Scheduled Service Outage - Oct. 23 (9 - noon ET)

Please be aware that on Monday, October 23rd, BCO-DMO will conduct a scheduled outage on all systems and services between 9AM & noon ET. For more information, see the full notice.

Instrument: LI-COR LI-192 PAR Sensor

Instrument Short Name: LI-COR LI-192 PAR
Instrument Description:

The LI-192 Underwater Quantum Sensor (UWQ) measures underwater or atmospheric Photon Flux Density (PPFD) (Photosynthetically Available Radiation from 360 degrees) using a Silicon Photodiode and glass filters encased in a waterproof housing. The LI-192 is cosine corrected and features corrosion resistant, rugged construction for use in freshwater or saltwater and pressures up to 800 psi (5500 kPa, 560 meters depth). Typical output is in um s-1 m-2. The LI-192 uses computer-tailored filter glass to achieve the desired quantum response. Calibration is traceable to NIST. The LI-192 serial numbers begin with UWQ-XXXXX. LI-COR has been producing Underwater Quantum Sensors since 1973.

These LI-192 sensors are typically listed as LI-192SA to designate the 2-pin connector on the base of the housing and require an Underwater Cable (LI-COR part number 2222UWB) to connect to the pins on the Sensor and connect to a data recording device.

The LI-192 differs from the LI-193 primarily in sensitivity and angular response.

193: Sensitivity: Typically 7 uA per 1000 umol s-1 m-2 in water. Azimuth:

192: Sensitivity: Typically 4 uA per 1000 umol s-1 m-2 in water. Azimuth:


PI supplied instrument name: LI-COR LI-192 light sensor
Dataset-specific description

cosine-corrected quantum light meter (Li-Cor LI-192 attached to an LI-1400)