Thermo Scientific 49i, Instruction Manual, Page: 25 / 314

Introduction
Specifications
Thermo Fisher Scientific Model 49
i
Instruction Manual 1-3
each cell and outputs the average concentration to the front panel display,
the analog outputs, and also makes the data available over the serial or
ethernet connection.
Figure 1-1. Model 49
i
Flow Schematic
Specifications
Table 1-1. Model 49
i
Specifications
Preset ranges 0-0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100, 200 ppm
0-0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100, 200, 400 mg/m
3
Custom ranges 0-0.05 to 200 ppm
0-0.1 to 400 mg/m
3
Zero roise 0.25 ppb RMS (60 second averaging time)
Lower detectable limit 1.0 ppb
Zero drift < 1 ppb/24 hour
< 2 ppb/7 day
Span drift less than 1% per month (including drift of transducers)
Response time 20 seconds (10 seconds lag time)
Linearity
±
1% of full-scale
Sample flow rate 1
–
3 LPM
Operating temperature 20–30 °C (may be safely operated over the range of 0–45 °C)
*