PENTAX leakage test...펌

 

Leakage Test

The PENTAX Leakage Tester allows for simple two (2) stages testing of the watertight integrity of the PENTAX Endoscopes Air pressure is delivered by means of a hand operated bulb, eliminating the need for any electro-mechanical devices.
DRY TEST, STAGE I BEFORE IMMERSION, PENTAX Endoscopes should be tested for any major loss of integrity in their watertight construction (example: major tear in the instrument channel). All valves, inlet seal and other removable components should be detached from the scope prior to leak testing.
(1) Secure the Leakage Tester connector to the air vent on the PVE connector. The PVE soaking cap should be securely attached to/over the electrical contacts. The Leakage Tester connector and the air vent on the PVE connector MUST be dry before connecting. Proper connection will require alignment of the air vent pin and clockwise rotation of the Leakage
(2) Turn the gauge faceplate to ‘zero’ the pressure indicator. (3) Pressurize the scope by pumping the hand bulb until the indicator on the gauge is in the GREEN zone. DO NOTpressurize into the RED zone, as it may cause serious damage to the scope.
NOTE: Be certain that the pressure release valve on the handle of the Leakage Tester has been tightened. DO NOT IMMERSE the entire instrument if the gauge indicator does not remain in the GREEN zone. Instead, contact your PENTAX Service Center.
(4) Observe the gauge pressure to determine if the indicator remains in the GREEN zone. If the indicator drops from the GREEN zone rapidly, a major leak may be indicated
NOTE: During the leak test procedure, the insertion tube of the scope should be flexed in various positions and the distal bending section should be fully angulated in all directions to confirm the absence of a leak.
WET TEST, STAGE II After determining the absence of any major leak in Stage I testing, PENTAX Endoscopes may be immersed to test for loss of integrity in their watertight construction.
CAUTION: BEFORE IMMERSING: a.The ‘Red’ ETO gas sterilization venting cap must be taken OFF. b. The PVE Soaking cap should be securely on the electrical contacts.
(1) With the Leakage Tester securely attached to the scope and the scope pressurized with the gauge indicator in the GREEN zone, and the PVE Soaking Cap securely attached over the electrical contacts plug on the umbilical cable of the scope, the entire scope with ALL valves and inlet seals removed may be immersed in clean water.
NOTE: Only the Leakage Tester connector and a small portion of its tubing should be immersed. NEVER immerse the entire Leakage Tester.
(2) Observe the instrument carefully while fully angulating the distal tip of the scope. A few bubbles may occur initially from recessed areas of the scope. This is normal. You may proceed with cleaning and either disinfection or sterilization of the scope as described in the companion Reprocessing/ Maintenance Manual. If a continuous stream of bubbles is observed from the same spot, a leak is indicated. Immediately remove the scope from the water.
DO NOT use the scope.
(3) After removing the scope from water, release the air pressure within the scope by opening the pressure release valve on the handle of the Leakage Tester. After the gauge indicates ‘zero’, disconnect the Leakage Tester from the scope. If leakage was discovered in step (2), thoroughly dry the instrument and contact your PENTAX Service Center.
NOTE: NEVER connect or disconnect the Leakage Tester under water. This will cause leakage of water into the scope and Leakage Tester.