Nor-Cal CDG 160 OP Lit - Manual (Page 27)

CDG160-OP-LIT (2010-06) 27
4.3 Switching Functions
The two switching functions can be set to any pressure within
the measurement range of the gauge (
→  14).
The current setpoint setting
• is output at the D-Sub connector instead of the measurement
signal (
→  20) 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 lid solid and the corresponding relay
(
→  20) is energized.
Measurement signal (pressure p)
Time t
Me
asu
rem
ent va
lue
Off On
Hysteresis
(1% F.S.)
Off
Threshold value
Setpoint