Operation Manual

Sensor test procedures
269
850-165186 / Rev.B
Spread & Remote sensors test procedure
Tools and equipment required
• Multimeter
• A small piece of wire
• PI Service Hydrophone (Order no. 314-204480)
• PI System
Initial check and setup identification
On both sensor types, keep the area between the negative
charging lug (A) and the water detector (B) clean to reduce the
risk of activating the sensor. If necessary, apply silicon grease to
disrupt conductive paths.
1 On both sensors, use a multimeter to check the voltage
between the negative charging lug (A) and the water
detector (B). Make sure the sensor is charged:
- Fully discharged: Voltage less than 11.5 Vdc
- Fully charged: Voltage greater than 13.5 Vdc
- Approximately 50% capacity left: 12.8 Vdc
2 With a small piece of wire, complete the circuit between
the sensor’s sea water detector (B) and negative charging
lug (A).
- The sensor will respond by flashing its individual LED
identification codes.
(1) = One long flash: It has a duration of
approximately 1 second.
(2) = One start flash: This signals that the first digit of
the channel number is next.
(3) = None, one, two or three short flashes: The
number of short flashes signifies the first digit of the
configured channel number.