Ashcroft GC30 Ultra-Compact Differential Pressure Sensor - Manual (Page 8)

8
4. wIrING
Cable wire colors are shown below. Power on after checking connections. When on, wait at
least 5 minutes before performing a zero point adjustment or measurement to ensure system
is stabilized.
Cable color
Brown: Power (+)
Blue: Power (–)
Black: Open collector output (OUT1)
White: Open collector output (OUT2)
Orange: 1-5Vdc output (+)
Analog Output (1-5VDC)
NPN Type Switch function (wiring to relay)
NPN Type Switch function (wiring to Photo Coupler)
NPN Type Switch function (Voltage Output)
GC30 (Brown)
(Black-White)
(Orange)
1-5Vdc
(Blue)
Load 10k ⍀ min.
Power (+)
Power (–)
GC30
(Brown)
(Black-White)
80mA max.
(Blue)
Power (+)
Power (–)
Relay Output
Relay
Protective transistor diode
(ensure to install)
Note: Ensure that the relay’s operation coil rated current
and voltage are within the transistor’s rating.
GC30
(Brown)
(Black-White)
80mA max.
(Blue)
Power (+)
Power (–)
Photo coupler
Open collector output
Electric current resistance
GC30
(Brown)
(Black-White)
80mA max.
(Blue)
Power (+)
Power (–)
Voltage HL output
(High/Low)
Pullup resistance