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Varian portatest ii automatic leak detector 956


Unit powers on and comes with cord but has not been tested.
Following information is from http:// /Equipment/varian/956.asp :
An optional Fast Sniff Tester (FST) unit can be built into the Varian 956 Porta Test II Automatic Leak Detector. This allows testing of helium-pressurized vessels or components while leaving the main test port available for evacuation-type leak detection work. Unique software provides automatic zeroing and calibration while the 956 is being used in the Sniffer mode.
* Fully automatic operation and spectrometer tuning
* Turbo pumped Contra-Flow vacuum system
* Unique alphanumeric display with optional remote display
* Parallel I/O and RS-232 remote interfaces
* One button testing, one button venting
* System will automatically tune from or the built-in calibrated leak
* Fully protected from the possibility of operator errors, air inrushes and power failures
* Operator skill not required for spectrometer tuning, calibration and zeroing
* Can test up to 500 mTorr (to 500 Torr with gross leak option)
* Extra clean and quick starting
* Clear, auto-ranging leak rate indication with selectable units
* Multi-language machine status display
* Supplied with an RS-232 (bi-directional) port capable of operating between 1200 and 9600 baud. Also provided is a parallel port, recorder output, and an audio output jack
* Allows remote machine operation and data logging in a choice of formats
* Totally contamination free testing
* Amplifier drift is less than 2% of the full scale, peak-to-peak in accordance with AVS standard 2.1
* Noise level is less than 2% of full scale peak-to-peak, in accordance with AVS standard 2.1
* Leak indication: 50-segment LED bar graph (user-selectable log or linear format). Numeric value is also given in the alphanumeric display which displays from 10 to 10-10, with user-selectable units
* Audio alarm is controlled via the front panel. Volume and threshold adjustable
* High vacuum pump is a V70 maintenance-free turbo



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