Manual revision 001
Section 4: Deploying and Operating SBE 39
plus
-IM
SBE 39
plus
-IM
65
Setup for Deployment
1.
Install new AA cells (see
Replacing AA Cells and Desiccant
in
Section 5:
Routine Maintenance and Calibration
) or ensure the existing cells have
enough capacity to cover the intended deployment.
2.
Program the 39
plus
-IM for the intended deployment (see
Section 3:
Preparing SBE 39plus-IM for Deployment
for connection information; see
information in this section on commands and sampling modes):
A.
Ensure all data has been uploaded, and then send
#iiInitLogging
to
make the entire memory available for recording. If
#iiInitLogging
is
not sent, data will be stored after the last recorded sample.
B.
Set the date and time. Note that the date and time can be set for all IM
instruments on-line using a Group command prefix
(
#G0:DateTime=
) or individually for each IM instrument
(
#iiDateTime=
). To synchronize autonomous sampling for a system
with multiple IM instruments on a mooring cable, set the date and
time using a Group command prefix, with all the IM instruments on-
line (see
Autonomous Sampling (Logging Commands)
for details on
synchronization).
C.
Establish the setup and sampling parameters.
D.
If the system will have multiple IM instruments on the mooring cable,
verify that SeatermIM is set to
Use fixed ID
to allow use of
SeatermIM’s Send Commands window:
(1) In the Communications menu, select
Configure
.
(2) Click on
Use fixed ID
. Enter the 39
plus
-IM’s ID.
(3) Click OK.
E.
Use
one
of the following to initiate logging:
•
#iiStartNow
,
#iiStartInterval
,
#iiResumeLogging
,
#iiGetAvgRestart
, or
#iiGetLastRestart
to start logging now,
taking a sample every
#iiSampleInterval
seconds.
•
#iiStartDateTime=
and
#iiStartLater
to start logging at the
specified date and time, taking a sample every
#iiSampleInterval
seconds.
•
!iiSetGDataStr=
(to define the command sent to the acquisition
microcontroller when
GData
is sent) and then
GData
(to start
logging now for all IM instruments on-line, taking a sample
every
#iiSampleInterval
seconds).
3.
Close the housing if it was opened to install new AA cells or program the
39
plus
-IM via the internal USB connector -
Reinsert the electronics in the housing and close the housing, as described
in
Replacing AA Cells and Desiccant
in
Section 5: Routine Maintenance
and Calibration
.
4.
If you will be using SeatermIM to view occasional data samples while
logging, click Capture to save the data to a file. Note that this file
cannot
be processed by Plot39 or SBE Data Processing, as it does not have
the required format
.
Note:
For commands used to
start logging
now
(listed at right), logging actually
starts immediately,
(
#iiSampleInterval
/ 2), or
#iiSampleInterval
from when the start
logging command is received by the
39
plus
-IM, depending on the command
used. See the individual command
descriptions for the start timing.
CAUTION:
Before delivery, desiccant is placed in
the housing, on top of the battery pack,
and the electronics chamber is filled
with dry Argon gas. These measures
help prevent condensation.
To ensure proper functioning:
1.
Install new desiccant each time
you open the housing. Desiccant
capsule used in 39plus-IM cannot
be regenerated by heating.
2. If possible, dry gas backfill each time
you open the housing. If you cannot,
wait at least 24 hours before
redeploying, to allow the desiccant
to remove any moisture.
