General Specifications
Topside Units
Maximum Depth Exposure (minimum crush depth)
50m
50m
50 m
Volume
400 ml
480ml
400 ml
Mass
335g
600g
325g
Weight in Water
-65g
-120g
-75g
Absolute Maximum Range
500m
300m
300m
Typical Maximum Usable Range
500m
300m
300m
Apparent Yaw/Azimuth resolution
0.1°
0.1°
0.1°
Apparent Elevation angle resolution
0.1°
0.1°
0.1°
Slant range measurement resolution
0.1m
0.1m
0.1m
IMU Euler angle accuracy, typical (magnetic errors not included)
2°
2°
2°
Slant range error accumulation
1 m/hr
-
-
Update rate
1 Hz
1 Hz
1 - 5 Hz, range dependent
Ping Frequency
-
25kHz
-
Transmit Acoustic Power Level, typical, re: 1uPa
at 1 meter distance
185dB
V-in power
5V to 28V DC, ~1.5 Watt (note 1)
5V to 28V DC, ~1.5 Watt (note 1)
5V to 28V DC, ~1.5 Watt (note 1)
Serial Comms Voltage Levels
3.3V TTL or
5V TTL, auto sense
3.3V TTL or
5V TTL, auto sense
3.3V TTL or
5V TTL, auto sense
Ethernet, megabits/sec
10/100
10/100
10/100
Deepside Units
Maximum Depth Exposure (minimum crush depth)
300 m
300 m
300m
Volume
400 ml
400 ml
250 ml
Mass
300g
300g
440g
Weight in Water
-100g
-100g
170g
Transmit Acoustic Power Level, typical, re: 1uPa
at 1 meter distance
185dB
185dB
185dB
V-in Power Allowable Voltage, DC
5V to 28V (note 1)
5V to 28V (note 1)
10V to 28V (note 2)
V-in Power @5V
1.4W
1.7W average 2.9W peak
-
V-in Power @16V
not given
1.3W average, 4.1W peak
3W
V-in Power @28V
1.6W
not given
not given
Serial Comms Voltage Levels
3.3V TTL or
5V TTL, auto sense
3.3V TTL or
5V TTL, auto sense
3.3V TTL or
5V TTL, auto sense
Ethernet, megabits/sec
-
-
10/100
Note 1: Voltage is specified at the terminals of the printed circuit board of the device, user must ensure there is sufficient voltage after the cable voltage drop. Power supplies for all units must be able to supply burst currents to prevent drop-out and erratic operation. While the Mk II/Mk III transmitters will work with a low impedance 5V supply we recommend using 9V or higher, unless you know how to figure out if your 5V power supply is low-enough impedance.
Note 2: Voltage is specified at the terminals of the printed circuit board of the device, user must ensure there is sufficient voltage after the cable voltage drop. Power supplies for all units must be able to supply burst currents to prevent drop-out and erratic operation. The Mk V transmitter can run at a ping rate of up to 5 Hz, and during the ping event at high rates it can draw a large current burst (up to 3A depending on supply voltage and wiring impedance) for a very short time (500 uS). An ROV battery can easily accommodate these bursts. A simple PoE injector or power supply may brown out during these events, which will cause the transmitter to reboot. For bench testing we recommend turning off high-rate pinging.
Note: Resolution ≠Accuracy! See accuracy expectations.
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