SonTek/YSI Argonaut-XR Technical Manual - HydroScientific West

Argonaut Operation Manual Firmware Version 7.9 (May 1, 2001)
SonTek/YSI
6. Remove the second pad from above the battery pack and hold the housing at an angle to slide
out the battery pack (watch for cables and connectors).
7. Remove the third mounting pad from between the batteries and the dividing wall.
To install batteries, use the following steps.
1. Inspect the o-rings and surfaces on both the end cap and housing; replace the o-rings if
necessary.
2. Install the first foam pad next to the dividing wall to protect the internal wiring.
3. Slide the battery pack in, running the wiring along the side of the housing to allow access to
all connectors after installing the battery pack.
4. Insert the second foam pad on top of the battery pack.
5. Connect the battery pack wiring to one of the two power connectors on the internal wiring.
Connect the power and communication connectors from the internal wiring to the end cap.
6. Place all connectors on the pad above the battery pack.
7. Place the third pad on top of the connectors so all connectors are protected by the two pads.
8. Install the end cap, taking care to avoid trapping any wires between the housing and end cap.
Align the end cap such that the holes match the housing; no specific alignment is required.
You will need to apply some pressure to compress the pads when installing the end cap.
9. Secure with the three screws (use each screw with plastic isolator sleeve and washer) and
tighten snugly; do not over tighten as this can damage the threads in the pressure housing.
10. Connect the external cable to the Argonaut and establish communications to verify
instrument operation. If storing the instrument, place it in sleep mode using the PowerOff
command.
5.7.2. Argonaut XR and SL
Batteries for the Argonaut XR and SL are contained in a separate underwater housing. The
underwater housing is connected to the Argonaut using a special splitter cable (§5.5.2). The
Argonaut XR/SL battery housing contains one battery pack consisting of 24 D-cell batteries.
To remove the battery pack, use the following steps.
1. Perform all maintenance in a static safe environment.
2. Disconnect the splitter cable from the battery pack.
3. Remove the screws holding the end cap to the battery housing. Lift the end cap off the
housing. Because of the bore seal o-ring, it may be difficult to break the seal and remove the
end cap. If necessary, have one person hold the housing while another gently rocks the end
cap back and forth.
4. The battery housing is sealed using a dual o-ring seal (bore seal and boss seal); take care
whenever accessing the housing to protect the o-rings and o-ring surfaces from damage.
5. Disconnect the wire from the battery pack to the end cap.
6. Remove the screws holding the internal retaining plate to the top of the battery pack. Remove
the retaining plate from the battery pack.
7. Lift the battery pack from the housing.
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