2.2.2 Power
Consumption
Each hydrophone preamplifier draws approximately ±10.8 mA per channel. Based on
this draw, a 12-channel streamer with 6.25 m group interval has a total current of
approximately 130 mA, and a 24-channel streamer with 6.25 m group interval has a total
current of approximately 260 mA. The battery pack, with two 5 Amp-hour batteries,
should have sufficient capacity to power the streamer for the desired length of time. If
the batteries are fully charged, a 24-channel streamer can be powered continuously for
approximately 19 hours (5 Amp-hours divided by 260 mA).
The actual operating time will vary depending on the state, temperature, and age of the
batteries. The ideal battery operation temperature is between 41 to 77 degrees F (5 to 25
degrees C). Long-term exposure to temperatures above 106 degrees F (41 degrees C) can
shorten the life of the batteries. As temperature decreases, the available battery capacity
and performance are reduced; however, this is not a permanent condition and capacity
will be recovered as temperature rises.
2.2.3 AC
Battery
Charger
The AC battery charger is suitable for use anywhere in the world with a universal input
from 90V AC to 264V AC. The output is 1.5 Amps constant current at 24V DC.
Depending on the recharging mode of the charger and the state of the batteries, output
levels will vary.
MicroEel Solid Analog Streamer Operation Manual
Page 12 of 18
Rev. C 050612 du
