Aeroflex 2948B Betriebsanleitung PDF herunterladen (Seite 44)

INSTALLATION

2-3

Bail arm option

If the bail arm carrying handle is fitted, the Service Monitor will not fit into the optional

operational case, 46662/571. Do not attempt to attach the shoulder strap supplied with this

operational case to a Service Monitor fitted with a bail arm carrying handle.

Power requirements

The Service Monitor can be powered from both AC and DC power sources.

AC supplies must be within the range 100 to 240 V~, at a frequency of between 50 and 60 Hz; or

within the range 108 to 118 V~, at a frequency of between 50 and 400 Hz. The maximum power

consumption is 190 VA. Voltage selection is not necessary as the AC power supply module

within the Service Monitor is designed to handle this wide spread of input variations. For DC

operation, the Service Monitor requires a supply within the range 11 to 32 V. The maximum DC

power requirement is 100 W.

Fuses

The AC input circuit is fed through a single fuse fitted to the rear panel of the Service Monitor,

within the AC input connector. This should be a 2 A anti-surge, 5 × 20 mm glass cartridge fuse,

type T2AL250V.

The DC input circuit is also fed through a single fuse fitted to the rear panel of the Service

Monitor. This should be a 10 A anti-surge, 5 × 20 mm glass cartridge fuse, type T10AH250V.

Class I power cords (3-core)

General

When the equipment has to be plugged into a Class II (ungrounded) 2-terminal socket outlet, the

cable should either be fitted with a 3-pin Class I plug and used in conjunction with an adapter

incorporating a ground wire, or be fitted with a Class II plug with an integral ground wire. The

ground wire must be securely fastened to ground. Grounding one terminal on a 2-terminal socket

will not provide adequate protection.

In the event that a molded plug has to be removed from a lead, it must be disposed of immediately.

A plug with bare flexible cords is hazardous if engaged in a live socket outlet.

The instrument is a Safety Class 1 product and therefore must be earthed. Use the supplied power

cord or an appropriate replacement. Make sure that the instrument is plugged into an outlet socket

with a protective earth contact.

Disconnecting device

The detachable power cord is the instrument’s disconnecting device, but if the instrument is

integrated into a rack or system, an external power switch or circuit breaker is required. Whatever

the disconnecting device, make sure that you can reach it easily and that it is accessible at all

times.

Power cords with the following terminations are available. Please check with your local sales

office for availability.

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Aeroflex 2948B Betriebsanleitung Seite 44