![Welch LVS 300 Z Скачать руководство пользователя страница 10](http://html.mh-extra.com/html/welch/lvs-300-z/lvs-300-z_operating-manual_953922010.webp)
Description
10
115041
3
Description
3.1
Design and Function
3.1.1
Laboratory-Vacuum-Systems
The Laboratory Vacuum Systems are supplied as a ready-mounted unit.
The chemical-resistant diaphragm pump
(4)
with gas ballast valve
(17)
is fitted to the base
plate of the column
(3)
and attached on the suction-side to the separator
(7)
to protect the
pump from foreign matter and on the pressure-side to the emission condenser
(6)
to recover
the condensate. This ensures that hazardous substances are separated out. The safety
valve on the emission condenser protects against an impermissibly high operating pressure
on the outgoing air end.
The complete vacuum controller, with sensor, venting valve and power unit
(5)
, is fitted in the
column
(3)
. The LVS 310 Z ef, order no. 115244-04, is an exception. In this case, the vac-
uum controller is available as an external device for installation in laboratory furniture,
see
chapter 3.1.4.
The manually regulated LVS-variant does not have a controller.
All exposed glass components
(6, 7)
are coated with transparent plastic as protection
against bursting. The emission condenser is supplied with insulation.
The power switch
(12)
and the plug for the power cable
(11)
as well as the membrane pump
(10)
, the PC
(13)
control lead
(14)
, inert gas
(16)
and the water valve (option)
(15)
are lo-
cated on the right of the column.
The LVS types are specially preconfigured according to model.
1
Suction side connection
hose nozzle for hose DN8
Fig. 1a LVS 310 Z - Front view
2
Control valve
(LVS - automatically regulated)
3
Column complete
on swivelling foot
4
Diaphragm pump MPC 301 Z
5
Vacuum controller 521
(in the column or extern)
6
Emission condenser KD 500/5 insulated
at the pressure side with safety valve
and cooling water connections
7
Separator
(round-bottomed flask) suction side
8
Cooling water
(feed flow/back flow)
Fig. 1b LVS 310 Z - Rear view
9
Connection outgoing air
hose nozzle for hose DN8
10
Connection Pump
(pump)
11
Connection non-heating device power
cable
(main in)
12
Main switch
(power)
13
Connection PC
(RS 232)
14
Connection control cable
LVS - automatically regulated (sensor)
15
Connection water valve
16
Connection inert gas
17
Gas ballast valve