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HALO 3 N2O

Sub-ppm nitrous oxide detection in nitrogen

HALO 3 N<sub>2</sub>O
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Simple trace N2O detection in inert gases

With the HALO 3 N2O, powerful advanced spectroscopy is available for a host of applications, from process control to quality and safety assurance in Air Separation Plants. Other applications include monitoring of cylinder filling, bulk delivery and distribution transfer points, as well as welding, medical, industrial and high-purity gas production, and more. Say goodbye to cumbersome, complex, costly and labor-intensive mid-20th century technology. Gone is the need for calibration, spare parts, limited measurement ranges, and worries about drift and downtime usually associated with NDIRs, FTIRs, or GCs.

Designed for trace level nitrous oxide analysis, the HALO 3 N2O offers:

  • Sub-parts-per-million (ppm) N2O detection capability
  • Absolute measurement (freedom from calibration gases)
  • Wide dynamic range—over four orders of magnitude
  • Low cost of ownership and operational simplicity
  • Clean technology—no external calibration gases required
  • Compact analyzer footprint
  • User-programmable alarms immediately notify on high events

Applications

  • Gas Quality Control
  • Gaseous CRMs & Calibration Gas Mixtures
  • Research & Development
Detection and Matrix Range LDL Sensitivity
N2O in N20 – 1000 ppm250 ppb200 ppb
Performance
Operating range See Detection Capability table
Detection limit (LDL, 24 h peak-to-peak) See Detection Capability table
Sensitivity (3σ) See Detection Capability table
Precision (1σ, greater of) ± 1% or 1/3 of Sensitivity
Accuracy (greater of) ± 4% or 1/2 of LDL
Speed of response < 3 minutes to 95%
Environmental conditions 10°C to 40°C, 30% to 80% RH (non-condensing)
Storage temperature -10°C to 50°C
Gas Handling System and Conditions
Wetted materials 316 stainless steel (optional corrosion-resistant material), 10 Ra surface finish
Gas connections 1/4" male VCR inlet and outlet
Leak tested to 1 x 10-9 mbar l / sec
Inlet pressure 10 – 125 psig (1.7 – 9.6 bara)
Flow rate Up to 1.0 slpm
Sample gases Ammonia, phosphine and inert matrices
Gas temperature Up to 60°C
Dimensions
Standard sensor 8.73" x 8.57" x 23.6" (222 mm x 218 mm x 599 mm)
Sensor rack (fits up to two sensors) 8.73" x 19.0" x 23.6" (222 mm x 483 mm x 599 mm)
Weight
Standard sensor 33 lbs (15.0 kg)
Electrical
Alarm indicators 2 user programmable, 1 system fault, Form-C relay
Power requirements 90 − 240 VAC, 50/60 Hz
Power consumption 40 Watts max.
Signal output Isolated 4–20 mA per sensor
User interfaces 5.7" LCD touchscreen, 10/100 Base-T Ethernet, RS-232
  802.11g Wireless (optional), Modbus TCP (optional)
Patents
U.S. Patent #7,277,177  
Title / Description

HALO 3 N2O Brochure (PDF)

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Moisture Measurement Best Practices Review

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