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
 Recommendation
 CPU speed 
 3 GHz
 Memory (RAM)
 1.0 GB or better
 
 Free disk space
 1.0   GB or better
 2.0   GB for the data service
 
 Operating System
 
 Windows XP Pro, Windows 7 (32 or 64 bit)
 Hard disk
 CD-ROM
 Comm Ports
 One serial (RS-232) or USB to Serial Adaptor

 

 Performance specifications
 Dynamic Range
 >106
 Linear Range
 >106
 Sensitivity
 <40 pg. Benzene
 Lamp Current
 0–1.60 mA (in 9 steps)
 Lampsaver Time
 0.5–2 hr, reset by external contact

 

 Requirements
 Gas
 He (99.999( purity)
 Power
 105-125 (+/- 10%) V AC/25 VA
 210-240 (+/- 10%) V AC/25 VA

 

 General specifications
 Weight
 3 kg (5.5 lb)
 Controller Dimensions
 14.5 cm H x 6.9 cm W x 23 cm D 
(5.75” H x 2.75” W x 9” D)
 Maximum Operating Temperature 
 250 ºC
 Materials of Construction
 Inlet
 Glass-lined stainless steel 
 Ion Chamber
 Gold-plated stainless steel 
 Solvent Vent Valve
 Remotely controlled through GC external event