HGRBORNGR

PUMPGNTCCHNIK

ETSX4

Technical specification

Operating voltage:

Power consu mption:

Power rating, max.:

Rated voltage, max.:

Radiated interference:

Interference immunity:

Degree of protection:

Ambient temperature:

Casing:

Operating pressure:

Electrical connections

18V-30V/DC

35W

500VA/5A

250 VAC

EN 50081-2

EN 50082-2

IP65

50° C

ABS

5 bar

Setting times

Range Time[s]

2,5

4,0

6,0

8,0

9,0

10,0

11,0

12,0

13,0

14,0

15,0

16,0

17,0

18,0

19,0

20,0

Time selector

switch

Terminals to

connect:

- solenoid

valve

- floating relay

- sensor

- power supply

Electronic protection against unlubricated

operation (ETS) as compact unit or wall

mounting for fresh water pumps

The electronic protection against unlubricated

operation by using an oscillation fork sensor prevents

unlubricated operation of the mechanical seal and

protects consequently the function of the pump.

An oscillation fork sensor notices the medium level

close to the mechanical seal. It guarantees that the

sliding surfaces are submerged in the medium before

commissioning and during operation.

If the mechanical seal is surrounded by medium, the

motor can start the pump. If this is not the case, the

oscillation fork sensor notices this situation. Then the

electronic system of the ETS X4 / ETS X4 W, which is

installed at a selectable place (for example in a control

panel), prevents starting the motor. Simultaneously a

solenoid valve is activated to discharge the air around

the mechanical seal. Aflow of medium is the result.

As soon as the oscillation fork sensor recognizes the

required medium, the electronic system closes the

solenoid valve and starts the motor again.

A high-grade steel filter prevents a blockage of the

solenoid valve.

A ball valve at the ETS X4 (compact unit) allows a

manual ventilation of the rear wall after cleaning the

filter strainer of the pumps UNIBAD.

The electronic protection against unlubricated

operation is not suitable for ventilating the complete

pipeline system.

The switching time can be changed between 2,5 s and

20 s by a selector to adapt to different conditions.

This time is shown on a seven segment display.

ETS X4 = Compact unit (UNIBAD)

ETS X4 W = Wall mounting (UNIBAD, UNBLOCK GF)

Advantages

Manual ventilation before commissioning is possible

Automatic ventilation of the rear wall during

operation

Noswitchingonof the pumpwithout ventilation

No switching on of the pump without suction-side

inlet

Floating exit for water shortage and

pump disconnection

Ventilation above the mechanical seal

Materials are suitable for chlorine and brine water

No blockage of the solenoid valve