Installation; Vacuum Connection; Electrical Connection - Pfeiffer PPT 100 Operating Instructions Manual

Digital pirani transmitter
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5 Installation

5.1 Vacuum connection

Mounting orientation
Connecting the trans-
mitter

5.2 Electrical connection

Vacuum component!
Dirt and damage impair the function of the vacuum component.
 When handling vacuum components, ensure that they are kept clean and are protect-
ed against damage.
 Ensure that the connection flange is clean, dry and free of grease.
Excess pressure in the vacuum system 1.5 to 4 bar
Damage to health through emission of process media, because elastomer washers
cannot withstand the pressure.
 Use sealing rings with an outer centering ring.
The installation position can be freely selected. The preferred position is a horizontal to
vertical position so that condensate and particles do not penetrate the measurement
chamber.
Excess pressure in the vacuum system > 1 bar
Danger of injuries by inadvertent opening of elements under stress due to parts flying
around.
 Only use stressed elements, which can be opened and closed with appropriate tools
(e.g. strap retainer-tension ring).
 Remove the protective cover, which is required during maintenance work.
 Make the flange connection.
Damage to the transmitter!
Only connect the connection cable when de-energized.
 Never establish a connection to the transmitter using a live cable.
Communication is effected, depending on the position of the address selector switch at
the transmitter, via Serial Interface RS-232 or via the RS-485 (address settable from 1-
15).
CAUTION
CAUTION
CAUTION
NOTE
Installation
7

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