System Operation Manual
SAT-DN-00434, Rev. B
LOBO
2017-05-16
Page 32 of 86
Copyright
2017 Sea-Bird Scientific. All rights reserved.
Table 7: SBE 37-SIP Specifications
Manufacturer
Sea-Bird Electronics
Model
SBE 37-SIP
Input Voltage
7
–
24 Vdc
Input Current
0.5 A
Measurement Ranges:
Conductivity
0
–
7 S/m (0
–
70 mS/cm)
Temperature
-5° to +35°C
Pressure
0
–
20 m
Initial Accuracy:
Conductivity
0.0003 S/m (0.003 mS/cm)
Temperature
0.002°C
Pressure
0.1% of full scale
Acquisition Time
0.66 seconds/sample minimum (programmable)
Serial Interface
RS-232 at 9600 bps
Dimensions (approx)
20.81” long x 2.65” diameter
Weight (in air)
9.2 lbs (excluding clamps)
Weight (in water)
6.2 lbs (excluding clamps)
If integrated by Sea-Bird Scientific, an ICD or other documentation describing the as-shipped configuration
of the SBE 37-SIP, with a procedure for reconfiguration if required, will be provided.
4.7
Aanderaa 3835 Oxygen Optode
The Oxygen Optode 3835 is a sensor manufactured by Aanderaa used to measure absolute oxygen
concentrations in water using optical methods. The operation of the optode is based on the luminescence
quenching principle, with a fluorescent indicator embedded in a gas permeable foil. A black optical isolation
coating protects the foil. Note that the orientation of the optode is not critical
–
the optode has no “field
of view” that can view objects outside the foil. It may be desirable to add a copper mesh covering (such
as
a scouring pad) or metallic copper tape to the optode to extend the duration between cleanings. Be careful
to avoid contact of dissimilar metals to prevent corrosion. Example specifications are summarized in Table
8.
Table 8: Oxygen Optode 3835 Specifications
Manufacturer
Aanderaa
Model
Oxygen Optode 3835
Input Voltage
+5 - +14 Vdc
Average Input Current
80 mA/S +0.3 mA, where S is the sample interval in
seconds
Oxygen:
Range
0
–
500 µM
Resolution
< 1µM
Accuracy
< 8µM or 5%, whichever is greater
Settling Time (63%)
< 25 seconds
Temperature:
Range
0° to +36°C
Resolution
0.01°C
Accuracy
±0.05°C
Settling Time (63%)
< 10 seconds
