SonTek/YSI Argonaut-XR Technical Manual - HydroScientific West

SonTek/YSI
• The dual o-ring seals are exposed on the top of the transducer head. Whenever opening the
system, take care to avoid damage to all o-rings and o-ring surfaces. Clean and inspect
o-rings surfaces before closing the system; replace o-rings when necessary.
• The receiver board is mounted on three 3/8” standoffs directly from the transducer head. The
transducers are wired directly to the receiver board.
• The receiver board is electrically shielded from the other electronics using a copper plate
mounted on three ½” standoffs above the receiver board.
• The Argonaut processor (consisting of the analog and CPU electronics boards) is mounted on
four 1-3/16” standoffs directly from the transducer head. The two boards are separated using
four ½” standoffs, and are connected using an edge connector at one end of the board. See
§5.3 for a detailed description of the Argonaut processor.
The cables used to connect the different portions of the Argonaut are described below. For details
about the location of each connector on the Argonaut processor, see §5.3.
• A 16-pin ribbon cable connects the receiver board to the analog board. The cable uses the
same connectors at each end with pin-to-pin wiring, so it can be installed in either direction.
The keyed connectors can be installed in only one direction.
• A 2-wire cable from the temperature sensor connects to a keyed, 2-pin, red connector on the
analog board (labeled Temperature).
• A 5-wire cable directly from the pressure sensor (if installed) connects to a keyed, 5-pin, red
connector on the analog board (labeled Pressure).
• Power from the underwater connector on the Argonaut housing is connected to a keyed,
3-pin, red connector on the analog board. Power from the Battery supply pin is wired directly
to the analog board. Power from the External supply pin power is wired through an additional
voltage regulator (installed in the Argonaut housing) before reaching the connector on the
analog board. See §6.1 for details on the Argonaut input power specifications, and see §5.5.1
for details about wiring of the underwater connector.
• RS232 or RS422 serial communication is wired from the underwater connector on the
Argonaut housing to a keyed, 5-pin, red connector on the CPU board (labeled User).
• The power and RS232 interface cable for the compass/tilt sensor (if installed) is wired from a
keyed, 10-pin, red connector on the compass (mounted in the Argonaut housing) to a keyed,
5-pin, red connector on the CPU board (labeled Compass).
• A red, 3-pin connector on the CPU board is used for the RS232 interface to the optional
integrated CTD.
50
Argonaut Operation Manual Firmware Version 7.9 (May 1, 2001)