN 61010-1

correspond to this standard. It has left the

factory in a safe condition. This instruction

manual contains important information and

warnings which have to be followed by the

user to ensure safe operation and to retain the

Spectrum Analyzer 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 l (three-conductor

power cord with protective earthing conductor

and a plug with earthing contact). The mains/

line plug shall only be inserted in a socket

outlet provided with a protective earth contact.

The protective action must not be negated by

the use of an extension cord without a

protective conductor. The mains/line plug

should be inserted before connections are

made to measuring circuits. The grounded

accessible metal parts (case, sockets, jacks)

and the mains/line supply contacts (line/live,

neutral) of the instrument have been tested

against insulation breakdown with 2200VDC.

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 11) between the

mains/line outlet and the power plug of the

device being investigated. Most cathode-ray

tubes develop X-rays. However, the dose

equivalent rate falls far below the maximum

permissible value of 36pA/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).

Operating conditions

The instrument has been designed for indoor

use. The permissible ambient temperature

range during operation is + 10 (+50 F)~

+40

(+104 F). It may occasionally be

subjected to temperatures between +10

(+50 F) and -10

(+14 F) without

degrading its safety. The permissible am

bient temperature range for storage or

transportation is -40

(-40 F)~+70

(+158 F). The maximum operating altitude

is up to 2200m (non-operating 1500m). 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. extremely cold spectrum

analyzer) 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,

dusty, or moist environments. The spectrum

analyzer 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 the tilt

handle.

Warranty

ATTEN warrants to its Customers that the

products it manufactures and sells will be free

from defects in materials and workmanship for

a period of 1 years. This warranty shall not

apply to any defect, failure or damage caused

by improper use or inadequate maintenance

and care. ATTEN shall not be obliged to

provide service under this warranty to repair

damage resulting from attempts by personnel

other than ATTEN representatives to install,

repair, service or modify these products.

In order to obtain service under this warranty,

Customers must contact and notify the

distributor who has sold the product.

Each instrument is subjected to a quality test

with 10 hour burn-in before leaving the

production. Practically all early failures are

detected by this method. In the case of

shipments by post, rail or carrier it is

recommended that the original packing is

carefully preserved. Transport damages and

damage due to gross negligence are not cover

by the warranty.

In the case of a complaint, a label should be

attached to the housing of the instrument

which describes briefly the faults observed. If

at the same time the name and telephone

number (dialing code and telephone or direct

number or department designation) is stated

for possible queries, this helps towards

speeding up the processing of warranty claims.

Maintenance

Various important properties of the Spectrum

Analyzer should be carefully checked at

certain intervals. Only in this it largely certain

that all signals are displayed with the accuracy

on which the technical data are based.