Manual revision 005
Section 4: Deploying and Operating SBE 63
SBE 63
29
Deployment
Integration with SeaCAT CTD
(SBE 16
plus
V2, 16
plus
-IM V2, or 19
plus
V2)
Prior to installing the SBE 63 on the CTD, verify that the SBE 63 is set up as
follows (see
Section 3: Preparing SBE 63 for Deployment
for details on
communicating in Seaterm232; see
Command Descriptions
above for
command details):
•
SetBaud=
to baud rate set in CTD (always 1200 for 16
plus
-IM V2)
•
SetEcho=1
•
SetAvg=1 to 16; recommended value is 2
•
SetFormat=1
•
SetAutoRun=0
For use with the SBE 19
plus
V2 in Profiling mode, verify that <SerPause> in
the
GetSD
or
GetHD
response is 1 (factory set). For the 19
plus
V2 in Moored
mode, or for the other SeaCATs, <SerPause> can be set to 0 or 1.
Install on the CTD as follows:
1.
Install the SBE 63 in the sensor mount:
A.
Align the 4-pin connectors and push the SBE 63 onto the mount.
B.
Install the two #10-24, 1/2” titanium cap screws from the back of the
sensor mount to secure the SBE 63 in the mount.
2.
Mount the SBE 63 on the CTD. Install Tygon tubing to connect the
SBE 63 inline between the CTD conductivity cell outlet and the pump
inlet. Verify that the large arrow on the sensor mount is pointing in the
direction of the flow (flow enters through the conductivity cell, and exits
from the pump).
SBE 63 – 4-pin
connector
Sensor mount –
4-pin connector
Sensor mount
flow arrow
Install
cap
screws
(2)
Note:
In the
CTD
, set:
•
Pump mode to 2 (
PumpMode=2
).
•
Delay before sampling
(
DelayBeforeSampling
=) to
25 sec at 15
°
C to 40 sec at 0
°
C
(linear interpolation between those
values). This provides enough time
for the SBE 63 to equilibrate after
pumping begins, before the
measurement is made.
In the CTD, the interval between
samples (
SampleInterval=
) must be
> the sum of the times required to
sample. Total time is affected by:
- Minimum time for CTD to take a
sample (≈ 2.5 sec).
- Time for integration of optional
Quartz pressure sensor
(
ParosIntegration=
).
- Time for CTD to take and average
NCycles=
samples; samples are taken
0.25 sec apart.
- Delay after providing power to
external sensors before sampling
(
DelayBeforeSampling=
); described
above.
-
Delay after sampling before turning
off power to external sensors
(
DelayAfterSampling=
).
For the 16
plus
-IM V2, commands are
preceded by
#ii
(ii=ID).
