245 mm
(9.6 in.)
44.5 mm
(1.75 in.)
299 mm
(11.8 in.)
22.4 mm
(0.89 in.)
9.3 mm
(0.37 in.)
9.3 mm
(0.37 in.)
18.5 mm
(0.73 in.)
2.5 mm
(0.10 in.)
39 mm
(1.54 in.)
diameter
23
41
Pin Signal
1 Ground
2 O2 signal
3 O2 return
4 Power
Standard connector:
XSG-4-HP-SS
Optional
wet-pluggable
connector:
MCBH-4MP (WB), TI
(3/8" length base,
1/2-20 thread)
1
2
4
3
69.9 mm
(2.75 in.)
13 mm
(0.51 in.)
69.9 mm
(2.75 in.)
SBE 43 Voltage Output Sensor
Sea-Bird Dissolved Oxygen Sensor
SBE 43
Sea-Bird Electronics, Inc.
1808 136th Place NE, Bellevue, Washington 98005 USA
Website: http://www.seabird.com
Email: seabird@seabird.com
Telephone: (425) 643-9866
Fax: (425) 643-9954
Signal resolution is increased by on-board temperature compensation. And because there is no ‘temperature‘ output
signal, a CTD channel is made available for other purposes.
Even when oxygen concentration is constant, the normal range of ocean temperatures causes the output of earlier sensors
to vary by a factor of two. The SBE 43’s internal temperature compensation eliminates this variation, allowing the sensor to
pre-amplify the signal proportionately; resolution with existing CTD systems is correspondingly doubled.
A 5-year warranty backs the sensor’s integrity. During the warranty period, one sensor re-charge (electrolyte refill, membrane
replacement, and recalibration — as mandated by chemical depletion of electrolyte) will be performed at Sea-Bird free of charge.
Configuration Options
The SBE 43 voltage output sensor can be integrated with any Sea-Bird CTD that accepts input from a 0 - 5 volt auxiliary
sensor (for example, SBE 9plus, 16, 16plus, 16plus-IM, 19, 19plus, or 25). SBE 43 configuration choices include:
• Housing: 7000-meter titanium or 600-meter plastic housing
• Connector: XSG or wet-pluggable MCBH connector
• Membrane: 0.5-mil (fast response, typically for profiling applications) or 1-mil (slower response but more rugged for
enhanced long-term stability, typically for moored applications)
The SBE 43F frequency output sensor can be integrated with an SBE 52-MP or used for OEM applications (requires OEM
circuit board). The SBE 43F is available with a 600-meter plastic or 7000-meter titanium housing.
Specifications
Measurement range: 120% of surface saturation in all natural waters, fresh and salt
Initial accuracy: 2% of saturation
Typical stability: 2% per 1000 hours (clean membrane)
Input power: 6.5 - 24 VDC, 60 milliwatts
Output signal: 0 - 5 VDC (SBE 43), frequency (SBE 43F)
Housing/depth rating: 600-meter plastic housing or 7000-meter titanium housing
(10,500-meter titanium housing available on request ⎯ contact Sea-Bird)
Weight (in air): SBE 43 — 0.7 kg (1.5 lbs) with titanium housing, 0.5 kg (1.0 lb) with plastic housing
SBE 43F — 0.4 kg (0.9 lbs) with titanium housing
12/07
SBE 43F Frequency Output Sensor
(for SBE 52-MP and OEM applications)
148
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