1. General
647C
To switch the unit on again press the ]ESC] key once or twice until the main menu appears. The
±15 V power supply voltage is switched on simultaneously, e.g. external devices will be powered
again. All setpoint outputs are switched to –0.5 V to prevent any erratic gas flow or pressure
control.
Caution
When switching off the unit via the (0) POWER OFF menu/function the
power supply to the flow devices and pressure transducer is de-
activated. Consider that the units may need certain warm up time when
being re-powered.
To switch off the instrument completely use the rear panel power switch (press side “0”). All
settings remain stored and after switching power on again the setpoint outputs of all channels are
pulled down to –0.5 V.
Note: Do not switch off the line power as long as the message “Please Wait” appears on the
screen. If you do so all settings are completely reset.You would have to configure the unit again
completely.
Note: The display is switched off automatically after the time out period as set in the menu
SYSTEM SETUP , LCD ON TIME has passed. If you are not certain in which state the unit is with
LCD being dark, you can first press the [ESC] key and use the line power switch only when you are
sure that the unit was switched off completely.
1.9 Symbols at the case
The device may show some symbols, which are explained here:
-
The “!” ( ) says to watch the documentation/manual.
-
The type label gives information about the device type, the serial number and some
technical date.
-
The label close to the fuse holder tells the specification of spare fuses: T2A, 250V.
1.10 Accessories
The 647C comes with the following accessories:
-
Sub-D connector sets for the instruments:
4 channel device:
ZB-19
8 channel deivce:
ZB-20
-
Power
cable: Y-0984492
-
Manual:
Y-1957647
-
2*handles
for
the
case:
Y-5150011
-
4*screws
for
the
handles:
Y-1600005
8
Содержание 647C
Страница 14: ...1 General 647C 10 This page left blank...