Analytical Industries Oxygen Analyzers for Ultra-High Purity Gases

Based on the stable and long-life Pico-Ion oxygen sensors, the PI2 range of trace oxygen analyzers provides accurate and stable measurements of oxygen down to low parts per trillion. Low cost of ownership through minimal maintenance of this high-performance oxygen analyzer make measurement of oxygen down to ppt level easy and affordable for customers with limited budgets.

Highlights

• Measuring trace O2 in ultra-pure Ar, H2 , He and N2
• LDL to less than 100 ppt
• Low cost of ownership
• User friendly and easy to operate and maintain
• Fast recovery from process upsets
• Integrated bypass sample system as standard
• Optional auto calibration system with true zero feature via O2 scrubber

Second generation, nomaintenance Pico-Ion sensor technology

A high-performance, low ppb oxygen sensor with stable output requiring no maintenance or frequent electrolyte additions. The innovative design of the gas chamber maximizes the rate of oxygen reaction while the refined proprietary sensor design provides a high signal output per unit area to enhance sensitivity as well as a significantly higher output. Further advantages are:

• Lower detectable limit (LDL) of less than 100ppt
• High signal to noise ratio
• Excellent stability
• Response time of less than 15 seconds
• Minimizes the temperature dependence
• Fast recovery from higher oxygen levels during process upset conditions
• Approximately 12 months of continuous use
  

Standard Full Featured Automated Sample System

The PI2-UHP analyzers have a full featured ultra-clean sampling system designed for the measuring < 100 PPT oxygen :

• 316 stainless wetted parts including electro-polished tubing, Face Seal fittings or orbital welded connections
• Integral pressure regulator and flow control
• Pneumatic diaphragm valves that operate :
  - Sample and span gas inlets
  - Integral bypass system that isolates the sensor from high oxygen levels and
  - An oxygen scrubber system for generating consistent zero gas
• Temperature control of the sample system limits drift during day-and-night cycles where ambient temperatures fluctuations were typically ±10F°.

Features

Features

• Measuring trace O₂ in ultra-pure Ar, H2, He and N2
• LDL to less than 100 ppt
• Low cost of ownership
• User friendly and easy to operate and maintain
• Fast recovery from process upsets
• Integrated bypass sample system as standard
• Optional auto calibration system with true zero feature via O₂ scrubber

Applications

• Quality checking of ultra-high purity gases produced by cryogenic air separation
• Validating high purity gases used in electronics and semi-conductor manufacture
• Commissioning UHP gas lines and processes

Specifications

PI2-MS 1000	PI2-MS 500	PI2-UHP 100	PI2-UHP 50
Measurement range	0-1, 0-10, 0-100, 0-1000 ppm	0-0.5, 0-1, 0-10, 0-100, 0-1000 ppm	0-100 ppb, 0-1, 0-10, 0-100 ppm	0-50, 0-100 ppb, 0-1, 0-10 ppm
Accuracy at constant conditions	< 3% of reading or ±5 ppb (whichever is greater)		±3% of reading or ±0.5 ppb (whichever is greater)
Response time	T90 <15 seconds
Sensitivity (LDL)	< 5 ppb	< 2.5 ppb	< 250 ppt	< 100 ppt
Linearity	< 1% of scale
Sensor	GPR-12-2000 MS-2	GPR-12-2000 MS-2E	GPR-13-2000 UHP-2	GPR-13-2000 UHP-2E
Sensor life at 25ºC (77°F) and 1 atm	12 months (Up to 24 months for the MS versions)
Calibration interval	30 days
Inlet pressure	1.4-3.4 barg (20-50 psig) with atmospheric vent, max 10.3 barg (150 psig)
Flow rate	0.5 - 1.0 l/m (1-2 SCFH)
Gas connections	1/4" compression tube fittings Option: 1/8" or NPT fittings		Inlets: 1/4" face seal fittings; Vent and pneumatic valves: 1/4" compression tube fittings
Wetted parts	Stainless Steel
Display	Graphical LCD 12 x 7cm (5 x 2.75”); resolution 0.1
Enclosure	Bench top, painted sheet metal (35 x 25 x 34cm (13.9” x 9.9” x 13.4”))
	Options: panel or 19” rack mount, wall mount (30.5 x 30.5 x 20.3cm (12” x 12” x 8”))		Bench top Options: panel or 19” rack mounting
Compensation	Barometric pressure and temperature; heated sample system and sensor housing
Signal output	4-20 mA isolated, 0-1V and 0-5V
Range ID	1-5V DC or 4-20mA, optional relay contacts
Communications	Choice of USB, RS232
Alarms	2-off user-adjustable alarms form C relay contacts non-latching
Operating temperature	0° to 45°C (32°F to 113°F)
Power	100-240 V AC

Download Dataseheet : Analytical Industries Oxygen Analyzers for Ultra-High Purity Gases

Reference : aii1.com