Used VARIAN 959 #293685146 for sale

VARIAN 959 is a leak detector designed to locate and accurately measure low level leaks in high vacuum systems. Its extremely sensitive sensor technology can detect spending as low as 0.0001 mbar/second and is capable of both pinpointing and measuring the leak rate of gases to an accuracy of 0.001 mbar/second. 959 is a robust equipment capable of operation within a temperature range of -196 deg C to +125 deg C, and is suitable for use under either static or dynamic conditions. It is also capable of sustained operation within an air-free environment. The system comprises a pump, a vacuum controller and an inlet tube, plus a power supply, a series of valves, a signal meter and the detector. The pump maintains a high vacuum (typically 10-3 mbar) which is monitored using the vacuum controller. The pressure inside the chamber is held at a constant rate as long as the leak exists. The inlet tube is the point of entry into the chamber. It is designed to let in either a known leaking background or an unknown one and measure them both. This is done using selectable adjusting valves located upstream of the detector. The signal meter division of the unit provides a means of viewing the strength of the leak. The detector can measure up to visual light intensity signals from the leakage. Singlefrequency waves enable frequency selection of the leak rate, which can be done manually or automatically. In addition, VARIAN 959 provides an excellent optical resolution for comparison and quantitative analysis of the leak. In conclusion, 959 is an extremely advanced leak detector which offers high level performance in detection and measurement of low level leaks. Its advanced electronics and sophisticated design make it the ideal machine for use in high vacuum systems. VARIAN 959 is well-suited for use in all areas of industrial research, development, and production.