Panametrics Aurora Moisture Analyser

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Overview

Panametrics Aurora analyzer uses tunable diode laser absorption spectroscopy (TDLAS) to rapidly and accurately measure moisture in a variety of background gases. The analyzer is suitable for installation in hazardous areas and operates over a wide range of environmental conditions. Aurora’s fast response immediately alerts when moisture concentrations are out of compliance or natural gas dehydration process is upset; once corrected, gas can be quickly cleared for re-entry to pipeline or process.

The Aurora analyzers have an intuitive interface that makes them easy to learn, configure and operate. With a local service team to support them, you have the confidence of knowing that Aurora analyzers are always ready for immediate moisture measurements. With power and gas lines easily connected, the Aurora 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.

Manufactured by: Panametrics
Model: Panametrics Aurora Moisture Analyser

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance
  • IoT Cloud Compatible

Specification

Range
Range 0 to 5000 ppm
For CO2 applications: 0 to 1000 ppm
Lower Detection Point 2 ppm For CO2 applications: 20 ppm (-55.3°C)
Dew/Frost Point -97° to 27.3°F (-71° to -2.6°C) frost point @ STP of 25°C, 14.696 psia
Process Dew/Frost Point Process or equivalent dew point/ frost point by calculation with process pressure signal (4-20 mA) or constant
Absolute Humidity 0.095 to 237 lbs/MMSFC (1.52 to 3,803 mg/m3)
Moisture reading (parts per million by volume)

±1% of reading or ±2 ppm, whichever is greater; for > 1000 ppm, ±5% of reading

For CO2 applications: ±3% of reading or ±5 ppmv For H2 recycle applications: ±1% of reading or ±2 ppmv (for up to ±5% H2 and ±1% C2H6 variation from nominal calibration composition)

(Background conditions for individual instrument calibrated accuracy provided in Certificate of Conformance. Accuracy of other parameters derived from ppmv.)

Repeatability ±0.2 ppmv or ±0.1%, whichever is greater For CO2 applications: ±1.0 ppmv or ±0.5%, whichever is greater
Calibration Certification NIST or equivalent NMI traceable certification
Calibration Options Nitrogen, standard natural gas and 3 customizable calibration curves
Response Time
Response Time Optical system <2 seconds
System Response The system response is dependent on the length of sample tubing, sample system components, fl ow rate and pressure, as well as the change in moisture concentration.
Pressure
Operating Sample Cell Pressure 10 to 25 psia (69 to 172 kPa)
Maximum Pressure 200 psi (1380 kPa)
Process Pressure

400 psig (2.76 MPa) [2500 psig (17.23 MPa) with heated pressure regulator option]

Higher pressure available with application of additional sampling system components.

Flow Rate
Sample Cell Flow Rate 10 to 60 SLH (0.4 to 2 SCFH );
30 SLH (1 SCFH) nominal
By-pass Fast Loop 5 to 10X of flow rate 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, 24VDC
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 Interfaces Two programmable digital communications ports: RS232, RS485 with multidrop capability and assignable address, MODBUS RTU protocol. One Ethernet port: Modbus TCP/IP 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-66
Net Weight 45 kg (100 lb)
Dimensions (H x L x W) 841.2 mm x 461 mm x 332.3 mm (33.12 in. x 18.31 in. x 13.08 in.)
Temperature
Operating -20 to 65°C (-4 to 149°F)
Storage -20 to 70°C (-4 to 158°F)
Optional Heater/ Thermostat Set Point 20°C/68°F ±5°C/9°F for US/Canada,
10°C/50°F ±5°C/9°F EU and elsewhere
Hazardous Area Certification
USA/Canada Explosion-proof for Class I, Division 1, Groups B, C, D
EU and Elsewhere ATEX and IECEx: Ex de IIB+H2 T6 -20°C to +65°C Flameproof with increased safety compartment