Nor-Cal CDG 100 OP Lit - Manual (Page 27)

CDG100-OP-LIT (2010-1) 27

Push the <ZERO> button again:
Fine adjustment
within 0...3 s: the zero adjustment value changes
by one unit (push <ZERO> button in
intervals of 1 s)
Change of direction
within 3...5 s: the zero adjustment changes its
direction (the blinking frequency of
the <STATUS> LED changes
briefly)
If the <ZERO> button is released for more than 5 s, the
gauge returns to the measurement mode.
The <STATUS> LED blinks green if the signal output is negative
(< -20 mV).
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 lit solid and the corresponding relay
(
→  20) is energized.