Zhermack FURNACE DM 30, User Manual

Page: 161 / 272

FURNACE DM
161 of 272
MAINTENANCE AND USE MANUAL
EN
t
emperature range
Should even just one of the control and safety devices fail to operate properly
proceed – as far as is possible – as described in section 9.2 and contact you nearest
Authorised Servicing Centre.
Pressing START/STOP (20) deactivates the alarm and the word “OFF” appears on the display (11). It
is advisable to run a check on the programmed data.
You can now re-start the interrupted program.
If, of course, the cause of the alarm is not removed the same problem will occur as soon as the oven
is put back in use.
D. If the thermocouple breaks the following occurs:
• the flashing legend “tEmP” appears on the display (11).
• an overheating warning buzzer sounds.
• the elements are switched off.
In this event the thermocouple must be changed.
o
Ven SerieS
:
From
0°C
To
300°C
From
301°C
To
600°C
From
601°C
To
900°C
DM 30 with heating tubes 30 °C/min 25 °C/min 10 °C/min
DM 40 with heating tubes 30 °C/min 25 °C/min 8 °C/min
DM 50 with heating tubes 30 °C/min 25 °C/min 8 °C/min
DM 4 R 30 °C/min 25 °C/min 10 °C/min
DM 1 30 °C/min 25 °C/min 8 °C/min
DM 1 G 30 °C/min 25 °C/min 10 °C/min
7.3
DATA PROGRAMMING
A. The oven is OFF, as shown on the display (11).
The PHASE display (15) shows the number “1”.
B. Press PROG. SELECT. (12). The letter “P” appears on the display (11). Press key “1”.
The number “1” appears on the display (14).
C. Press PROG. (19).
The legend “Pro” appears on the display (11).
The green PROG. LED (27) starts flashing and continues to flash as long as the operator remains
in Data Programming mode.
7.2.1
Maximum temperature increase rate
To ensure that the oven cycle ends in accordance with the duration displayed at the end of PHASE 5
during programming, the operator must observe the maximum in-oven temperature increases
(expressed in °C/MIN) shown in the table below:
7.3.1
Entering data into program n.1