How To Use The Simrad Pi Charger - Simrad PI50 - REFERENCE MANUAL REV A Reference Manual

Simrad PI50

How to use the Simrad PI Charger

Figure 43 The PI Charger set up to charge a
PI sensor
• On every sensor the polarity of the fastening lugs are engraved on the sensor
body using + and – characters.
Ensure that mounting materials do not short circuit the charging lugs.
2
• This may be ropes, wires, chains or other items that obstruct or short circuit the
electrical connections.
3 When the charger is connected to the sensor, check the charger lamps.
• Once connected, the charger will identify whether the sensor connected can be
fast charged or not. This is shown by the yellow lamps. If the top lamp flashes
rapidly, the sensor is fast charged.
• If your sensor can be fast charged, the charger will also check the internal
temperature of the sensor. The temperature is shown on the "thermometer" on
the charger's front panel. If you charge a sensor that can not be fast charged, this
"thermometer" does not work.
4 Observe the charge times and temperature limitations!
• Fast charge: The PI Charger will first recharge the sensor battery for
approximately one hour to reach 70% battery capacity, then approximately three
hours to reach 100% capacity. Once fully charged, a constant trickle charge
will compensate for self discharging.
194
The Simrad PI Charger is an
intelligent battery charger for
fast and secure charging of all PS
and PI sensors. The charger will
automatically set up the correct
charging current depending on
the sensor type and the battery
temperature. A "fuel meter" shows
the status of the battery during the
charge.
Even though the PI Charger is
designed for fast charging of the
PI sensors, it can also charge the PS
sensors, but only at normal charge
rate.
Daily operation
1 Attach the charging clamps to
the sensor as follows:
• Red clamp: Positive (+)
fastening lug
• Black clamp: Negative (–)
fastening lug
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