| Range |
| Range |
0 to 5000 ppmv
For CO2 applications: 0 to 1000 ppmv |
| Lower Detection Point |
2 ppm
For CO2 applications: 20 ppm (-55.3°C) |
| Dew/Frost Point |
-97°F to 27.3°F (-71°C 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) |
| Accuracy |
| Moisture reading (parts per million by volume) |
±1% of reading or ±2 ppmv, whichever is greater; for > 1000 ppmv, ±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, flow rate and pressure, as well as the change in moisture concentration. |
| Pressure |
| Operating Sample Cell Pressure |
69 to 172 Kpa (10 to 25 psia) |
| Process Pressure |
102 psig (0.69MPa)
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 flowrate through sample cell, available upon request |
| I/O |
| Display |
Backlit transflective LC display. Three programable simultaneous parameters. Alphanumeric status and diagnostic display. LEDs for power, laser temperature stability, keypad lockout |
| Power |
analyser: 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 Interfaces |
Two programmable digital communications ports RS232, RS485 with multidrop capability and assignable address, MODBUS RTU protocol. One Ethernet (RJ-45) port: Modbus TCP/IP protocol |
| User Interface |
Tactile keypad with status/fault indicator LEDs |
| Laser |
Class 1 product. Conforms to IEC 60825-1. Edition 2.0 Safety of Laser Products |
| Enclosure |
| Ingress Protection |
IP 20 |
| Net Weight |
19 kg (41 lbs) |
| Dimensions (H x L x W) |
7” H (177 mm) X 19” W (483 mm) X 22” D (559 mm) |
| Temperature |
| Operating |
-20 to 50°C (-4 to 122°F) |
| Storage |
-20 to 70°C (-4 to 158°F) |
| Certification |
| USA/Canada |
General Purpose
(No hazardous area certification) |
| EU and Elsewhere |
General Purpose; Complies with 2014/30/EU EMC and 2014/35/EU LVD harmonizing directives |
