Apex Sensor Technology (AST)

Submersible Liquid Level Sensor

Key Specifications:

Measurement Range	0~0.5…500m H2O
Operating Temperature	-40…100°C
Accuracy	±0.1% F.S., ±0.25% F.S., ±0.5% F.S.
Pressure range	Up to 100 PSI
Pressure form	Gauge pressure and absolute pressure
Flow range	0.5...30 ft/sec
IP rate	IP68

Two wire configuration:

AST400	Verdi Junction Box
Red wire connects to →	5V (Pin 6)
Green/Blue wire (4-20 mA) connects to →	S1 (Pin 4) or S2 (Pin 2)
Yellow wire connects to →	GND (Pin 1 or Pin 3)

Note: add a jumper wire to connect pin 4 and 5 if using S1, Signal pin 4, Standard Sensors

Three wire configuration:

AST400	Verdi Junction Box
Red wire connects to →	5V (Pin 6)
Green/Blue wire (0-10 V) connects to →	S1 (Pin 4) or S2 (Pin 2)
Yellow and Black wire connects to →	GND (Pin 1 and Pin 3)