Seven Hills - LPG & LNG Auto Sampler
From Process Control & Instrumentation Division - Auto Sampler
Seven Hills (LPG-Autosampler, Patent Pending) accessory is now available for delivery. The LPG autosampler incorporates our standard flow through Raman sample cell and uses an InPhotonics Raman probe to optically connect the laboratory accessory to our Laboratory Raman spectrograph. The accessory can hold up to 6 sample cylinders.
Double block/bleed valves with minimal dead space ...
Double block/bleed valves with minimal dead space and complete flushing of the lines post spectrum acquisition are some of the methods used to ensure there is no cross contamination between different cylinders. Typical flush times are ~ 20 seconds. The user can load a mixture of different types of samples and our Seven Hills Raman software automatically loads the appropriate chemometric models to predict the correct parameters.
Prior to starting a batch of samples, a performance check is made to ensure the system is operating properly, and the instrument automatically detects error conditions, i.e. no sample present, low sample bomb pressure, low air pressure powering pneumatic valves. Raman spectra and predictions are stored and also made available in a LIMS report format. The LPG-autosampler is designed to handle most LPG type products
Specification
Dimensions (LxWxH): 17in x 17in x 17in (432mm x 432mm x 432mm); Note: 500 cc cylinders require bench clearance of ~28in
Net Weight: 42 lbs (19 kg)
Power Supply: 120 – 240 50/60 Hz @ 1.0 A)
Fuse Rating: 1 Amp
Cylinder Size: 150 to 500 cc with DESO (Red Stem Sleeve)
Sample Pressure: 250 to 300 psi
Sample Measurement: 3 minutes
Sample Consumption: Analysis utilizes ~ 50 cc of product per measurement
Pressurized Instrument Air: 80 to 120 psi required for activating sample valves
Sample Cell Pump
The Sample Handling System comes with an automated/manually operated, variable speed pump controller and sample interface flow cell. The pump comes with a 316 SS, magnetically-coupled pump head capable of flow rates from 5 to 90 cc/min. Flow cells are constructed from 316 SS and accept 1/8' standard tubing (larger size tubing fittings available) through 316 SS SwagelokTM o-ring face seal inflow and outflow connectors. Flow cell design directs sample stream to continually clean the Raman Probe interface minimizing cell maintenance and cleaning. The flow cell can accommodate operating pressures > 250 psi and flow rates from 5 cc/min to over 100 cc/min.
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