Kurt J. Lesker 100014434, Operation And Maintenance Manual

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Series 902 Piezo 11
902 Piezo
User access is through the 9-pin D-sub connector. The ZERO adjust button
allows the user to manually perform a zero calibration. The user can perform
zero calibration whenever the pressure is below 10 mTorr. See
Calibration
Commands in the RS-485 Command Set section for more information.
The figure below shows the top view of the 902.
Optional Piezo Display Module
The 902 has an optional Piezo Display Module (PDM) to display pressure.
The display reads the analog output voltage from the 902 and translates the
data into pressure. To use the display module, the analog output format must
be set to LINEAR10 (see
Analog Output Format – DAC in the Set Up
Commands section). The display has a resolution of 3½ digits, and shows
three decades of pressure.
The figure below shows the optional PDM.
TORR
Feature and Control Locations
ZERO
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