GE Sensing Aurora 19, Aurora H2O Specifications
GE
Measurement & Control
Aurora 19
Reliable Moisture Measurement
GE’s Aurora 19 analyzer uses tunable diode laser
absorption spectroscopy (TDLAS) to accurately
measure moisture in a variety of background gases.
The Aurora 19 analyzer is suitable for installation
in safe areas and operates over a wide range of
environmental conditions. Aurora 19’s fast response
immediately alerts when moisture concentrations are
out of compliance; once corrected, gas can be quickly
cleared for process normalization.
The Aurora 19 analyzers have an intuitive interface
that makes them easy to learn, congure and
operate. With a local service team to support them,
you have the condence of knowing that Aurora 19
analyzers are always ready for immediate moisture
measurement. With power and gas lines easily
connected, the Aurora 19 moisture analyzer provides
a wide range of reliable measurement with accuracy
and fast response you need for immediate alerts
to process upsets or out-of-compliance moisture
concentrations.
Specications
Range
Calibrated Range 0 to 5000 ppm
Lower Detect Level 5 ppm
For CO2 applications: 50 ppm
Dew/Frost Point
Process Dew/Frost Point
Absolute Humidity 0.24 to 237 (3.8 to 3,803 mg/m
1
-85.9° to 27.3°F (-65.5° to –2.6°C) frost point
@ STP of 25°C, 14.696 psia
1
Process or equivalent dew point/frost point by
calculation with process pressure signal (4-20
mA) or constant
v
v
v
3
) lbs/MMSCF
Accuracy
Parts Per Million by Volume +2% of reading or 4 ppm
For CO2 applications: +3% of reading or 5 ppmv
(Accuracy of other parameters derived from
)
ppm
v.
Repeatability ±2 ppm
Calibration Certication NIST or equivalent NMI traceable certication
Calibration Options Nitrogen, standard natural gas and 3
(parts per billion by volume) below 200
v
ppm. 1% above 200 ppm
customizable calibration curves
v
Response Time
Response Time Optical system <2 seconds
System Response The system response is dependent on the
length of sample tubing, sample system
components, ow rate and pressure, as well as
the change in moisture concentration.
Pressure
Operating Sample Cell
Pressure
Process Pressure 102 psig (0.69MPa)
69 to 172 Kpa (10 to 25 psia)
Higher pressure available with application of
additional sampling system components.
Flowrate
Sample Cell Flowrate 10 to 60 SLH (0.4 to 2 SCFH ); 30 SLH (1 SCFH)
nominal
By-pass Fast Loop 5 to 10X of owrate through sample cell
I/O
Display Backlit LCD. Three programable simultaneous
parameters. Alphanumeric status and
diagnostic display. LEDs for power, laser
temperature stability, keypad lockout
Power Analyzer: 100-240 VAC, 50-60 Hz
Analog Outputs Three 0/4-20 mA DC (source) with 500 ohm
load. User programmable for any parameter
and scalable. Complies with NAMUR protocol
for analog signals.
Analog Input Loop powered 4-20 mA input for remote
pressure transmitter. Aurora supplies 24 VDC.
Digital Interface Two programmable digital communications
ports RS232, RS485 with multidrop capability
and assignable address, MODBUS RTU protocol.
User Interface Programmable “through-the-glass” via
magnetic stylus
Laser Class 1 product. Conforms to IEC 60825-1.
Edition 2.0 Safety of Laser Products
Enclosure
Ingress Protection IP-54
Net Weight 37 kg (100 lb)
Dimensions 6.97 H (177) x 19.92 L (506) x 18.86 W (479)
Temperature
Operating -20 to 65°C (-4 to 149°F)
Storage -20 to 70°C (-4 to 158°F)
www.ge-mcs.com
920-647B
© 2014 General Electric Company. All Rights Reserved. Specications are subject to change without notice. GE is a registered trademark of General Electric Company. Other company or product names
mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not aliated with GE.
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