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

Analog penning gauge
Unique Vacuum   
This is 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.

This cold cathode ionisation gauge works on the principle of cold cathode discharge and ionisation.
It is has an anode and a cathode electrode. An electrical potential of approx. 2.2kV is applied between anode and cathode. The electron emission will happen from the cathode (gauge head boby). Here a magnetic is assembled and the magnetic field is introduced. Due to which the ionization current is increased.
Since the magnetic field is applied at right angle with the electrodes, the emitted electrons  will take a helical path before reaching the anode. 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 ionization increases rapidly.
This cold cathode penning gauge, with this principle of measurement of vacuum, it is designed to read from 10-2 to 10-6 m.bar.
The high efficiency high voltage DC power supply, rugged electronics design high quality permanent magnets are part of the penning gauge. The ionization current is read from the front panel micro ammeter.

Salient Features:
• rugged and stabilised DC power supply for accurate reading
• Easy maintenance of  the sensor
• Rugged design for no filament burnout
• Instant start up
• Standardised to heat and voltage fluctuations
• Compatible out put for process set point controller

Technical specifications:
Model No. C-80
Pressure Range 10-2 to 10-6mbar in two ranges of 1x10-2 to
1x10-5 mbar and 3x10-5 mbar to 1x10-6 mbar
Display Wide view analog panel meter calibrated
directly in mbar in the ranges
Capacity One Gauge head
Power Input 220V AC ±10%, 50 Hz
Power cord 2 Mtr. long cable with 3 pin, 5 amp plug as
standard. Extra long cable on request.
GAUGE HEAD SPEC
Type

PNG 22

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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