Introduction
Specifications
Thermo Electron Corporation 48i Instruction Manual 1-3
Figure 1-1. Model 48i Flow Schematic
Specifications Table 1-1. Model 48i Specifications
Preset ranges 0-1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000 (ppm
or mg/m
3
)
Custom ranges 0-1 to 10000 (ppm or mg/m
3
)
Zero roise 0.02 ppm RMS (30 second averaging time)
Lower detectable limit 0.04 ppm
Zero drift (24 hour) < 0.1 ppm
Span drift ±
1% full-scale
Response time 60 seconds (30 second averaging time)
Linearity ±
1% of full-scale ≤ 1000 ppm
±
2.5% of full-scale > 1000 ppm
Sample flow rate 1.0 LPM
Operating temperature
20–30 °C (may be safely operated over the range of 0–45 °C)
*
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