KNF SC 920G, Operating Instructions Manual

Page: 23 / 48

Vacuum Pump System SC 920G Operating vacuum pump system
Translation of original Operating Instructions, English, KNF 121308-121311 07/18 23
8. Operating vacuum pump system
8.1. Hand terminal
8.1.1. General functions and displays
1 Upper grip
2 Touchscreen
3 I/O switch
4 DC input 24 V
5 Rotary/push knob for

adjusting pump speed
and setpoint pressure

switching to manual
operation
Fig. 7: Hand terminal
The vacuum pump system is operated via the hand terminal with
the aid of:

a rotary/push knob

a touchscreen.
The rotary/push knob has the following functions:

Rotate: Changes pump capacity or the selected pressure
setting (depending on selected operating mode).

Press: Interrupts the active process and switches into manual
process control (pressing effects an evacuation in this case).
Touchscreen contents:

Display of the most important process variables (Fig. 8, page
25).

Menu for selecting operating mode and units for pressure
display (Fig. 9, page 25).

Operating buttons (Fig. 9, page 25) with the following func-
tions:
−
Start and stop the process;
−
open and close the ventilation valve;
−
open and close the high-performance condenser's coolant
valve (accessory).
Removing and replacing the hand terminal