INFICON Edge CDG045D2 1 … 1000Torr / mbar - Manual (Page 29)

tina86e1 (2013-11) 29
4.3 Switching Functions
The two switching functions can be set to any pressure within
the measurement range of the gauge (
→  15).
The current setpoint setting
• can be read/written via the diagnostic port,
• is output at the D-Sub connector instead of the measurement
signal ( →  21) and can be measured with a voltmeter after
the <SP> button is pressed, or
• can be read/written via the RS232C interface.
If the pressure is lower than the setpoint, the corresponding LED
(<SP1> or <SP2>) is lit solid and the corresponding relay
(
→  21) is energized.
Measurement signal (pressure p)
Time t
Me
asu
reme
nt value
Off On
Hysteresis
(1% F.S.)
Off
Threshold value
Setpoint