DOR_Pressure Sensors and Cables_04 Aug 2020.pdf

Description of Requirement

For

PRESSURE SENSORS AND CABLES

W81EWF00451639

Product/Service Description

The U.S. Army Corps of Engineers (USACE) Engineer Research and Development Center (ERDC) Coastal and Hydraulics Laboratory (CHL) Coastal Observation and Analysis Branch (COAB) requires Pressure Sensors and associated cabling as part of a sensor suite to support its efforts to remotely characterize and measure dynamics within the swash zone, the dynamic area of the beach where waves run up and down. The high-resolution in-situ depth provided by these instruments will be used to validate stereo camera and lidar surface elevations. They will be part of a novel configuration of new technologies to measure 4D surface elevation point clouds (𝜂,𝑥,𝑦,𝑡) in the swash zone. By measuring and spectrally decomposing forcing terms, infragravity and incident wave interaction and/or alongshore-variable pressure gradients can be shown to be a driving force of alongshore current generation. The instruments will also be applicable for other future research as well.

The instrumentation must meet the high quality of data standards met by other instruments in use at the Field Research Facility (FRF) located in Duck, NC. They also must align with other in-situ sensors being used for this work. The oceanographic pressure sensors must have analog and RS-232 output in order to be precisely synchronized with each other. Analog is the only communication that will work for this purpose across the necessary cable lengths (150m). RS-232 is also necessary to program the sensors. The sensors must be pre-calibrated in sealed containers with calibration to equate voltage to pressure in order to avoid additional labor, equipment, and expertise to calibrate them upon their deployment. In addition to the above factors, the sensors must be able to sample pressure values at high frequencies (up to 16 Hz) in order to fully capture in-situ measurements at rates that can validate remotely sensed measurements. The sensors must be able to fully survive and perform in the wet, turbid, surf-zone environment. Good technical support from the vendor also is necessary should any questions arise during deployment. Sensors must have all the above aspects.

Therefore the acquisition must include Brand Name or Equal to:

Sea-Bird Manufactured Items A. 9 SBE 50 Digital Oceanographic Pressure Sensors (Part # 50.1121S) B. The sensors should include titanium housing, 20 meter strain gauge pressor sensors, wet-pluggable MCBH connectors, 0-5 Volt analog and RS-232 output, power/interface cable, Seasoft software, and supporting documentation.

C. 12 sets of 8’ of cable 6 pin pigtail/wet-pluggable connectors (MCIL-6FS PIGTAIL / 32515B Harmonized) – Part# 171513

Sea-Bird Electronics, INC 13431 NE 20th Street Bellevue, WA 98005 POC: Jennifer Zimmerman - Email: jzimmerman@seabird.com - Phone: 561-578-0184

OR

Valeport Manufactured Items A) 7 VA500RA 500Khz altimeter (Part # 0430005), titanium housed with right angled sensor.

Supplied with 50cm pigtail interface lead, operation manual and transit case B) 2 VA500RAP 500Khz altimeter (Part # 0430006-10) with 0.01% accuracy pressure sensor, titanium housed with right angled sensor. Supplied with 50cm pigtail interface lead, operation manual and transit case. Note: XX on code denotes transducer range. Select from ranges of 10, 20, 30, 50, 100, 200, 300, 400 and 600bar.

C) Pigtail 50cm – Male Line 10 pin Subconn with sleeve (Part # 0400EA11), for connection to instrument. (Subconn parts MCIL10M and NSW DLSA-M)

Ocean Marine Industries, INC 2810 Hudson Street Chesapeake, VA 23324 POC: Jeanne Dorsey – Email: jdorsey@oceanmarineinc.com – Phone 757-382-7616

Shipping of the products to CEERD-HFA (Duck, NC)

Delivery Delivery of the Pressure Sensors and cables to:

U.S Army Corps of Engineers Field Research Facility

CEERD-HFA

1261 Duck Rd.

Duck, NC 27949

As noted above, the vendor should charge for shipping of the unit.

Delivery should take place as soon as possible but NLT 12/31/2020.

Warranty and Maintenance The vendor shall provide a standard commercial warranty. The vendor will provide assistance regarding any troubleshooting with the products.