PB-900 Series Programmable Jar Testers

These jar testers improve precision with four operator-programmable memory banks that provide virtually unlimited stirring capabilities. Each memory bank may be programmed with paddle speeds from 5 to 300 rpm in 1-rpm increments and run times from 1 second to 59 minutes, 59 seconds in 1-second increments. Turning the stirrer off does not erase the programmed information. The stirrer may be run independently in any one of the memories, continuously at a selected speed or sequentially through the memory banks. Running it in sequential mode permits automatic transitioning from a fast mix/short run to a slow mix/long run, or any combination or speeds and times desired to replicate actual plant conditions and operation.

• Available in benchtop six-paddle and portable two- and four-paddle versions
• Built on a powder-coated steel uniframe chassis
• Built-in flluorescent lamp floc illuminator in jar tester base
• Feature 2.54 × 7.62cm (1 × 3 in.) stainless steel paddles, spaced 15.24cm (6 in.) apart
• Allow for paddle adjustment to 22.86cm (9 in.) maximum depth
• Power: 24 VDC with 100–240 VAC adapter

Provides consistently reproducible results to assist water and wastewater treatment plants in determining optimal dosing for specific conditions