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Unique Vacuum Systems, Bangalore India, Supplier of Vacuum Pumps, Measuring instruments, Helium leak testing services
 
 

Digital penning vacuum gauge. Model DPNG 003
Unique Vacuum

Thisis a cold cathode Ionisation gauge consisting of two electrodes anode and cathode. A potential difference of about 2.2 KV is applied between anode and cathode through current limiting resistors. A magnetic field is introduced at right angles to the plane of the electrodes by a permanent magnet having nearly 800 gauss magnetic field which will increase the ionisation current. The electrons emitted from the cathode (gauge head body) of the gauge head are deflected by means of magnetic field applied at right angles to the plane of the electrodes and are made to take helical path before reaching the anode loop. Thus following very long path, the chance of collision with gas molecule is high even at low pressures.

The secondary electrons produced by ionisation themselves perform similar oscillations and the rate of ionisation increases rapidly. Eventually, the electrons are captured by the anode and equilibrium is reached when the number of electrons produced per second by ionisation is the sum of positive ion current to the cathode and the electron current to the anode and is used to measure the pressure of the gas. This instrument with the sensor having wider range of applications, in high vacuum systems where the final Vacuum to be measured in process chamber.

These instruments can be used in high vacuum systems, coating units, sputtering units, vacuum furnaces and many other applications where high vacuum to be measured in the range of 10-2 to 10-6 m.bar.

Technical specifications:

Particulars

Details

Unit of measurement

Mbar

Gauge head model number

PNH - 022

Pressure range

9.9 X10-3 to 10-6 mbar

Display

3 digit seven segment LED

Number of GHs

One

Input power

220v AC , 50 Hz

Operating temp.

15 to 45 deg C

Analog output

0 to 3.5V DC

Calibration

Factory set

Gauge head mounting

Any position

Gauge head cable

Standard 2 mtrs, extra length on request

Dimentions

98 X98X 250mm

Cutout size

92X92 mm

End connection of GH

KF-25

GAUGE HEAD SPEC
Type

PNH 022

Useful Range

10-2 mbar to 10-6mbar

End flange connection

Standard KF-25

Gauge Head Cable

2 Mtr. long Amphenol sockets suitably
connected on both sides as standard
extra length cable on request

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