Baker Hughes Panametrics Aurora RM, Manual Addendum

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Aurora Rack Mount Manual Adendum 1
1. Aurora RM Features and Capabilities
1.1. Overview
Panametrics’ Aurora RM moisture analyzer makes it possible for a variety of industrial and laboratory gas processing
facilities to check moisture content in real-time with high precision and reliability. The analyzer system is designed to
continuously monitor moisture content in an extracted sample of process gas using tunable diode laser absorption
spectroscopy (TDLAS).
Similar to the Aurora H2O and Aurora Transport, it measures the partial pressure of water vapor (water in the gas
state) in a gas sample introduced into its absorption cell. Combined with simultaneous measurement of the sample
pressure and temperature, it provides readings of user-selectable moisture parameters including dew point
temperature, volume ratio and absolute humidity (lbs/MMSCF or mg/m
3
) and both analog and digital signal
transmission in addition to temperature and pressure.
Figure 1: Aurora RM outside view showing rack-mounting rails and front panel.
It’s lightweight (<45 lbs) and rugged design with handles in the front and rack-mounting brackets pre-installed on
the sides and the rear make it ideal for easy mounting in a standard 19” rack for quick deployment and use. The basic
sample conditioning system allows for quick and easy gas connections on the rear panel, flow metering and
adjustment on the front panel (see Figure 1), achieving stable readings within a few minutes of starting gas flow.
Since the laser head is isolated from the sample gas, it provides non-contact drift-free moisture measurement
tolerant to any contaminants such as particulates and liquid carryover in the sample .
Analysis of the extracted sample uses TDLAS to determine moisture content in the gas with high accuracy and
repeatability down to PPMv levels. The fast response of the Aurora RM quickly alerts the user when moisture
concentrations are out of compliance. Once upsets are corrected and the process recovers, the fast response
enables gas flow to be quickly cleared for entry into the process.
1.2. Important Use Limitations
Environmental Conditions
The Aurora RM enclosure has an IP rating of 20, which implies the analyzer is designed to be used indoors and not
designed to prevent dust or water ingress. The operator must be aware of weather conditions and coffee cup
placement to prevent instrument damage or possible injury.
WARNING!
Liquids spilled onto the analyzer may leak into the electronics enclosure causing
severe damage to laser control and measurement circuity, or possible user injury.