Leybold PENNINGVAC PR25/PR26/PR27/PR28 series passive cold cathode Penning vacuum gauge tube

Product type and principle

Product series: Leybold PENNINGVAC PR25, PR26, PR27, PR28

Technology type: Passive cold cathode ionization vacuum sensor, based on the working principle of Penning

Core advantages

Durable and sturdy structure

Strong resistance to impact, atmospheric shock, and vibration.

Convenient maintenance

The measurement system is easy to disassemble and clean; The cathode plate can be replaced.

performance optimization

Using titanium cathode significantly improves ignition characteristics.

Protection optional

Suggest installing a baffle to prevent pollution, radiation, and interference.

Key technical parameters

Measurement range 5 × 10 ⁻⁹~1 × 10 ⁻² mbar

Anode high voltage 3.3 kV

Working temperature -25 ℃~+80 ℃

Maximum baking temperature+200 ℃

Vacuum interface DN25 KF, DN40 KF, DN40 CF

Material: Stainless steel, ceramic, titanium

Applicable controllers PM31, CM31/32/33/51, PENNINGVAC PM31

Model replacement relationship

PR26 replaces old models: PR31, PR32, PR35

PR27 replaces old model: PR36

Accessories and ordering information

Cathode accessories (including ceramic plates): EK 162 91

Baffle (with centering ring FPM): DN40 specification 230078/230079

Key issue

What measurement principle does PR25-PR28 use and are they active or passive sensors? Answer: It adopts the Panning cold cathode ionization principle and belongs to passive vacuum sensors.

What are the measurement range, operating voltage, and maximum baking temperature regulated by this series? Answer: The measurement range is 5 × 10 ⁻⁹~1 × 10 ⁻² mbar; Anode power supply 3.3 kV; maximum baking temperature * *+200 ℃ * *.

What accessories are recommended for installation in the document? What is the purpose, and who will replace the old model? Answer: It is recommended to install a Baffle to prevent pollution, radiation, and reduce interference; The old regulations PR31/32/35 have been replaced by PR26, and PR36 has been replaced by PR27.