CO analyzers based on infrared absorption would give greater sensitivity under which of the following conditions?
A. With larger cell path lengths
B. With smaller cell path lengths
C. By changing the gases in the reference cell
D. By increasing the sample flow rate
Answer:A
CO analyzers based on infrared absorption would give greater sensitivity under which of the following conditions?
A. With larger cell path lengths B. With smaller cell path lengths C. By changing the gases in the reference cell D. By increasing the sample flow rate
Explanation: CO analyzers based on infrared absorption would give greater sensitivity with larger cell path lengths. If 1m path length is given, the range is from 0 to 50ppm.