WET Labs' UBAT sensor

Bioluminescence Assessment Tool (UBAT)

WET Labs' UBAT is designed to measure mechanically stimulated bioluminescence in both coastal and oceanic systems from 0–600 m in depth.

UBAT Features

  • Provides calibrated, high-resolution (60 Hz signal and 1 Hz average) measurement of mechanically stimulated bioluminescence for assessing water column ecosystem dynamics.
  • Field calibration light source is used to track sensor drift.
  • Modular design for easy cleaning.

Bioluminescence, in conjunction with other IOPs, can provide a more complete picture of spatial and temporal variability of the biogeochemical complexity of coastal and ocean ecosystems, especially the response of the planktonic community, to environmental fluctuations.



General dimensions  34.93 cm x 10.80 cm x 16.83 cm
Intake  3.81 cm ID; 5.08 cm OD
Weight (in air)  5.10 kg
Weight (in water)  1.64 kg
Pressure housing Acetyl copolymer plastic
Detection chamber  Molded acrylic and titanium dioxide (> 95% reflectance between 430–700 nm)
—Light-baffled air-bleed ports located at top of the detection chamber exhaust any air
Flow rate  0.330 ±0.03 L s-1
Chamber volume  0.440 L

Temperature range  4–38 deg C
Depth rating  600 m

Digital output signal  RS-232
Digital output resolution  16 bit
Baud rate  19200
Input voltage  9–18 VDC
Current, typical  600 mA
Sample rate  60 Hz sampling rate with 1 Hz data output rate
Connectors  MCBH-6-MP (power & communication), MCBH-3-FS (Validation LED)

Detectors  Photomultiplier Tube
Detection range  1.50e7– 6.7e13Photons s-1

Units  Photons L-1s-1

Specifications are subject to change without notice.

Download UBAT 20130410

Released April 16, 2013
UBAT_20130410.exe for Windows XP/Vista/7
Product Brochure

UBAT product drawing

Tuesday, February 12, 2013
Product Brochure

UBAT Brochure

Tuesday, February 12, 2013

What should I use to lubricate bulkhead connectors?

WET Labs recommends keeping the connectors on your meter lubricated using a good quality silicone spray lubricant, such as 3M Silicone Spray or Loctite 8021 spray. These can be purchased at your local hardware store. Avoid silicone grease. It is messy and attracts contaminants. 

Do not use WD-40. It will destroy connectors.

Do you want WET Labs to review your data?

In order for data questions to be answered in an efficient manner, WET Labs requests:

-  The serial number of the instrument data in question. The most current calibration information
can be verified and the instrument settings upon delivery can be checked.

-  Description of the deployment configuration. Questions to consider:

  •   What are the current instrument settings?
  •   What is the instrument orientation?
  •   Are there possible obstructions?
  •   Is it being used in a mooring, a profiler, or being towed?
  •   What were the deployment date and geographical location?
  •   How far into the deployment was the problem seen?
  •   What power supply and cabling are being used?
  •   What was the instrument condition during the last field service or retrieval?
  •   Do you have any pictures?

-  Raw data files of the physical data in question

  •   examples of good raw data.
  •   examples of questionable raw data .

-  Information about how the raw data was processed.