Alpha 400 is a compact GC containing all the essential elements: preconcentration sampling unit, backflush valve, separation column in special small oven unit and detector. The detector is a PID.
The gas sample is concentrated in a TRAP. The sample is then desorbed and injected over the valve into a column and benzene passes on to the detector. The system is optimized for ambient benzene concentrations.
All higher boiling hydrocarbons will be BACKFLUSHED. This gives two advantages to the system: auto cleaning every cycle and that a very short cycle ( for benzene standard 10 minutes). The system is adapted to the specific hydrocarbon that must be monitored with regards to the essential parameters: column, flow, temperature and backflush setting. The OVEN is isothermal
Alpha’s software has got two levels of user’s interfaces: user’s level for an operator and a higher level for a technician allowing to adjust, calibrate and maintain the gc. Both interfaces communicate with a Server. GC data can be accessed locally or remotely by dedicated software for client and for technicians for all necessary functions: data transfer, including alarms, calibration start, program adjustment, communications with external equipment like stream selectors. the access can be local, by modem or via internet.
- CE approval for EMC conformity: EN 61010-1, EN 61000-6-2 and EN 60111-6-3
PID Levels: 0,15ppb to 0,03 ppm for benzene Cycle: 10 min
0 – 100 ppb for PID
<1% of FS
Column cage with special application column 10 port valve Synspec; pre-concentration trap; detector PID
19” rack, 3 standard Height Units, depth 37.2 cm net, weight 12 Kgs
Internal calibration switch for calibration zero and span gas Gas stream required 25 ml at ambient pressure
Consumption of gas
PID : Nitrogen, quality 5.0, 3.0 bar 20 ml/min
220 V AC, 200 VA (110 V AC available)
Computer Pentium class, hard disk >20Gb, 6” full colour LCD
CE approval for EMC conformity :
Windows Xpe Embedded, GC Software
Direct control via external screen, keyboard or mouse
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