Section 4: Deploying and Operating SBE 19plus V2
61
OutputFormat=0 (raw frequencies and voltages in Hex)
Data is output in the order listed, with no spaces or commas between
parameters. Shown with each parameter is the number of digits, and how to
calculate the parameter from the data (use the decimal equivalent of the hex
data in the equations).
1. Temperature
A/D counts = tttttt
2. Conductivity
conductivity frequency (Hz) = cccccc / 256
3. Strain-gauge pressure sensor Pressure (if PType=1)
A/D counts = pppppp
4. Strain-gauge pressure sensor temperature compensation (if PType=1)
pressure temperature compensation voltage = vvvv / 13,107
5. Quartz pressure sensor pressure (if PType=3)
pressure frequency (Hz) = pppppp / 256
6. Quartz pressure sensor temperature compensation (if PType=3)
temperature compensation voltage = vvvv / 13,107
7. External voltage 0 (if Volt0=Y)
external voltage 0= vvvv / 13,107
8. External voltage 1 (if Volt1=Y)
external voltage 1 = vvvv / 13,107
9. External voltage 2 (if Volt2=Y)
external voltage 2 = vvvv / 13,107
10. External voltage 3 (if Volt3=Y)
external voltage 3 = vvvv / 13,107
11. External voltage 4 (if Volt4=Y)
external voltage 4 = vvvv / 13,107
12. External voltage 5 (if Volt5=Y)
external voltage 5 = vvvv / 13,107
13. SBE 38 secondary temperature (if SBE38=Y)
SBE 38 temperature (°C, ITS-90) = (tttttt / 100,000) – 10
14. GTD #1 pressure (if GTD=Y or DualGTD=Y)
GTD #1 pressure (millibars) = pppppppp / 100,000
15. GTD #1 temperature (if GTD=Y or DualGTD=Y)
GTD #1 temperature (°C, ITS-90) = (tttttt / 100,000) – 10
16.
GTD #2 pressure (if DualGTD=Y)
GTD #2 pressure (millibars) = pppppppp / 100,000
17. GTD #2 temperature (if DualGTD=Y)
GTD #2 temperature (°C, ITS-90) = (tttttt / 100,000) - 10
18. Time (Moored mode [MM] only)
seconds since January 1, 2000 = ssssssss
Example: Profiling mode, strain-gauge pressure sensor, 2 external voltages sampled,
example scan = ttttttccccccppppppvvvvvvvvvvvv
= 0A53711BC7220C14C17D8203050594
• Temperature = tttttt = 0A5371 (676721 decimal);
temperature A/D counts = 676721
• Conductivity = cccccc = 1BC722 (1820450 decimal);
conductivity frequency = 1820450 / 256 = 7111.133 Hz
• Pressure = pppppp = 0C14C1 (791745 decimal);
pressure A/D counts = 791745
• Pressure sensor temperature compensation =
vvvv = 7D82 (32,130 decimal);
Pressure temperature = 32,130 / 13,107 = 2.4514 volts
• First external voltage = vvvv = 0305 (773 decimal);
voltage = 773 / 13,107 = 0.0590 volts
• Second external voltage = vvvv = 0594 (1428 decimal);
voltage = 1428 / 13,107 = 0.1089 volts
Notes:
• If you will be using SEASAVE to
acquire real-time data, you must set
OutputFormat=0.
• When using Seaterm232’s Upload
menu, Seaterm232 always uploads
data from memory in raw hex,
regardless of the user-programmed
format, providing the data in a format
that SBE Data Processing can use.
• Our software uses the equations
shown to perform these calculations;
alternatively, you can use the
equations to develop your own
processing software.
• The pressure sensor is an absolute
sensor, so its raw output includes
the effect of atmospheric pressure
(14.7 psi). As shown on the
Calibration Sheet, Sea-Bird’s
calibration (and resulting calibration
coefficients) is in terms of psia.
However, when outputting pressure
in engineering units, the 19plus V2
outputs pressure relative to the
ocean surface (i.e., at the surface
the output pressure is 0 decibars).
The 19plus V2 uses the following
equation to convert psia to decibars:
pressure (db) =
[pressure (psia) - 14.7] * 0.689476
• Although OutputFormat=0 outputs
raw data for temperature,
conductivity, etc., it outputs
engineering units for SBE 38 and
GTD data.
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