4551A Liquid Injections
The Model 4551A Purge-and-Trap Water Autosampler achieves results by automating VOC analysis of up to 51 samples. Vertical docking of the autosampler to the Eclipse Sample Concentrator means no extra benchspace is used. The removable, lightweight sample carousel makes sample loading and unloading easy, while its spiral design optimizes septum-piercing accuracy. With its proven, reliable sample handling system, the Model 4551A gets the job done, sample after sample.
- Holds up to 51 samples
- Docks directly onto the Eclipse Sample Concentrator, minimizing benchspace requirements
- Program multiple rinses and blanks
- No system clogging even with lightly particulated water
- Optional SAM is available for automated standard/surrogate addition
- Spiral-design carrousel optimizes septum-piercing accuracy
- Removable, lightweight sample carousel makes sample loading/unloading easy
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PERFORMANCE SPECIFICATIONS |
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Trap |
3.175-mm O.D. x 2.667-mm I.D. (0.125” O.D. x 0.105” I.D .) Direct resistance heating Cooldown temperature: ambient +1ºC Heating rate: >1.000 ºC/min to 300ºC Maximum setpoint: 450ºC Cooling rate: >240 ºC/min (200ºC to 30ºC in <50 sec) |
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Water Management |
Eliminates all but approximately 0.25 µL (0.063 µL/min) of trapped water (>96% water removed) Maximum temperature: 240 ºC Cooldown temperature: ambient +1ºC Water removal at level equivalent to condensation at 4.8ºC |
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Optional Sample Heater |
Infrared lamp heating method In situ temperature measurement and feedback control Maximum sample heating rate: >35ºC/min (5 mL); >17ºC/min (25 mL) Temperature range: ambient to 200ºC (up to 350 ºC with the Aire Tube Desorber) Inlet temperature: ambient to 200ºC |
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Sample Pathway |
Hydroguard 1/16” tubing Hydroguard transfer line: 48” standard; 60” optional |
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Programmable Temperature ranges |
Trap: ambient to 450ºC in Purge, Desorb, and Bake Sample transfer line: ambient to 295ºC Valve oven: ambient to 350ºC Sparge mount: ambient to 200ºC Temperature accuracy: +/- 2% or +/- 2ºC (whichever is greater) for all heated zones Temperature stability: +/- 2ºC for all heated zones Optional sample heater: ambient to 200ºC (350ºC with the Air-Tube Desorber) Heated zones tested during system self-test |
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Electronic Control |
250 programmable methods with naming capability Method sequencing |
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Communications interface |
Ethernet/LAN connection Full-color, Windows CE-based touchscreen graphical user interface Optional lower-cost, PC-only version Windows-based PC operation software package Internal communications by RS-232 and RS-485 connections |
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User interface languages |
English, Chinese |
