CleanBench Laboratory Tables
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Vibration Isolation Systems Setup Guide Laboratory Tables CleanBench Laboratory Tables This page is intentionally blank

Vibration Isolation Systems Setup Guide CleanBench Laboratory Tables Return to TOC Technical Manufacturing Corporation, Peabody, Massachusetts

CleanBench Laboratory Tables Vibration Isolation Systems Setup Guide CleanBench Laboratory Tables CleanBench™ (63-500) Series High-Performance Lab Tables Sliding Shelf (optional) Figure 1, CleanBench (63-500) Series High-Performance Lab Table Introduction The CleanBench (63-500) Series Laboratory Tables employ Gimbal Piston Isolators that require a continuous supply of compressed air or nitrogen to operate properly. For a complete discussion of the air supply requirements, see System Air Supply Requirements in introduction section of this document. Tools Required  Leveling wrench...

CleanBench Laboratory Tables Vibration Isolation Systems Setup Guide Air Supply Plumbing and Valve Setup Instructions Air Supply Input Connection Step 1 Plumb tubing between air supply and system’s input air filter as appropriate. Tubing can be connected to a 1/4 or 1/8 inch NPT female fitting as shown in figure below. Orange Cylinder Air Input Adapter 1/4” NPT Male to Straight Connector 1/4” OD Tubing 1/8” NPT Female 1/8” NPT Male Thread Figure 2, Air Supply Input Connection Connecting Insert the air tube firmly into the self-sealing fitting. Push the orange cylinder with your thumb and...

CleanBench Laboratory Tables Vibration Isolation Systems Setup Guide Note Each post is shipped with a short section of tubing with a union coupler already attached to the input elbow. This “pigtail” segment should not be tampered with. Each pigtail contains a small, flow-restricting orifice to damp table motion and stabilizes the load. Do not remove or change the location of these orifices. If lost or damaged, please contact TMC for replacement pigtails. Important Installing and Leveling TableTop Step 2 Ensure the main air supply is Off. Using the leveling wrench provided, adjust leveling...

CleanBench Laboratory Tables Vibration Isolation Systems Setup Guide Note Skipping the above step may compromise vibration isolation performance. Place tabletop slowly down symmetrically on deflated isolators to avoid any damage to isolators as shown in figure below. The top should be symmetric over the isolator frame. If the floor is uneven, one of the 4 isolators may not contact the payload. This gap should be closed by further lowering the leveling foot on the corresponding post. Caution The tabletops weigh approximately 275-300 pounds. Take proper precautions. Height Control Valve...

CleanBench Laboratory Tables Vibration Isolation Systems Setup Guide Attach Horizontal Lever Arms Step 5 Locate the three height control valves mounted on isolators as typically shown in figure above and referencing figures 3 earlier. Ensure the main air supply is Off. Adjust the ISOLATOR HEIGHT ADJUST screw CW (clockwise as viewed top down) to lower foam pad down to the lowest position close to the horizontal lever arm as referenced in figure below. Retract locking nut as required. Horizontal Lever Arm Screw (red knob) Add mark to silver base Insert lever arm over valve with Lever Arm...

CleanBench Laboratory Tables Vibration Isolation Systems Setup Guide Loosely fasten horizontal lever arm with HORIZONTAL LEVER ARM SCREW (red knob) and adjust to position arm approximately horizontal or the foam pad makes slight contact with the tabletop, whichever occurs first. Repeat above steps for attaching horizontal lever arm onto remaining two valves. Isolator Height Adjustment Step 12 Adjust the ISOLATOR HEIGHT ADJUST screw to raise foam pad until it is in slight contact with the tabletop unless achieved in Step 10 above. TableTop Foam Pad with silver colored base Horizontal Lever...

CleanBench Laboratory Tables Vibration Isolation Systems Setup Guide Repeat above steps for ISOLATOR HEIGHT ADJUST on remaining two isolators with a valve attached. Gimbal Piston Adjustment Step 15 Turn on the main air supply and set to 60-80 psi max. After a short delay, all the load disks should lift away from the clamp rings and the tabletop will then be floating. On systems with Gimbal Pistons, check to see that the top of the piston and the top surface of the clamp ring are parallel as shown in figure below. Sliding or tapping load disk towards the low spot of the piston will correct a...

CleanBench Laboratory Tables Vibration Isolation Systems Setup Guide The table top should be free to move both vertically and horizontally. Any further leveling should only be done with the ISOLATOR HEIGHT ADJUST screw. Tighten locking nut on ISOLATOR HEIGHT ADJUST for all three valves as shown in figure 7 above, Height Control Valve. Note There will be some slight settling and improvement in the valve’s height sensitivity within the first few days of operation. Again adjust ISOLATOR HEIGHT ADJUST if required Adjust Air Pressure Step 18 Adjust the regulated air pressure down to 15–20 psi...

Vibration Isolation Systems Setup Guide CleanBench Laboratory Tables Return to TOC Troubleshooting Tips Table Not Floating Properly If slave piston is too high or too low, adjust HEIGHT ADJUSTMENT screw for master valve controlling it to raise the piston. Also, for piston diagonally opposite, slightly adjust the HEIGHT ADJUSTMENT screw in the opposite direction. Instability If table oscillates uncontrollably, turn off air supply and contact TMC. This problem is due to a combination of high mass and high center of gravity and can be corrected. Poor Isolation To optimize isolation, ensure...

Vibration Isolation Systems Setup Guide CleanBench Laboratory Tables Return to TOC Accessories Faraday Cages Introduction The Faraday Cage is available in two types of configurations. Type II Faraday Cage Cage for mounting to a full perimeter enclosure on 63-500 series tables. Bench Top Faraday Cage Cage with a base plate for use on a bench top. Front panel retractable window shade Faraday Cage Hanging shelf Sliding shelf Arm rests Perimeter Enclosure BenchTop model Figure 1, Type II Faraday Cage and Bench Top model (insert) Technical Manufacturing Corporation, Peabody, Massachusetts