Leak Detector

Direct/Counter-flow Mode
Sensitivity

4x10^-11 Std cc/sec He

Measurement Range

1x10^-4 to 2x10^-11 Std cc/sec

Maximum Inlet Test Pressure

>7.5 Torr

He Pumping Speed at Inlet Port

Direct - >20 l/s

Counter-flow - >3 l/s

Response Time

To leak at inlet port - <0.5 s

Start up time

<5 min

Dimensions

24" wide x 35" deep x 36" high

General Features

Auto Calibration

Built in calibrated leak

Full Test Cycling

Audible signal

Optional RGA Information

Magnetic Sector Configuration

2" radius, 60° deflection

Resolution

50-75  (with 0.010" slits)

       (m/D m @ 10% peak height)

Source Sensitivity

1x10^-4 amps/Torr (1mA emission)

(1x10^-3 amps/Torr with 3mA emission)

Minimum Detectable Partial Pressure

1x10^-10 Torr for Faraday Cup

5x10^-14 Torr for Electron-multiplier

(with 0.010" slits)

Mass Range

1-150 AMU - Low mass magnet

2-250 AMU - Standard magnet

3-350 AMU - High mass magnet

Dynamic Range

8 decades total

6 decades concurrently

Emission Current

0.1 - 5.0 ma adjustable

Electron Energy

25 - 120 Volts adjustable, standard

Filament Power

20 watts, includes Softstart feature

Materials in Vacuum

Stainless Steel (304), tungsten, nickel, glass (EM), ceramics, ThO2/Ir, copper gasket, W (optional)

Optional Software Information

Operational Modes

Analog display

Histogram Display

Trend Display

Leak Detect

Control Panels

Calculators and Tools

(See Encounter brochure for further details)

Other Options

Bar Code Reader

Calibrated Leaks

Sniffer Probe

High Pressure RGA sampling