DVP LB.40WR 운영 및 유지보수 지침 매뉴얼 - 페이지 13

{카테고리_이름} DVP LB.40WR에 대한 운영 및 유지보수 지침 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. DVP LB.40WR 20 페이지. Vacuum pumps with recirculating lubrication system

WARNING

Always install an intake filter, especially if the pump is to work with air that might contain foreign

matters.

Pump outlet gases must be treated in such a way that they do not contaminate the working environment and the

surrounding atmosphere. If condensable vapours are pumped in, the discharge hose should be routed downwards and

have no bends to prevent the condensate produced in the discharge line from building up or flowing back into the pump.

Never use friction hoses with hose diameters smaller than the intake diameter. Avoid exceeding hose lengths, tight

bends or bends spaced too closely together.

WARNING

Do not insert outlet fitting pipes or devices that block or impede the disposal of outlet gases (max

overpressure exhaust 0.3 bar).

4.9.3

WIRING

WARNING

Check that network voltage and frequency correspond to values contained on the motor rating plate.

The connection cable must be adequate for the power absorbed by the pump (absorption values are shown on the

pump motor rating plate) taking into account the environmental conditions of operation.

HAZARD

Always ground the pump.

Always install a security system between the pump and the electric power supply. Pump absorption values are

shown on the motor rating plate.

The pump is normally supplied without an electrical cable and switch. For electrical connection, see the diagram

contained within the terminal board or on the motor rating plate.

WARNING

Check that the direction of rotation is correct before starting the pump for the first time or after

changing the electrical connections.

The correct direction of rotation is indicated by the arrow on the pump (see ch. 3.3). Pump operation

with a rotation direction that is opposite to that indicated can severely damage the pump itself.

4.9.4

The electrical oil level gauge signals when the oil level inside the tank rises above the maximum level signalled.

Oil level gauge characteristics are as follows:

• VOLTAGE SWITCHING: Max 250Vdc & Vac

• CURRENT SWITCHING: Max 0.5 Adc / Max 0.7 Aac

• CONTACT RATING: Max 50VA

WARNING

The signal from this device may NOT be used to directly drive the motor.

8702037 – 01/01/2011 – R.0

Operating and Maintenance Instructions

LB.5WR – LC.25WR – LB.40WR – LB.60WR – LC.105WR