Photoionization Detector (PID)
The Model 4430 Photoionization Detector (PID) is a GC detector that selectively responds to aromatic and olefinic hydrocarbons in the presence of alkanes and other saturated hydrocarbons. The detector assembly contains an ionizing chamber, UV lamp, and column makeup adapter and uses a standalone, high-voltage power supply for the UV lamp.
The 4430 PID features a unique patented Window Sweep™ design that prevents the sample stream from contacting and contaminating the lamp window. It also allows analysis of photosensitive compounds, which would otherwise polymerize on the window surface. The PID is available for installation on most GC manufacturer’s instruments.
- Unique UV-lamp Window Sweep design minimizes fouling from window surface contamination
- Lampsaver™ circuit extends lamp lifetime by turning off lamp when not in use.
- Direct interface to ELCD, XSD, or FID to form tandem detector systems, which require only one detector port
- Detector vent for venting undesirable sample solvents
- Compatible with packed and capillary columns
- Custom engineered to fit specific gas chromatograph models
- Easy operation and maintenance
Parameter
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Recommendation
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CPU speed
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3 GHz
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Memory (RAM)
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1.0 GB or better
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Free disk space
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1.0 GB or better
2.0 GB for the data service
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Operating System
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Windows XP Pro, Windows 7 (32 or 64 bit)
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Hard disk
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CD-ROM
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Comm Ports
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One serial (RS-232) or USB to Serial Adaptor
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Performance specifications
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Dynamic Range
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>106
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Linear Range
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>106
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Sensitivity
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<40 pg. Benzene
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Lamp Current
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0–1.60 mA (in 9 steps)
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Lampsaver Time
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0.5–2 hr, reset by external contact
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Requirements
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|
Gas
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He (99.999( purity)
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Power
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105-125 (+/- 10%) V AC/25 VA
210-240 (+/- 10%) V AC/25 VA
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General specifications
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Weight
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3 kg (5.5 lb)
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Controller Dimensions
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14.5 cm H x 6.9 cm W x 23 cm D
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Maximum Operating Temperature
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250 ºC
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Materials of Construction
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Inlet
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Glass-lined stainless steel
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Ion Chamber
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Gold-plated stainless steel
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Solvent Vent Valve
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Remotely controlled through GC external event
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