Ivoclar-vivadent EP 600 Combi User Manual download pdf (Page 26)

26

6.1 Switching on/off

Put the I/O switch at the rear of the furnace

on position "I". The furnace is now switched

on and the EP600 logo appears on the

display. Subsequently, the unit conducts a

self-test to check the basic functions. The

course of the self-test is shown by means of

a status bar. If the self-test does not reveal

any errors or malfunctions, the preheating

phase is started. The preheating phase

prepares the furnace for optimum

temperature control. The self-test and

preheating phase together take 30 minutes.

After the preheating cycle has been

completed, the unit is ready for operation.

The main menu appears.

Important information

If the temperature in the ﬁring

chamber is above 300 °C (572 °F)

at the time when the furnace is

switched on, only a self-test is

conducted. The preheating phase

is not started.

Important information

When changing from the press

furnace mode to the ceramic

furnace mode (or vice versa),

please keep in mind that the corresponding

stand-by temperature must be present. If the

stand-by temperature does not correspond

with the standard value (ceramic furnace:

403 °C (757 °F); press furnace 700 °C

(1292 °F) the display will show a

corresponding error message.

6.2 Standard press programs

1 Select the desired program and type of

investment ring.

2 Open furnace head with the

corresponding key (112).

3 Place preheated investment ring, ingot,

and Alox plunger in the furnace.

4 Press START; the LED of the start key

lights up (the process is automatically

started).

5 Once the press cycle has been completed,

the furnace head opens automatically

and the buzzer sounds. Immediately

remove the investment ring from the

furnace. Place it on the cooling grid to

cool. The program returns to the initial

position only after pressing STOP. Until

that point, the press time and press cycle

is shown. Close the furnace by pressing

'Close furnace head'.

Important information

Please use the separate cooling

grid and not the sagger tray of the

furnace.

Important information for the

IPS e.max and IPS Empress Systems

Various examinations have shown

that the time taken to remove the

investment ring from the preheating furnace

and to place it in the press furnace

signiﬁcantly inﬂuences the press results.

This process should not take more than

1 minute. If it takes longer, the investment

ring will cool down too much and miscasts

may result.

In addition, make sure to open the furnace

head only immediately before placing the

investment rings in the furnace to prevent

the ﬁring chamber (heater, stone lining, and

in particular the ﬁring plate) from cooling

down too much.

6.3 Firing programs

The ﬁring programs are selected in the main

menu "Firing".

Without program memory card

Page 1

With program memory card

Page 1

Page 2

1 Select the desired program.

2 Adjust the program parameters, if

necessary

3 Open furnace head and place the objects

in the furnace.

4 Press START; the LED of the start key

lights up. The program has now started.

5 After the completion of the program, the

furnace head opens automatically and

the buzzer sounds as soon as the ﬁred

object may be removed.

Important information

For further information about the

ﬁring programs (one-step, two-step

programs), please refer to Chapter

10.4 and 10.5 on page 37–38.

6. Practical Use

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