HydroRad
Configuration Overview
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Base Models

HydroRad model numbers, from the HydroRad-1 to the HydroRad-4, indicate how many separate collectors they support, from 1 to 4.  An 'E' suffix indicates that one of the collectors is embedded on the HydroRad housing and the remaining ones (if any) are mounted on fiber optic cables.  For example, a HydroRad-E1 has one embedded collector, while a HydroRad-E2 has one embedded collector and 1 fiber optic cable, and a HydroRad-4 has 4 fiber optic cables.  A "D" suffix indicates a double-embedded unit with embedded collectors on both ends, and no external fiber optic cables.

# Channels # Embedded Channels # Fiber Optic Channels Model
1 - 1 HydroRad-1
2 - 2 HydroRad-2
3 - 3 HydroRad-3
4 - 4 HydroRad-4
1 1 - HydroRad-E1
2 1 1 HydroRad-E2
2 2 - HydroRad-D2

 
Collectors
Collector Type Notes
Planar Irradiance Cosine response -- must specify if 
response should be optimized for 
either in-air or immersed measurements
90� Planar Irradiance Response perpendicular to cable
Scalar Irradiance 2 collectors and 2 Fiber optic cables
 required to make measurement
Radiance 3.2� FOV in air, 2.4� in water
90� Radiance Measures perpendicular to cable

 

Spectrometers

Spectrometer / Grating

 Min Wavelength Max Wavelength Pixel Resolution
Standard 350 850 0.30-0.35
Near Infrared 400 1000 0.30-0.35
High-Resolution Composite-grating 250 1050 0.40-0.45

(more details)

 
Depth Transducers
Sensor
(psia)		 Max Depth
Reading (m)		 Resolution
(m)		 Temperature 
Drift (m)		 Max Rated
Depth (m)
50 24 0.01 0.17 65
200 127 0.05 0.68 200
300 195 0.08 1.03 200
None For surface-use only

 
Other Options
Option Available Configurations
Memory 64MB(Standard), 128MB, 256MB, 512MB
Shutter Port Required for long-term mooring use with HydroShutters 
Slave Port Required for Daisy-chaining another HydroRad 
Cage Rectangular cage protect instrument and
enables user-configurable mounting of collectors on fiber optic cables.
Deployment
Cable		 Electronic cable, available any length up to 200 meters long, with or without strain relief eyes.

Copyright © 1998-2002 by Hydro-Optics, Biology, & Instrumentation Laboratories
All rights reserved.
All specifications subject to change without notice.
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