3
To switch a function on/off
SIEMENS
SIMATIC OP7
F1 F2 F3 F4
K1 K2 K3 K4
789
456
123
.
0 +/-
SHIFT
INS
DEL
HELP
ENTER
ACK
ESC
HELP
SHIFT
OP2605-040
• The machine must only be used as described in this hand-
book.
• The machine must only be used by personnel who have read
all the instructions contained in this handbook.
2.1 DESCRIPTION
The system consists of a control panel equipped with a display, keyboard and function keys.
This system enables temperature and humidity cycles to be carried out.
The system can operate Manually or Automatically.
2
THE OP7 SYSTEM
The concept of HUMIDITY always
refers to Climatic Chambers. If the
chamber is not a climatic chamber,
you may ignore the relevant
references.
1
WARNINGS
Numerical key-
board
Display
Function keys
(F2-F3-F4 not used)
To confirm
Movement
keys
To reset an alarm
To exit from a function
(and return to the selected page)
This push-button may not be
present according to the model
of the machine
When a temperature grade is set (Centigrades per minute), it is unadvisable to set a humidity grade.
The two quantities interfere with each other and therefore the temperature grade would be observed,
whereas the humidity grade would not.
The humidity grade should, therefore, be set only when the temperature is kept constant.
Please refer to the MOLLIER diagram to establish the test logic to be carried out for both temperature
and humidity.
Ambient temperature min: min: + 5°C
max + 45°C
Relative humidity RH max 80%
To enter or delete Help on line
SHIFT key warning light
HELP key warning light
START/STOP
Alarm in process
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