Issue link: https://onenorgren.uberflip.com/i/1463811
Model # Evacuation Time in Seconds Based on 1 Cu. Ft. Volume /"Hg 0"Hg 3"Hg 6"Hg 9"Hg 12"Hg 15"Hg 18"Hg 21"Hg 24"Hg 27"Hg 28"Hg N60H 0.00 15.00 29.80 50.60 74.20 102.80 135.90 183.20 245.90 410.20 790.80 N150H 0.00 2.30 3.80 6.50 10.20 14.10 21.30 44.90 55.00 81.00 125.00 Model # Evacuation Time in Seconds Based on 1 Liter Volume/mbar (0 mbar) (102 mbar) (203 mbar) (305 mbar) (406 mbar) (508 mbar) (609 mbar) (711 mbar) (813 mbar) (914 mbar) (948 mbar) N60H (0.0) (0.5) (1.1) (1.8) (2.6) (3.6) (4.8) (6.5) (8.7) (14.5) (27.9) N150H (0.0) (0.1) (0.1) (0.2) (0.4) (0.5) (0.8) (1.6) (1.9) (2.9) (4.4) Evacuate Vessel and Vacuum Lines Find Total System Volume Application #2 Assumptions: Desired Vacuum level: 28"Hg [948 mbar] Evacuation time: 5 minutes or less Vessel volume: 2 cu ft [50 liters] Vacuum line: 3/8" ID, 3 ft length [10mm ID, 100cm length] 1. Add vessel volume + tubing volume (See Application 1.1 & 1.2) 2 cu. ft + 0.0023 cu. ft. = 2.0023 cu ft. [50 liters + 0.078 liters = 50.078 liters] 2. Go to Evacuation Time chart – find desired vacuum level. (Assumption: 28"Hg [948 mbar]) (Note: Chart is based on Evacuation in seconds.) 3. To find required time, start with smallest generator first. (Assumption: Evacuation Time - 5 minutes or less.) Multiply cu. ft. [liters] x Evacuation Time in Seconds / divide by 60 for minutes Model # 60H = (2.0023 x 790.8) / 60 = 26.39 min. - over 5 minutes (Metric) = (50.078 x 27.9) / 60 = 23.29 min. - over 5 minutes Model # 150H = (2.0023 x 125) / 60 = 4.17 min - under 5 minutes (Metric) = (50.078 x 4.4) / 60 = 3.67 minutes - under 5 minutes Answer: Depending on the style of generator and options needed, choose from either the NVP Series or NJ Series generators – both series have the ability to meet your application requirements. A I R S U P P L Y V A C U U M Evacuate Vacuum Lines Between Vacuum Cup and Generator Application #1 Assumptions: Desired Vacuum level: 28"Hg [948 mbar] Evacuation time: 10 seconds or less Vacuum line: 3/8" ID, 3 ft length [10mm ID, 100cm length] 1. Volume = Area of Tubing ID x Length p d 2 x L = p (1cm) 2 x 100cm = 78 cm 3 2. Convert cu. in. to cu. ft – divide by 1728 3.976 / 1728 = 0.0023cu. ft. (volume of tubing) [Convert cu. cm to liters - divide by 1000 78 / 1000 = 0.078 liters (volume of tubing)] 3. Go to Evacuation Time chart – find desired vacuum level. 28"Hg = 790.80 seconds per cu. ft. [948 mbar = 27.9 seconds per liter] 4. Multiply cu. ft (0.0023 x 790.80) = 1.82 seconds [Multiply liters (0.078 x 27.9) = 2.17 seconds] Answer: Depending on the style of generator and options needed, choose from either the NVP Series or NJ Series generators – both series have the ability to meet your application requirements. p d 2 p(.375) 2 x L = x 36" = 3.976 cu. in. 4 4 4 4 ] ] Application #1 Application #2 09 For more information or for additional configurations, please contact us at NASInsideSales@imi-precision.com