United Process Controls PROTHERM 50, Руководство по эксплуатации

Страница: 6 / 28

UNITED PROCESS CONTROLS GMBH Page 5 Protherm 50 P68.230
Operation
The handling of the PT50 takes place over a combined press-turn-button and with the LCD-display. The
language can be switched between German, English and French. Through the hierarchical structure of
the handling with main.- and sub menus, the parameters of every function are easily selectable.
After switch-on the display shows the device name, the software version and the name of the menu
layout. A pressure on the know shows the main menu; turning the know shows the sub menus. With the
pressure of the know the sub menu will be selected. Within the sub menu the selected parameter can
be reached by turning the knob.
The sub menu „back “ leads into the main menu again.
The access to the device is structured in three access-levels:
1. The display-level.
In this level, each parameter can be shown, with exception of the passwords in the Menu „ac-
cess-control “. An alteration of setpoint values or configuration-data is not possible.
2. The setpoint-level.
The setpoint-level allows the display of all parameters exactly like in the display-level, however
the regulator-setpoints and some few values used frequently can be adjusted additionally.
3. The configuration-level.
Additionally to the values of the setpoint-level, all configuration-data and parameters as well as
the passwords of the access-control can be adjusted here.
The selection of the different access-levels takes place in the Menu „options “with the parameter „pass-
word “. There are different passwords for setpoint- and the configuration-level, which can be set in the
configuration-level in the Menu „access-control“. In the delivery status the password is “0” for the set-
point- and “1” for the configuration level.
The password is the only value, which can be entered in the display level. By turning the knob select the
“Password” and press the knob. By turning the knob again select the password for the setpoint- or the
configuration level. With a press on the knob the password is entered.
The different levels have only a limited lifetime, which starts with every user action. When there is no
action within the lifetime, the controller goes to the display level. The lifetime for the configuration level
is fixed to 5 minutes. The lifetime of the setpoint-level can entered in the menu “access control”. With a
value of 0 it is possible to disable the lifetime control.
For the setting of the other values use the same procedure as for entering the passwords.