This H2S-SO2 analyzer is self-contained an has superior zero stability

From refineries to land fills, the Model 450C is the only choice to meet your continuous monitoring needs. The long proven pulsed fluorescent design of this instrument provides the most reliable data capture in its field. Simultaneous readings of H2S and SO2 are provided on a local display and via analog and serial outputs. Minimum detectable concentrations as low as 0.5 parts per billion are achieved through the superior optical system in this highly reliable instrument.

Product Details

The Model 450C consists of an H 2 S to SO 2 converter coupled to a pulsed fluorescence SO 2 analyzer. Continuous H 2 S monitoring is accomplished by conversion of the H 2 S in the sample to SO 2 and its subsequent detection by the SO 2 analyzer according to the following reaction:

H 2 S + 3/2(O 2 ) › SO 2 + H 2 O

Key Features

• Field programmable ranges
• Long life - stable UV source nominal life over two years
• MTBF = two years (except for pump)
• Temperature stabilized reaction chamber
• Excitation intensity stabilization
• Modular electronic design
• Pulsed excitation
• UV lamp diagnostic
• Electronic test pulse diagnostic
• Maintenance diagnostic
• RS-232 interface


Specifications

Ranges	0-50, 100, 200, 500, 1000 ppb and 0-1, 2, 5, 10, 20*, 50*, and 100* ppm (*ranges applicable to SO2 analysis only)
Linearity	+1% of full-scale
Zero Noise (24 hour)	1.0 ppb (10 sec. avg. time), 0.5 ppb RMS (60 sec. avg. time), 0.25 ppb (300 sec. avg. time)
Lower Detectable Limit	2.0 ppb (10 sec. avg. time), 1.0 ppb (60 sec. avg. time), 0.5 ppb (300 sec. avg. time)
Zero Drift (24 hour)	less than 1 ppb
Span Drift (24 hour)	+0.5% per week
Response Time	approximately 3 minutes to 90% (10 second average time)
Precision	1% of reading or 1 ppb
Sample Flow Rate	0.5 LPM standard, 1 LPM (optional)
Interferences	less than LDL except for: (EPA levels) NO ‹ 1 ppb, M-Xylene ‹ 1 ppb and H2O ‹ 3% of reading
Power Requirements	90-100 VAC @ 50/60Hz, 105-125 VAC @ 50/60Hz, 210-250 VAC @ 50/60HZ
Dimensions	16.75"(W) x 8.62"(H) x 23"(D)
Weight	63 lbs.
Outputs	voltage, current, RS-232/485