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Pfeiffer <strong>Vacuum</strong><br />
Page 84<br />
<strong>Vacuum</strong> <strong>Technology</strong><br />
APR TPR PCR IKR<br />
Transmitters<br />
Control units<br />
TPG 261 TPG 262<br />
TPG 256 A<br />
PKR CMR IMR PBR<br />
Transmitters<br />
Figure 3.10: ActiveLine application concepts<br />
Molecular flow therefore prevails, even at pressures p of less than 10 - 2 mbar, enabling ion<br />
currents there to be measured. An additional advantage is its lower sensitivity to contamination<br />
than the Bayard-Alpert design. Moreover, there are two TPR Pirani transmitters and<br />
three IKR cold cathode transmitters with measuring ranges from 0.01 bis 5 . 10 -11 mbar.<br />
The TPR 280 Pirani vacuum gauges can also be connected to DCU pumping station display<br />
control units, thus providing a pressure reading at no additional expense.<br />
www.pfeiffer-vacuum.net
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