⭕ Varian 947D Auto-Test Dry Leak Detector Turbo TriScroll,Unit tested in 100% working conditions,Varian Auto-Test Dry Mass Spectrometer Leak Detector
System Model:
947D
Turbo Pump:
V70
Rough Pump:
TriScroll 300
Fore Pump:
TriScroll 300
The Varian 947 mass spectrometer leak detector is a high sensitivity, high speed lead detector which utilizes state-of-the-art technolog & simplicity to provide the user with a relatively easy-to-operate, high technology testing device.
While the 947 and 948 leak detectors provide high sensitivity for detecting small leaks, they can leak test to 10 atm-cc/sec. An atmospheric gross leak option allows searching for helium leaks with test port pressures as high as 760 torr. The Multi-Test option for the 947 includes atmospheric gross leak capability and a volumetric expansion procedure that detects massive leaks even if all of the internal helium has escaped from the part prior to the test. Multi-Test can be used with parts that have net internal volumes greater than 6 cc.
Vacuum System Arrangement:
Contra Flow
V70 Turbo Pump Pumping Speed (N2):
70l/s
TriScroll 300 Free Air Displacement:
250
Sensitivity:
2 x 10-10 atm cc/sec (helium)
Response Time:
Less than two seconds for helium
Leak Indications:
A 50-segment bar graph indicator displays leak rates from
10 to 1 x 10-10 atm cc/sec automatically. The manual mode can be
used for any decade scale. A leak can also trigger an audible alarm
whose frequency varies in proportion to the size of the leak.
Test Port:
11/8 (28mm) ID quick coupling typ