Name: Agilent Varian 979 - REBUILT
Brand: Agilent Varian
SKU: REBUILT_VS979

Agilent Varian 979 Mass Spectrometer Helium Leak Detector - REBUILT

The Model 979 is a wide-range helium mass spectrometer leak detector. It is comprised of a turbomolecular high vacuum pump, spectrometer tube, valve block, Vacuum Technologies’ Platform leak detector electronics, and an operator interface in a stylish, yet rugged housing. The 979 is available as a stand-alone, bench-mount unit or as a single or dual, dry or oil sealed mechanically pumped leak testing station on a cart. Featuring a multi-flow mode vacuum system, high sensitivity is combined with the ability to start leak testing at quickly achieved pumpdown pressures. The Agilent Varian MacroTorr turbo pump allows the 979 to perform quantitative, high sensitivity testing at high test pressures.

Helium sensitivity range 10^-5 to 10^-10 atm-cc/sec range
Automatic with touch screen interface
Operable in evacuation and sniffing modes

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Specification

System sensitivity	Standard sensitivity				High sensitivity
High vacuum pump type, Air-cooled, maintenance-free	Vacuum Technologies turbomolecular pump
Rough / fore pump	Wet (Oil-sealed)		Dry (TriScroll)		Wet (Oil-sealed)		Dry (TriScroll)
Rough pump type	-	SD-451	-	TS-620	-	SD-451	-	TS-620
Free air displacement l/min, 60/50 Hz	-	410/342	-	500/420	-	410/342	-	500/420
Fore pump type	DS-302		TS-620	TS-320	DS-302		TS-620	TS-320
Free air displacement, l/min, 50/60 Hz	285/237	285/237	500/420	250/210	285/237	285/237	520/420	250/210
Minimum detectable leak, atm-cc/sec	5 x 10^-10				5 x 10^-11
Leak units	atm-cc/sec, mbar-l/sec, Torr-l/sec, Pa-m³/sec
Response time	Less than 0.5 second, in accordance with AVS Standard 2.1.
Amplifier drift	Less than 5% of full scale of the most sensitive range, in accordance with AVS Standard 2.1.
Noise level	Less than 5% of full scale, peak-to-peak, in accordance with AVS Standard 2.1.
Calibration	Fully automated tuning and calibration using the internal or external calibrated leak. The fast calibrate feature allows the standard version to calibrate in less than 20 seconds and the high sensitivity version to calibrate in less than 1 minute.
Zero control	Selectable mode background elimination with unique AUTOZERO < 0 feature.
Leak indication	A 50-segment bar graph (linear or log) indicator displays leak rates automatically; alphanumeric indication on LCD display. A leak can also trigger an audible alarm frequency that varies in proportion to the size of the leak, dedicated volume control and programmable audio threshold. Analog voltage is proportional to the leak rate.
Pressure indication	Test port and spectrometer pressure bar graph displays and test port pressure alphanumeric indication on LCD display.
Spectrometer tube	Sensitivity optimized design, header mounted ion source with dual thoria-coated iridium filament, preamplifier, ConvecTorr® and vacuum gauge.
Automatic valve sequencing	Microprocessor-controlled valve operation provides automatic system cycling.
Safety interlocks	A valve system design that completely protects the high-vacuum system under test against pressure surge and power interruption.
Cycle time	Blanked port can be cycled to the fine leak test in 4 seconds. An auto sequencer feature provides clear accept/reject signals and allows programming of a complete test cycle (START/ROUGH/TEST/VENT).
Test port	NW25; A 118" (28 mm) ID Compression Port is available as an accessory.
Remote I/O capabilities	Interface (DB-37S) with optically isolated (5-24 VDC) outputs and inputs, Non-isolated Serial RS-232 interface, and Non-isolated Analog output (0-10 V). Non-isolated Remote Control (DB-9S) interface.
Accessories (optional)	Universal Remote (part # L9558301) with 25 foot cord, External Calibrated Leak, and Power Probe.
Recommended operating ambient conditions
Installation	Indoor use only. Altitude up to 2,000 m (6,400 feet). Installation (Overvoltage) Category II, Pollution Degree II according to UL3101-1 Standard
Temperature	+12°C (54°F) to +40°C (104°F) for Wet Version (w/ oil-sealed mechanical pumps) +5°C (41°F) to +40°C (104°F) for Dry Version (w/ TriScroll mechanical pumps)
Humidity	Maximum relative humidity (HR) 80% for temperatures up to +31°C (88°F) decreasing linearly to 50% HR at +40°C (104°F). No hoarfrost, dew, percolating water, rain, solar irradiation, etc.
Air pressure	75 kPa (563 Torr) to 106 kPa (795 Torr)
Storage ambient conditions	Relative humidity: 0% to 95%, non-condensing. Temperature: -20°C (-4°F) to +60°C (140°F)
Power requirements	100 VAC, 20 A, 50 Hz / 115 VAC, 20 A, 60Hz or 230 VAC, 20 A, 50/60 Hz. Start-Up current for “Wet” version up to 85 A peak for up to 10 seconds at temperature less then 20°C (68°F). Note: 1. Input voltage cannot be modified by customer Note: 2. No extension cord can be used.
Specifications	979 Helium Mass Spectrometer Versions
EMC	89/392/EEC Directive; EN61326:1997.
Weight	50 lb. (23 kg) net - stand-alone, bench-mount unit. / 180 lb. (82 kg.) net - wet 1-pump 979 version with DS-302 oil-sealed pump on a two wheel cart. / 243 lb. (111 kg) net - wet 2-pump 979 version with DS-302 and SD-451 oil-sealed pumps on a four-wheel cart.

Digital Manuals

Type	Label	Description	Download
	Varian 979 Series - REBUILT	Operations Manual	Download

RFQ/Configuration

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Agilent Varian 979 Mass Spectrometer Helium Leak Detector - REBUILT