Total Pressure Gauges

Technical Data PR 25 PR 26 PR 27 PR 28
Measurement range
High voltage supply (anode potential)
mbar
(Torr)
kV
1 x 10 -9 to 10 -2 1 x 10 -9 to 10 -2 1 x 10 -9 to 10 -2 1 x 10 -9 to 10 -2
(0.75 x 10 -9 to 10 -2 ) (0.75 x 10 -9 to 10 -2 ) (0.75 x 10 -9 to 10 -2 ) (0.75 x 10 -9 to 10 -2 )
+3.3/+1.6 +3.3/+1.6 +3.3/+1.6 +3.3/+1.6
Storage temperature range °C
Nominal temperature range °C
Degassing temperature (flange) °C
-25 to +80 -25 to +80 -25 to +80 -25 to +80
0 to +80 0 to +80 0 to +80 0 to +200
– – – 350
Permissible overload (abs.)
bar
6 1) 6 1) 6 1) 6 1)
Dead volume cm 3
Materials in contact with the medium
21 21 21 21
stainless steel, stainless steel, stainless steel, stainless steel,
nichrome, nichrome, nichrome, nichrome,
ceramics, titanium ceramics, titanium ceramics, titanium ceramics, titanium
Weight, approx.
Vacuum connection
Operating units
kg (lbs)
DN
0.75 (1.66) 0.75 (1.66) 0.8 (1.66) 0.8 (1.66)
25 KF 40 KF 40 CF 40 CF
COMBIVAC COMBIVAC COMBIVAC COMBIVAC
CM 31, 32, 33 / CM 31, 32, 33 / CM 31, 32, 33 / CM 31, 32, 33 /
PENNINGVAC PM 31 PENNINGVAC PM 31 PENNINGVAC PM 31 PENNINGVAC PM 31
Ordering Information
PENNINGVAC sensors
Replacement cathode plate, titanium
(5 pcs., incl. 5 ceramics discs)
Replacement anode ring
Baffle, with centering ring
PR 25 PR 26 PR 27 PR 28
Part No. 157 52 Part No. 136 46 Part No. 136 47 Part No. 136 48
Part No. 162 91 Part No. 162 91 Part No. 162 91 Part No. 162 91
Part No. 200 28 711 Part No. 200 28 711 Part No. 200 28 711 Part No. 200 28 711
Part No. 230 078 Part No. 230 079 – –
1) When using an ultra sealing gasket at the vacuum connection
Oerlikon Leybold Vacuum Full Line Catalog
65 C16