The 16-020 and 16-050 heat exchangers that are used with many Physical Electronics X-ray sources require a minimal amount of preventive maintenance to ensure that they provide sufficient cooling power. Typically, the only maintenance that is performed is that the water filter and deionizer cartridge are replaced when the leakage current starts to creep up above 3-to-5mA. The deionizer cartridge helps to maintain the high resistivity of the distilled water that is circulated out to the x-ray source and back to the water tank via the radiator heat exchanger. As shown in the pictures at the bottom of this post, one thing that is not obvious but should be checked once a year is the space between the cooling fan (in the 16-020) or fan blade (in the 16-050) and the radiator heat exchanger. Dust can collect on the fins of the heat exchanger radiator, which in turn can significantly reduce the cooling capacity of the heat exchanger. Heat exchanger radiator cleaning procedure: Replacement parts for the heat exchanger (such as the deionizer and filter cartridges, flow switch and pump) are available from RBD Instruments at this link: Heat exchanger deionizer parts

If the pump has been replaced it needs to be adjusted to the proper flow rate. For the original Procon pumps you need to remove the acorn nut to get access to the adjustment screw. The new RBD replacement pumps do not have an acorn nut. Turn the screw CW to raise the flow rate and CCW to lower the flow rate. There are 2 possible flow rates depending on which model of X-ray source(s) you have on your system. If you have only the standard 04-500 or 04-548 15kV dual anode X-ray source, the flow rate should be set to 1.8 GPM. If you have just the 10-550/560/610 mono source, the flow rate should be set to .9 GPM. If you have both the standard 04-500/548 and a 10-550/560/610 mono source then the pressure should be set to .9 GPM. Note that the flow rate is measured with the source(s) connected. The 16-050 has a built-in flow meter which makes this adjustment easy. In the case of the 16-020 (which does not have a flow meter), you need to either 1. Insert a flow meter in series for this adjustment

2. Simply disconnect the outlet of the last source in the string and drain the water into a clean bucket for 1 minute and then measure the amount of water that you collect. It is important to use a clean bucket so that you can reuse the water. If you have leakage current problems with your source, we have found that draining all the water out of the heat exchanger and X-ray sources and replacing the water with distilled water from a grocery store will restore the water to the correct resistance. The deionizer cartridge (if it is still in good condition) will then maintain the water quality. To test for leakage current, increase the voltage on the X-ray source high voltage supply to 15kV with no power to the filaments and see what the leakage current is. Typically the leakage current should be less than 2mA if the deionizer is working properly. If the leakage current starts to get up to 3-to-5 mA then it is time to replace the deionizer cartridge. For mono sources it is recommended that the deionizer cartridge be replaced whenever the anode is replaced even if the leakage current is fine.

Keeping the heat exchanger radiator clean will help the X-ray source to run cooler, and that will extend the anode lifetime. Christmas & New Years Special ! hunter air purifier 30500 reviews6BR 5BA Pool, on Beach 5 Star Family Favouritehoneywell quietcare air purifier 17000 Pool House Suite with AC ceiling fan screens private terrace pool yoga shalaphilips air cleaner hr 4383 This listing was first published here in 2006. Date last modified - Friday, September 23, 2016 Three services to protect your trip: Protect your payments in case you need to cancel. Travel with peace of mind. Ensure you're prepared in case of accidental damage. Share this property via Email You must be signed in to share this property by e-mail

Share this property via EmailVillas & Vacation Rentals HAVEN'T FOUND YOUR PERFECT VILLA?There's more to explore! California - Napa and Sonoma Use map to filter results Get Inspired with trip ideas & villa collections!8' (750 and 990 gallon) Approximately 60" from ground Two rubber torsion axles with electric brakes; 550 gallon = 3500#; 750 gallon = 5200#; 990 gallon = 6000#; EZ Lube axles standard 550 gallon = 15" 6-hole silver modular wheels with ST225/75R15 Load Range D tires and hub covers (Qty: 4); 750 & 990 gallon = 16" 8-hole silver modular wheels with ST235/80R16 Load Range E tires and hub covers (Qty: 4); Compartment at front of trailer with lockable doors For the weight of this particular model, please download and reference Trailer Weight Index for utility trailers. A 550, 750 or 990 gallon fuel tank with baffles in the tank to reduce fuel movement is standard with Model 1570. It also includes a sight gauge, gasoline powered transfer pump, 35’ long retractable hose reel with fuel nozzle, fuel filter, drain plug and enclosed compartment with lockable doors.

Additional Features & Benefits Jack crank type with wheel LED clearance lights (Qty: 9) Two LED stop/turn lights Baffles in tank to reduce fuel movement Sight gauge to easily determine fuel level Gasoline powered transfer pump (40 gallons per minute) 35' long retractable hose reel with fuel nozzle Featherlite, Inc. reserves the right to change or alter these specifications without notice. Dimensions shown are approximate and may vary. Some trailers shown with optional equipment. See a Featherlite dealer for most up-to-date specifications and options. August 2006, Volume 41, Issue 2, pp 147–153High-speed imaging of an ultrasound-driven bubble in contact with a wall: “Narcissus” effect and resolved acoustic streamingResearch ArticleFirst Online: 08 December 2005Received: 04 July 2005Revised: 25 October 2005Accepted: 26 October 2005DOI: 10.1007/s00348-005-0080-yCite this article as: Marmottant, P., Versluis, M., de Jong, N. et al. Exp Fluids (2006) 41: 147.

AbstractWe report microscopic observations of the primary flow oscillation of an acoustically driven bubble in contact with a wall, captured with the ultra high-speed camera Brandaris 128 (Chin et al. 2003). The driving frequency is up to 200 kHz, and the imaging frequency is up to 25 MHz. The details of the bubble motion during an ultrasound cycle are thus resolved, showing a combination of two modes of oscillations: a radius oscillation and a translation oscillation, perpendicular to the wall. This motion is interpreted using the theory of acoustic images to account for the presence of the wall. We conclude that the bubble is subjected to a periodic succession of attractive and repulsive forces, exerted by its own image. Fast-framing recordings of a tracer particle embedded in the liquid around the particle are performed. They fully resolve the acoustic streaming flow induced by the bubble oscillations. This non-linear secondary flow appears as a tiny drift of the particle position cycle after cycle, on top of the primary back and forth oscillation.