© 2019 Valeport Ltd
0660880d - miniCTD, miniSVP and miniTIDE
Page 10
3.3. Power
External
9 – 28V DC input
NB: battery should still be fitted even if external power is being used, to maintain clock
function
miniS VP / miniCT D
<250mW (20mA @12v)
miniT IDE
<200mW when sampling (16mA @12v)
Internal
Single “C” cell, either 1.5v alkaline or 3.6v Lithium
miniS VP / miniCT D
30 hours operation (alkaline)/90 hours operation (Lithium)
miniT IDE
38 days @ 40 sec / 10 min sampling (alkaline)
67 days @ 40 sec / 10 min sampling (Lithium)
3.4. Acoustic Frequency (miniSVP)
Single sound pulse of 2.5MHz frequency.
3.5. Memory
Each instrument is fitted with SD memory cards. This provides more than sufficient capacity for the operational life
of the battery pack.
3.6. Output
Units are fitted with both RS232 and half-duplex RS485 communications as standard, selected by pin choice on the
output connector. Protocol is 8 data bits, 1 stop bit, no parity, no flow control.
Baud rate is factory set to 115200. User may choose between 38400, 57600, 115200.
fast data rates may not be possible with low baud rates
3.7. Operating Modes
miniSVP
Continuous output at 1, 2, 4 or 8Hz
Profiling mode, every n.nn dBar, where n.nn is user defined
miniCTD
Continuous output at 1, 2, 4 or 8Hz
Profiling mode, every n.nn dBar, where n.nn is user defined
miniTIDE
Continuous output at 1 or 2Hz
Burst mode, using a choice of pre-defined patterns
