Ametek 3050-DO

PN 305725901, Rev YF
Controller Communication
All analyzer functions are controlled by a microprocessor housed within the
smart Sensor. Communication with the smart Sensor is achieved through the
following connections:
• One analog input, 4–20 mA.
• One analog output, 4–20 mA, isolated. Can be either loop powered or
powered by the analyzer.
• Three alarm contacts (dry relay contacts).
• One RS-232 serial port.
• One RS-485 serial port.
The 3050-DO Analyzer has no local user programming functions. It requires se-
rial communication with an external PC for conguration. Once congured, the
analyzer is capable of standalone operation. The analyzer is factory congured
and packaged with Congurator Software for initial setup of operating param-
eters. For enhanced interface and process monitoring, AMETEK oers optional
System 2000 Software with graphical user interface to record and process your
data in a Windows 95/NT format. User provided software may also be used
with the 3050 serial ports.
Verication
The 3050-DO Analyzer has a built-in Moisture Generator for onboard Verica-
tion. A portion of the dry Reference gas ows through the Moisture Generator
where a known amount of moisture is added. When Cell Verication is initiat-
ed, the QCM Sensor is alternately exposed to gas from the Moisture Generator
and dry Reference gas. The moisture value is compared to a stored value. The
Sensor can make an adjustment if the value is within a tolerance band. If the
value is outside the tolerance band, an alarm will activate.
Since the Moisture Generator uses a dried portion of Sample gas, Sensor
Verication is performed on a sample of the process gas. This yields the most
realistic test of the sensors performance under process conditions.
Overview | 1-3