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Larval Aquaculture Water Quality Monitoring Unit and Oxygen Control Panels


Location
Iowa
Publication Date
02/08/2019 11:01 AM EST
Closing Date
02/22/2019 01:00 PM EST
Issuing Organization
State of Iowa - Department of Natural Resources
Solicitation Number
Description

Specifications include, but are not limited to: The monitoring unit must continuously monitor dissolved oxygen (DO), pH, and temperature in the recirculating aquaculture system and store data for downloading at intervals. The Oxygen Control Panels must provide oxygenation of larviculture tanks during power interruptions/failures and when below set point. This is a complete system with capability to call out via cellular phone or for future connection to a PLC existing in the facility. Design Conditions and Performance requirements: a) Monitoring and Control System: Oxyguard Pacific Main and Combi Unit(s). i) Display, processing and input units: (1) Color LCD touch screen display for all probe values in one screen view. (2) Will be configured to act as a call out alarm system. Rathbun will provide the SIM card and cellular plan. (3) Future communication port for wired communication to a Modicon PLC system existing in building via Ethernet connection. Wireless technology will not be used. (4) Data ports and storage: log and store data from all probes for one month or greater between data downloads onto USB flash memory. (5) User programmable set points: minimum and maximum set points to warn/alarm and to activate oxygen back up individually by tank. (6) 110 v plug power corded for connection to standard 110 V outlet that is about 6 ft from unit mounting location. (7) Provide Monitor program back up on a USB flash drive. ii) Inputs to Monitor – probes and flow meters to provide: (1) Oxyguard galvanic dissolved oxygen probes: Five (5) probes – located in Larviculture Tanks (LCT) 1, 2, 3, 4, 5. Temperature sensor included in DO probes. (2) One (1) pipe insertion type OxyGuard DO probe to place down stream of oxygenation cone in a side loop with service valve. Provide appropriate PVC TEE and probe mountings to completely seal probe in PVC pipe under pressure. (3) One (1) pH: located in MBBR Sump and wired to the Combi Unit. (4) Three GF Sygnet flowmeters Model 3-2537-6C-P0 Type 2537 Rotor-X; Current output (4 to 20 mA), PP Body, Titanium Pin, .5" - 4" pipe. Include appropriate PVC fitting for meter insertion into pipes. (a) 2 flow meters will mount on 2” pipe, bidder provide fittings, cable length about 8 feet to Combi unit location. (b) 1 flow meter will mount on 3” pipe, bidder provide fittings, cable about 30 feet from Combi Unit or 32 feet from the Pacific unit. (5) Receive a 24 VDC Digital signal from a VFD (WEG CFW 08 Vector Inverter) on a motor Control Panel.

Source
http://bidopportunities.iowa.gov/?pgname=viewactivebids (opens in a new window)

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