•Constant flow operating range─low flow:
　5-500cc/min; high flow: 600-5000cc/min.
•Easy to use: three simple menu modes, LCD
　intelligent display (two 16 character lines).
•Can be programmed to provide delayed start, run
　time, intermittent hourly samples.
•Flow interrupt feature includes auto-restart in
　case of temporary flow blockage or filter
　"fall-off."Total elapsed sampling time is
　saved in memory.