prepASH Operating Instructions
Precisa
Ref01.i
7
3.4.2 Rear controls and connections
DANGER
The ashing device is operated from a 230 V AC supply. The electrical wiring work should
be carried out by a qualified electrician.
The exhaust gas hose must be fed outdoors in order to discharge harmful waste gases
from the furnace chamber safely.
CAUTION
The pneumatic system for the prepASH must not be operated on pure oxygen (danger of a
strong reaction between oxygen and oil).
1
2
3
4
5
6
The oil-free compressed air can be connected to the
maintenance unit (3). You are advised to use a compressed-air
hose with an inner diameter of 6 mm.
Use the controller (1) and the pressure gauge (4) to adjust the
pressure in line with the pneumatic supply to the device.
Check the filter (5) at regular intervals for dirt and condensation.
The filter must be emptied manually to ensure that no
condensation enters the device (6).
The pneumatic system can be vented or disconnected from the
compressed air network via the switch-on valve (2).
7
The process gases can be fed in via the terminal connections
(7) with hoses (DxTh. / 4x0.75mm). The compressed air inlet
(AIR) is connected to the maintenance unit in the factory.
CAUTION
working with oxygen and nitrogen.
8
9
10
11
The supplied hose is fitted to the exhaust gas nozzle (8) using
the clip, and the other end is fed into an exhaust system.
A PC can be connected to the COM1 serial port (9), and an
external balance can be connected to COM2 (10).
A printer can be connected via the parallel port LPT1 (11).
12
13
The supplied plug must be fitted by an electrician. The pre-
assembled mains cable can be inserted into the plug connector
(12).
The miniature circuit breaker (13) causes the device to cut out
in the event of an overload. Once the fault has been
investigated and rectified, the miniature circuit breaker can be
pushed back in.
AIR
