SON NRMAF0002300758.docx

STATEMENT OF NEED

1. PURPOSE:

Procure 2 each Masterflex IP digital dispensing pump system with open-head sensor and easy-load head. Specifically, Masterflex model number MFLX7771526, with no substitutions.

2. SCOPE OR MISSION:

We are a multidisciplinary environmental research laboratory that provides scientific understanding to inform the use and management of Great Lakes and coastal marine environments

3. BACKGROUND:

This is for pumping water from the lake to a collection vessel. Using a peristaltic pump and is a less invasive pumping method to ensure phytoplankton and zooplankton cells do not rupture during the collection process. A 0.6 - 26,000 ml/min pump is needed to efficiently collect water during sampling missions.

4. TECHNICAL SPECIFICATIONS:

> Masterflex IP digital pump system with open head sensor and easy-load head, model number MFLX7771526.

> Graphical LCD shows four operating modes: continuous run, timed dispense, copy dispense, volume dispense > View pump performance continually

> Menu-driven interface lets you select one of seven languages for programming and operation

> Dispense by Volume in mL (0.001 to 99999 mL), L, or gal; Copy—1 to 9,999 dispense cycles; or Time—time interval of on/off cycles (1 sec to 99 hr, 59 min, 59 sec per cycle)

> Reversible motor—purge tubing before or after pumping; pump fluid in either direction > Brushless, maintenance-free motor offers ±0.1% speed control accuracy with a 6000 to 1 turndown ratio

> Remote control capabilities via watertight connection:

> Speed control input scalable 0 to 20 mA, 4 to 20 mA, or 0 to 10V

> Pumping direction requires open collector or contact closure

> Start/stop/purge requires open collector or contact closure

> Tachometer output scalable 0 to 20 mA, 4 to 20 mA, 0 to 10V, open collector

5. DELIVERY SCHEDULE:

Request delivery NLT 1 July 2023

6. SPECIAL REQUIREMENTS:

None