Description of Requirements.pdf

Description of Requirement

PI Name: Richard Johansen

Branch: EL EEC Branch

Date: 24 July 2020

Quantity: Six YSI EXO data sondes and water quality probes

General Description: EXO 2 data sondes and probes provide the ability of EL researchers to measure water chemistry in rivers and lakes. EL researchers currently have five EXO series sondes that have similar probe configurations, software, and peripheral accessories required to operate the data sondes. A new research project, focused on harmful algal blooms, requires the purchase of these additional data sondes. These six data sondes will be equipped with conductivity, temperature, pH, dissolved oxygen, total algae-phycocyanin, and a central wiper. Additional probes are being procured to upgrade current systems. Calibration solutions are included in this contract to calibrate all sensors.

The minimal needs for this equipment are that the multi-parameter sonde has ports for 6 sensors and a central wiper. The sondes must be capable of unattended deployment. All ports must be rated to IP-67 waterproof level. Each sonde must have integrated wireless communication. All probes must be compatible with the sonde head and must have wet-mateable connectors. All probes must have a titanium housing. The data sonde must accept probes that measure: conductivity, temperature, pH, dissolved oxygen, total algae-phycocyanin, and be equipped with a central wiper.

Manufacturer: YSI

Equipment Includes:

Item Description Quantity

599502-01 sonde 6 sensor port, 1 wiper port water quality data sonde

599827 Wiped conductivity/ temperature sensor

577602 pH sensor assembly 7

599100-01 Optical dissolved oxygen sensor 6

599102-01 Total Algae- phycocyanin sensor 7

599090-01 Central Wiper 6

603824 pH Buffer calibration set 3

607200 Turbidity standard 10 NTU 3

607300 Turbidity standard 100 NTU 3

599564 Antifouling guards for sondes 6

626210 ProDSS Total Algae- Phycocyanin 4

599101-01 Turbidity sensor 6

Shipping 1

Shipment will be to:

Richard Johansen 3909 Halls Ferry Rd Vicksburg, MS 39180