Omega Vehicle Security FPU500 manual Variances in Normalized Flow Rate mL per Revolution

Specifications 9

	Table 9-2. Average Flow Rates (Cont’d)
Tubing Wall	Tubing Size	mL per	Minimum Flow	Maximum Flow
Thickness	Inner Diameter	Revolution	Rate at 600 RPM	Rate at 600 RPM
			(mL/Minute)	(mL/Minute)
1.5 mm	3.0 mm	0.8*	8	482
1.5 mm	4.0 mm	1.43*	15	857
1.5 mm	5.0 mm	2.1*	21	1257
1.5 mm	6.0 mm	2.7*	27	1607
1.5 mm	7.0 mm	3.6*	37	2187
1.5 mm	8.0 mm	3.9*	39	2316

* Metric mL per Revolution numbers are rounded off

Normalized flow rates (mL per revolution) vary significantly, based on motor speed, tubing materials, and mechanical tolerances in pump dimensions. In addition, the variances are different for the different tubing dimensions. Variances from the normalized flow rates of Table 9-2 are shown below. The data is shown for new tubing only.

Tubing operating life tests are done at 600 RPM, with 20°C water, 0 PSI back pressure until the tubing breaks

Table 9-3. Variances in Normalized Flow Rate (mL per Revolution)

Tubing Size	Due to	Between Pumps	Due to Different
Inner Diameter	Motor	(due to Mechanical	Tubing Materials
(in.)	Speed	Tolerances)
1⁄32	±10%	±25%	±20%
1⁄16	±10%	±15%	±15%
1⁄8	±10%	±10%	±5%
3⁄16	±5%	±10%	±5%
1⁄4	±5%	±15%	±5%
5⁄16	±15%	±20%	±10%

9-3