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O2 Analyzers for UHP Gases - AII PI2-UHP 50/100 & MS 500/1000

Updated:2025-03-13

Brand: PST/AII
Model: PI2-UHP
Description: 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 owner
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Product Details

O2 Analyzers for UHP Gases - AII PI2-UHP 50/100 & MS 500/1000 Description：

Datasheet

Oxygen Measurement Down to Parts Per Trillion

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

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.

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