streamer; secure by wrapping with Bulldog tape.
Figure 9. Sheet lead, tin snips, and Bulldog tape.
3.3
Battery Charging
A new DHA-7/MicroEel Battery Pack should be charged for a minimum of 20 hours
prior to use. In addition, the temperature when the charging occurs should be between 41
to 77 degrees F (5 to 25 degrees C). If charging takes place above 77 degrees F (25
degrees C), the time required for a full charge will increase and the potential recharge
cycles will be reduced.
The procedure for charging the battery pack is as follows.
1)
Plug the battery charger into an AC outlet and connect the 4-pin connector on the
charger cable to the 4-socket connector on the battery pack. Open the battery
pack enclosure vent located between the case latches to allow gas venting during
the charge cycle.
2)
Switch the battery pack power switch to the ON position (the power switch must
be ON to charge the internal batteries from the external charger). The VOLTAGE
and CURRENT meters will turn on and indicate the status of the batteries.
3)
The charger changes the recharging mode based on the state of the batteries, as
well, the values of the VOLTAGE and CURRENT meters will vary depending on
the cycle mode of the charger. There is an LED on the charger to indicate
charging status.
A lit LED indicates that the charger has power and is properly functioning.
An orange LED indicates that the charger is in charging mode with a constant
current of approximately 1.5 Amps.
A flashing LED indicates that the charger is in deep-discharge charging pulse
mode and charging starts at 0.5V DC, giving pulse currents up to 5V DC. This
has the effect of removing loose sulphation formed during the deep-discharge
MicroEel Solid Analog Streamer Operation Manual
Page 14 of 18
Rev. C 050612 du
